⚔ Free Nutrition Tool

FREE MACRO CALCULATOR PROTEIN, CARBS & FATS (LBS & INCHES)

Calculate your exact daily calories, protein, carbs, and fats to fuel your training and conquer your physique goals.

⚠ Please fill in all required fields (height, weight, age, gender, activity level, and goal).
DAILY TARGET CALORIES
KCAL / DAY
GRAMS / DAY
PROTEIN
— kcal
— %
Builds & preserves muscle. Aim for lean meats, eggs, and whey.
GRAMS / DAY
CARBS
— kcal
— %
Primary fuel for training. Focus on oats, rice, and sweet potato.
GRAMS / DAY
FATS
— kcal
— %
Hormone health & recovery. Choose avocado, olive oil, and nuts.
MACRO SPLIT VISUAL
—g
Protein
—g
Carbs
—g
Fats
Protein
Carbs
Fats
MEAL-BY-MEAL BREAKDOWN
METABOLIC DATA & PROJECTIONS
BMR (kcal/day)
TDEE (kcal/day)
Est. Weight Change / Week
Est. Weight Change / Month

HOW ARE YOUR MACROS CALCULATED?

This calculator uses the Mifflin-St Jeor equation — the gold standard for estimating Basal Metabolic Rate (BMR), which are the calories your body burns at complete rest. From BMR, an activity multiplier is applied to determine your Total Daily Energy Expenditure (TDEE).

  • BMR (Male): (10 × weight kg) + (6.25 × height cm) − (5 × age) + 5
  • BMR (Female): (10 × weight kg) + (6.25 × height cm) − (5 × age) − 161
  • TDEE: BMR × Activity Multiplier (1.2 to 1.9 based on movement)
  • Target Calories: TDEE adjusted by your specific goal (deficit or surplus)
  • Macros: Mathematically distributed from your target calories using your selected diet preference split
⚔ Warrior’s Note: These numbers are highly accurate, evidence-based starting targets, not rigid biological laws. Track your scale weight and mirror results over 2–3 weeks and adjust your daily calories by ±100–200 kcal based on real-world progress. Consistency beats perfection.
⚔ Behind The Science

HOW THIS US-BASEDMACRO CALCULATOR WORKS

Every number this calculator gives you is backed by peer-reviewed science. Here is a full breakdown — step by step, formula by formula — of exactly how your macros are calculated.

THE FULL PROCESS AT A GLANCE

FROM YOUR STATS TO YOUR MACROS

The calculator follows a logical chain: it first estimates how many calories your body burns at rest, then scales that number to your real lifestyle, then adjusts it for your specific goal, and finally splits the resulting calories into grams of protein, carbs, and fats.

1
COLLECT YOUR STATS → Height, Weight, Age, Gender
These four inputs feed the Mifflin-St Jeor equation to produce your Basal Metabolic Rate (BMR) — the calories your body needs to simply stay alive.
2
ACTIVITY MULTIPLIER → BMR × Factor = TDEE
Your activity level is applied as a multiplier (1.2–1.9) to BMR. The result is your Total Daily Energy Expenditure — the actual calories you burn each day.
3
GOAL ADJUSTMENT → TDEE × Goal % = Target Calories
Your goal (cut, maintain, bulk) adds or removes a percentage from TDEE to create your personalised daily calorie target.
4
MACRO SPLIT → Target Calories → P / C / F grams
Target calories are distributed across protein, carbs, and fats using your chosen diet preference ratio, then converted to grams using calorie-per-gram values (4/4/9).
5
MEAL BREAKDOWN → Daily Totals ÷ Number of Meals
Your daily calorie and macro totals are evenly divided by the number of meals you select (3–6), giving you a simple per-meal target to hit.
STEP 1

CALCULATING YOUR BMR (MIFFLIN-ST JEOR EQUATION)

Your Basal Metabolic Rate (BMR) is the number of calories your body burns at complete rest — just to keep your heart beating, lungs breathing, and organs functioning. It forms the foundation of every number this calculator produces.

We use the Mifflin-St Jeor equation, published in 1990, which has been validated as the most accurate BMR formula for the general population across multiple independent studies — outperforming the older Harris-Benedict equation by approximately 5%.

⚔ MIFFLIN-ST JEOR FORMULA — MALE
BMR = (10 × Weight kg) + (6.25 × Height cm) (5 × Age) + 5
⚔ MIFFLIN-ST JEOR FORMULA — FEMALE
BMR = (10 × Weight kg) + (6.25 × Height cm) (5 × Age) 161
The only difference between male and female formulas is the constant at the end (+5 vs −161), which accounts for average physiological differences in resting metabolism.
⚔ WORKED EXAMPLE — MALE, 28 YRS, 80KG, 178CM
Weight component (10 × 80)800
Height component (6.25 × 178)1,112.5
Age component (5 × 28)− 140
Gender constant (male)+ 5
BMR Result1,777.5 kcal/day
WHY BMR ALONE IS NOT ENOUGH
BMR only tells you calories burned at complete rest. You are not resting all day. That is why we multiply BMR by your activity level in Step 2 to get a real-world calorie number.
STEP 2

DETERMINING YOUR TDEE (ACTIVITY MULTIPLIER)

Your Total Daily Energy Expenditure (TDEE) is the total number of calories you burn in a day when all physical activity is accounted for. It is calculated by multiplying your BMR by an activity factor that reflects your lifestyle.

⚔ TDEE FORMULA
TDEE = BMR × Activity Multiplier
Activity Level Multiplier Description Example
SEDENTARY × 1.200 Little to no exercise Desk job, no gym
LIGHTLY ACTIVE × 1.375 Light exercise 1–3 days/week Casual gym-goer, walking
MODERATELY ACTIVE × 1.550 Moderate exercise 3–5 days/week Regular gym, active job
VERY ACTIVE × 1.725 Hard training 6–7 days/week Athlete, manual labour
EXTREMELY ACTIVE × 1.900 Very hard training or 2× daily Elite athlete, military
⚔ CONTINUING EXAMPLE — MODERATELY ACTIVE (× 1.55)
BMR from Step 11,777.5 kcal
Activity Multiplier× 1.55
TDEE Result2,755 kcal/day
STEP 3

ADJUSTING FOR YOUR GOAL (CALORIC DEFICIT VS. SURPLUS)

Once TDEE is established, a goal-based percentage adjustment is applied to arrive at your daily calorie target. Eating below TDEE creates a deficit (fat loss); eating above creates a surplus (muscle gain).

⚔ TARGET CALORIES FORMULA
Target Calories = TDEE × Goal Multiplier
Goal Multiplier Calorie Change Best For
AGGRESSIVE CUT × 0.750 −25% from TDEE Fast fat loss (max 12 weeks)
CUT / FAT LOSS × 0.850 −15% from TDEE Lean cut, muscle preservation
MAINTAIN × 1.000 0% change Hold weight, body recomposition
LEAN BULK × 1.100 +10% above TDEE Gradual clean muscle gain
AGGRESSIVE BULK × 1.200 +20% above TDEE Maximum mass gain, off-season
⚔ CONTINUING EXAMPLE — LEAN BULK GOAL (× 1.10)
TDEE from Step 22,755 kcal
Goal Multiplier (Lean Bulk)× 1.10
Target Calories3,031 kcal/day
⚠️
DO NOT STAY IN AN AGGRESSIVE DEFICIT INDEFINITELY
A −25% calorie deficit is a powerful tool, but using it for more than 8–12 weeks risks muscle loss, hormonal disruption, and metabolic adaptation. Cycle back to maintenance every 8–12 weeks.
STEP 4

SETTING YOUR MACRONUTRIENTS TARGETS

Your target calories are split into three macronutrients — Protein, Carbohydrates, and Fats — using your selected diet preference ratio. Each macro has a fixed calorie-per-gram value used to convert percentages into grams.

🥩
PROTEIN — 4 KCAL/G
Builds and repairs muscle tissue. Critical for recovery. The highest thermic effect of all macros (~25–30% of calories burned in digestion). Never drop below 0.7g per lb of bodyweight.
🍚
CARBOHYDRATES — 4 KCAL/G
Primary fuel source for high-intensity training. Stored as glycogen in muscles and liver. Directly affects workout performance, pump, and recovery speed.
🥑
FATS — 9 KCAL/G
Essential for hormone production (including testosterone), joint health, vitamin absorption (A/D/E/K), and brain function. Never drop below 0.3g per lb of bodyweight.
🔢
CALORIE-PER-GRAM VALUES
Protein = 4 kcal/g  |  Carbs = 4 kcal/g  |  Fats = 9 kcal/g. These are fixed constants used to convert macro percentages into gram targets.
⚔ MACRO GRAM CALCULATION
Protein (g) = (Target Calories × Protein %) ÷ 4
Carbs (g) = (Target Calories × Carbs %) ÷ 4
Fats (g) = (Target Calories × Fats %) ÷ 9
⚔ CONTINUING EXAMPLE — BALANCED SPLIT (40P / 30C / 30F) ON 3,031 KCAL
Protein (3031 × 0.40) ÷ 4303 g
Carbs   (3031 × 0.30) ÷ 4227 g
Fats    (3031 × 0.30) ÷ 9101 g
Total Calories (rounding-adjusted)≈ 3,031 kcal
STEP 5

DIET TYPE SPLITS EXPLAINED (USDA-ALIGNED)

The calculator offers four evidence-informed diet templates. Each distributes your target calories differently across protein, carbs, and fats to match your nutritional philosophy and training style.

⚖️ BALANCED (40% P / 30% C / 30% F)

PROTEIN
40%
CARBS
30%
FATS
30%

The most versatile split. Works for fat loss, maintenance, and moderate bulking. High protein intake protects muscle at all stages, while moderate carbs sustain training energy and fats support hormones.

🥩 HIGH PROTEIN (50% P / 25% C / 25% F)

PROTEIN
50%
CARBS
25%
FATS
25%

Ideal for aggressive cuts where muscle preservation is paramount, or experienced lifters in a lean bulk who prioritise anabolic stimulus. The high thermic effect of protein also aids fat burning during a deficit.

🥑 LOW CARB (40% P / 15% C / 45% F)

PROTEIN
40%
CARBS
15%
FATS
45%

Reduces insulin spikes and promotes fat utilisation as fuel. Well-suited for individuals with carbohydrate sensitivity, steady-state cardio athletes, or those on a physique cut who train at moderate intensity.

🔥 KETO (35% P / 5% C / 60% F)

PROTEIN
35%
CARBS
5%
FATS
60%

Induces nutritional ketosis — a metabolic state where the liver converts fat into ketones used as the body’s primary fuel source instead of glucose. Effective for fat loss and mental clarity, but requires a 2–4 week adaptation period.

STEP 6

MEAL-BY-MEAL BREAKDOWN

The calculator divides your daily totals evenly across 3, 4, 5, or 6 meals. This is a practical tool — research shows meal timing and frequency matter less than total daily intake for body composition. Choose a meal frequency that fits your lifestyle.

Meals/DayIdeal ForSpacing
3 MealsBusy professionals, intermittent fasting adjacent~5–6 hours apart
4 MealsMost working adults, balanced approach~4 hours apart
5 MealsActive athletes, high calorie bulks~3 hours apart
6 MealsBodybuilders, extreme calorie targets~2.5–3 hours apart
💡
PRE & POST WORKOUT NUTRITION TIP
Regardless of your meal count, prioritise carbohydrates before training (30–60 min prior) for energy, and protein + carbs within 30–90 minutes after training to maximise muscle protein synthesis and glycogen replenishment.
STEP 7

WEIGHT CHANGE PROJECTIONS (LBS PER WEEK)

The projection section estimates how much weight you will gain or lose over time if you consistently hit your daily calorie target. It uses the widely accepted 7,700 kcal ≈ 1 kg of body weight rule.

⚔ PROJECTION FORMULAS
Weekly kcal Difference = (Target Calories TDEE) × 7
Weekly kg Change      = Weekly kcal Diff ÷ 7,700
Monthly kg Change      = Weekly kg Change × 4.33
12-Week Projection     = Weekly kg Change × 12
7,700 kcal/kg is a population average. Individual rates vary based on metabolic adaptation, water retention, and training. Use this as a guide, not a guarantee.
📊
HOW TO USE PROJECTIONS CORRECTLY
Track your weight every morning after waking for 2–3 weeks and take the weekly average. If your weight is not moving as projected by ±0.2 kg/week, adjust your intake by 100–200 kcal up or down. Your metabolism adapts — your numbers should too.
⚔ Real-World Walkthrough

3 REAL-WORLD AMERICAN
MACRO PROFILES

Three real American fitness profiles — a firefighter cutting for summer, a college athlete bulking for the season, and a nurse maintaining her physique — calculated step by step using imperial units.

🧔
MARCUS
JOHNSON
🇺🇸 Dallas, TX
⚔ PROFILE — MALE FIREFIGHTER, AGE 34
34
Age
6′ 1″
Height
225 lbs
Weight
Very Active
Activity
🗡️ GOAL: CUT / FAT LOSS  |  TARGET: HIGH PROTEIN SPLIT  |  4 MEALS / DAY
0
IMPERIAL → METRIC UNIT CONVERSION
The Mifflin-St Jeor formula requires kg and cm. We convert first.
⚔ CONVERSION FORMULAS
Weight: 225 lbs ÷ 2.2046 = 102.1 kg
Height: (6 ft × 12) + 1 in = 73 inches × 2.54 = 185.4 cm
1
BASAL METABOLIC RATE (BMR)
Mifflin-St Jeor Formula — Male
⚔ FORMULA
BMR = (10 × 102.1) + (6.25 × 185.4) (5 × 34) + 5
10 × 102.1 kg (weight)1,021
6.25 × 185.4 cm (height)+ 1,158.75
5 × 34 yrs (age)− 170
Male constant+ 5
🔥 MARCUS’S BMR2,014.75 kcal/day
2
TOTAL DAILY ENERGY EXPENDITURE (TDEE)
Very Active = × 1.725 (hard training 6–7 days/week + physical job)
⚔ FORMULA
TDEE = 2,014.75 × 1.725 = 3,475.4 ≈ 3,475 kcal/day
WHY VERY ACTIVE FOR A FIREFIGHTER?
Marcus trains 6 days/week at the gym and works a physically demanding job. His NEAT (Non-Exercise Activity Thermogenesis) — calories burned moving, climbing, carrying equipment — pushes him firmly into the Very Active bracket.
3
GOAL-ADJUSTED TARGET CALORIES
Cut / Fat Loss = × 0.85 (−15% deficit)
⚔ FORMULA
Target = 3,475 × 0.85 = 2,954 kcal/day
TDEE (maintenance)3,475 kcal
Cut multiplier (×0.85)− 521 kcal/day
🗡️ TARGET CALORIES (FAT LOSS)2,954 kcal/day

A 521 kcal/day deficit × 7 days = 3,647 kcal weekly deficit — roughly 0.47 kg (≈ 1 lb) of fat loss per week, which is within the safe and sustainable zone.

4
MACRO CALCULATION — HIGH PROTEIN SPLIT
50% Protein / 25% Carbs / 25% Fats on 2,954 kcal
⚔ MACRO FORMULAS
Protein : (2,954 × 0.50) ÷ 4 = 370 g  (1,477 kcal)
Carbs : (2,954 × 0.25) ÷ 4 = 185 g   (738 kcal)
Fats : (2,954 × 0.25) ÷ 9 = 82 g   (738 kcal)
370
GRAMS / DAY
PROTEIN
1,477 kcal
50% of calories
185
GRAMS / DAY
CARBS
738 kcal
25% of calories
82
GRAMS / DAY
FATS
738 kcal
25% of calories
P 50%
C 25%
F 25%
Protein — 370g
Carbs — 185g
Fats — 82g
5
MARCUS’S 4-MEAL DAILY PLAN
2,954 kcal ÷ 4 meals = 739 kcal per meal
MealTimeCaloriesProteinCarbsFatsExample Foods
BREAKFAST 6:30 AM 739 kcal93g46g21g 6 egg whites + 2 whole eggs, oatmeal, banana
LUNCH 12:00 PM 739 kcal93g46g21g 8oz grilled chicken, 1 cup brown rice, broccoli
PRE-WORKOUT 4:30 PM 739 kcal93g46g21g Whey protein shake, sweet potato, almonds
DINNER 8:00 PM 739 kcal93g46g21g 8oz salmon, asparagus, quinoa, olive oil
DAILY TOTAL 2,956 kcal 372g 184g 84g ≈ target (rounding)
6
MARCUS’S FAT LOSS PROJECTIONS
Based on consistent 521 kcal/day deficit (7,700 kcal = 1 kg)
−3,647
kcal deficit/week
−0.47 kg
weight change/week
−2.0 kg
weight change/month
−5.7 kg
12-week projection
🎯
MARCUS’S 12-WEEK RESULT PREDICTION
Starting at 225 lbs (102.1 kg), Marcus can expect to reach approximately 212.5 lbs (96.4 kg) in 12 weeks — losing around 12.5 lbs of predominantly fat tissue while maintaining muscle on a high-protein protocol.
🏈
TYLER
BROOKS
🇺🇸 Columbus, OH
⚔ PROFILE — MALE COLLEGE ATHLETE, AGE 21
21
Age
5′ 11″
Height
178 lbs
Weight
Ext. Active
Activity
💪 GOAL: LEAN BULK  |  TARGET: BALANCED SPLIT  |  5 MEALS / DAY
0
IMPERIAL → METRIC UNIT CONVERSION
The Mifflin-St Jeor formula requires kg and cm.
⚔ CONVERSION FORMULAS
Weight: 178 lbs ÷ 2.2046 = 80.7 kg
Height: (5 ft × 12) + 11 in = 71 inches × 2.54 = 180.3 cm
1
BASAL METABOLIC RATE (BMR)
Mifflin-St Jeor Formula — Male
⚔ FORMULA
BMR = (10 × 80.7) + (6.25 × 180.3) (5 × 21) + 5
10 × 80.7 kg807
6.25 × 180.3 cm+ 1,126.9
5 × 21 yrs− 105
Male constant+ 5
💪 TYLER’S BMR1,833.9 kcal/day
2
TOTAL DAILY ENERGY EXPENDITURE (TDEE)
Extremely Active = × 1.9 (2× daily training + team practice)
⚔ FORMULA
TDEE = 1,833.9 × 1.9 = 3,484.4 ≈ 3,484 kcal/day
3
GOAL-ADJUSTED TARGET CALORIES
Lean Bulk = × 1.10 (+10% surplus)
⚔ FORMULA
Target = 3,484 × 1.10 = 3,832 kcal/day
TDEE (maintenance)3,484 kcal
Lean Bulk surplus (+10%)+ 348 kcal/day
💪 TARGET CALORIES (LEAN BULK)3,832 kcal/day
4
MACRO CALCULATION — BALANCED SPLIT
40% Protein / 30% Carbs / 30% Fats on 3,832 kcal
⚔ MACRO FORMULAS
Protein : (3,832 × 0.40) ÷ 4 = 383 g  (1,533 kcal)
Carbs : (3,832 × 0.30) ÷ 4 = 287 g  (1,150 kcal)
Fats : (3,832 × 0.30) ÷ 9 = 128 g  (1,150 kcal)
383
GRAMS / DAY
PROTEIN
1,533 kcal
40% of calories
287
GRAMS / DAY
CARBS
1,150 kcal
30% of calories
128
GRAMS / DAY
FATS
1,150 kcal
30% of calories
P 40%
C 30%
F 30%
Protein — 383g
Carbs — 287g
Fats — 128g
5
TYLER’S 5-MEAL DAILY PLAN
3,832 kcal ÷ 5 meals = 766 kcal per meal
MealTimeCaloriesProteinCarbsFatsExample Foods
BREAKFAST7:00 AM766 kcal77g57g26g4 whole eggs, 2 cups oatmeal, whole milk, blueberries
MID-MORNING10:30 AM766 kcal77g57g26gGreek yogurt, granola, whey shake, peanut butter
LUNCH1:30 PM766 kcal77g57g26g10oz lean beef, 1.5 cups white rice, mixed veg, avocado
PRE-WORKOUT4:00 PM766 kcal77g57g26gChicken breast, pasta, banana, olive oil dressing
DINNER7:30 PM766 kcal77g57g26gSteak, sweet potato, spinach salad, walnuts
DAILY TOTAL 3,830 kcal 385g 285g 130g ≈ target (rounding)
6
TYLER’S LEAN BULK PROJECTIONS
Based on consistent 348 kcal/day surplus
+2,436
kcal surplus/week
+0.32 kg
weight change/week
+1.4 kg
weight change/month
+3.8 kg
12-week projection
🏆
TYLER’S 12-WEEK RESULT PREDICTION
Starting at 178 lbs (80.7 kg), Tyler can expect to reach approximately 186 lbs (84.5 kg) in 12 weeks — adding approximately 3.8 kg of lean mass with minimal fat gain due to the controlled surplus.
👩
ASHLEY
RIVERA
🇺🇸 Portland, OR
⚔ PROFILE — FEMALE NURSE & CROSSFIT ATHLETE, AGE 29
29
Age
5′ 6″
Height
145 lbs
Weight
Mod. Active
Activity
🛡️ GOAL: MAINTAIN  |  TARGET: BALANCED SPLIT  |  4 MEALS / DAY
0
IMPERIAL → METRIC UNIT CONVERSION
The Mifflin-St Jeor formula requires kg and cm.
⚔ CONVERSION FORMULAS
Weight: 145 lbs ÷ 2.2046 = 65.8 kg
Height: (5 ft × 12) + 6 in = 66 inches × 2.54 = 167.6 cm
1
BASAL METABOLIC RATE (BMR)
Mifflin-St Jeor Formula — Female (constant = −161)
⚔ FORMULA
BMR = (10 × 65.8) + (6.25 × 167.6) (5 × 29) 161
10 × 65.8 kg658
6.25 × 167.6 cm+ 1,047.5
5 × 29 yrs− 145
Female constant− 161
🛡️ ASHLEY’S BMR1,399.5 kcal/day
2
TOTAL DAILY ENERGY EXPENDITURE (TDEE)
Moderately Active = × 1.55 (CrossFit 4x/week + active nursing shifts)
⚔ FORMULA
TDEE = 1,399.5 × 1.55 = 2,169.2 ≈ 2,169 kcal/day
3
GOAL-ADJUSTED TARGET CALORIES
Maintain = × 1.0 (no adjustment to TDEE)
⚔ FORMULA
Target = 2,169 × 1.0 = 2,169 kcal/day
🛡️
MAINTENANCE IS STILL AN ACTIVE GOAL
At maintenance calories, Ashley can still improve body composition through body recomposition — losing fat and gaining muscle simultaneously — especially given her regular CrossFit training. Maintenance is not “doing nothing”; it is holding the line while improving performance.
4
MACRO CALCULATION — BALANCED SPLIT
40% Protein / 30% Carbs / 30% Fats on 2,169 kcal
⚔ MACRO FORMULAS
Protein : (2,169 × 0.40) ÷ 4 = 217 g  (868 kcal)
Carbs : (2,169 × 0.30) ÷ 4 = 163 g  (651 kcal)
Fats : (2,169 × 0.30) ÷ 9 = 72 g   (651 kcal)
217
GRAMS / DAY
PROTEIN
868 kcal
40% of calories
163
GRAMS / DAY
CARBS
651 kcal
30% of calories
72
GRAMS / DAY
FATS
651 kcal
30% of calories
P 40%
C 30%
F 30%
Protein — 217g
Carbs — 163g
Fats — 72g
5
ASHLEY’S 4-MEAL DAILY PLAN
2,169 kcal ÷ 4 meals = 542 kcal per meal
MealTimeCaloriesProteinCarbsFatsExample Foods
BREAKFAST6:00 AM542 kcal54g41g18g3 egg whites, whole egg, Greek yogurt, berries, oats
LUNCH12:00 PM542 kcal54g41g18gTurkey wrap, quinoa salad, hummus, apple
PRE-WORKOUT5:00 PM542 kcal54g41g18gWhey protein, rice cakes, almond butter, banana
DINNER8:00 PM542 kcal54g41g18g6oz tilapia, roasted sweet potato, olive oil, greens
DAILY TOTAL 2,168 kcal 216g 164g 72g ≈ target (rounding)
6
ASHLEY’S MAINTENANCE PROJECTIONS
Zero caloric surplus or deficit at maintenance
0
kcal change/week
0.0 kg
scale weight/week
Recomp
body composition
↑ Perf.
CrossFit performance
💡
ASHLEY’S 12-WEEK OUTCOME
The scale may stay near 145 lbs, but body composition will shift. At high protein intake with consistent CrossFit training, Ashley can expect measurable improvements in muscle tone, body fat percentage, and athletic performance — even with the scale barely moving.

SIDE-BY-SIDE COMPARISON: CUT, BULK,AND MAINTAIN

A full comparison of all calculated values across Marcus, Tyler, and Ashley — showing how dramatically numbers shift based on gender, body size, activity level, and goal.

Metric 🔥 Marcus (Cut) 💪 Tyler (Bulk) 🛡️ Ashley (Maintain)
Age34 yrs21 yrs29 yrs
Height6′ 1″ / 185.4 cm5′ 11″ / 180.3 cm5′ 6″ / 167.6 cm
Weight225 lbs / 102.1 kg178 lbs / 80.7 kg145 lbs / 65.8 kg
Activity LevelVery Active × 1.725Extremely Active × 1.9Moderately Active × 1.55
BMR2,015 kcal1,834 kcal1,400 kcal
TDEE3,475 kcal3,484 kcal2,169 kcal
GoalCut (×0.85)Lean Bulk (×1.10)Maintain (×1.00)
Target Calories2,954 kcal3,832 kcal2,169 kcal
Diet SplitHigh Protein 50/25/25Balanced 40/30/30Balanced 40/30/30
Protein370 g383 g217 g
Carbs185 g287 g163 g
Fats82 g128 g72 g
Meals / Day4 meals5 meals4 meals
12-Week Projection−5.7 kg (−12.5 lbs)+3.8 kg (+8.4 lbs)≈ 0 kg (recomp)

NOW CALCULATE YOUR OWN MACROS

You have seen exactly how the numbers work. Now enter your own stats and get your personalised battle plan in seconds.

⚔ Expert Nutrition Guide

10 PRO TIPS FOR MACRO
TRACKING ON AN AMERICAN LIFESTYLE

Hard-earned knowledge from coaches, athletes, and registered dietitians — distilled into actionable strategies tailored specifically for the American diet, lifestyle, and food landscape.

10
Pro Tip Sections
50+
Actionable Tips
8
Restaurant Hacks
USA
Specific Context
PRO TIP SECTION 01
MACRO TRACKING BASICS

Tracking macros is a skill — it takes about 2–3 weeks to become second nature. The warriors who succeed are not the ones who track perfectly; they are the ones who track consistently.

01
⚖️
WEIGH FOOD RAW, NOT COOKED
Cooked chicken breast weighs 25–30% less than raw due to water loss. All nutrition databases list values for raw weight unless stated otherwise. Always weigh protein sources before cooking to avoid consistent undercounting.
ACCURACY TIP
02
📱
LOG FOOD BEFORE YOU EAT
Pre-logging your meals takes 2 minutes and gives you full control over your day. It prevents the end-of-day panic when you realise you are 80g short on protein. Build the plate before you eat it.
HABIT TIP
03
🎯
USE THE ±5g RULE
Do not chase perfection. Aim to land within ±5g of protein, ±5g of carbs, and ±3g of fats of your daily targets. Obsessing over exact grams causes stress, which raises cortisol — a hormone that actively works against fat loss.
MINDSET TIP
04
🔁
BUILD A ROTATION OF 15–20 MEALS
Elite athletes do not eat a different meal every day. They master a small rotation of high-macro meals that hit their numbers. Consistency in your food choices makes tracking effortless — you will stop needing to log after 3–4 weeks.
EFFICIENCY TIP
05
🌊
TRACK WATER LIKE A MACRO
Dehydration causes the body to confuse thirst for hunger, leading to excess snacking that destroys your deficit. American adults are chronically underhydrated. Target ½ oz per lb of bodyweight daily (e.g., 200 lbs = 100 oz = ~3 litres).
HYDRATION TIP
06
📊
TRACK WEEKLY AVERAGES, NOT DAILY
One bad day does not ruin a week. One bad week does not ruin a month. Judge your progress by 7-day rolling averages of calorie intake and bodyweight — not individual days. This removes the emotional noise from normal daily fluctuations.
PSYCHOLOGY TIP
PRO TIP SECTION 02
HITTING YOUR PROTEIN TARGET

For most Americans, protein is the hardest macro to hit. The average US adult consumes only 70–80g per day — far below the 150–300g required for serious training. Here is how to close that gap without eating chicken 24/7.

THE WARRIOR’S PROTEIN RULE
Every single meal must contain a primary protein source of at least 30g. This is non-negotiable. 30g per meal × 4 meals = 120g baseline before any snacks. Protein is the foundation — build the rest of the meal around it, not the other way around.
🥚
EGG WHITES ARE FREE PROTEIN
1 cup of liquid egg whites = 26g protein, 130 kcal, 0g fat. Add them to oatmeal, scramble with whole eggs, or blend into shakes. Cheap, tasteless, and brutally effective for hitting numbers.
🥤
STRATEGIC SHAKE PLACEMENT
A whey shake is not cheating — it is a tool. Use shakes to bridge protein gaps between meals, not replace food. One 30g whey shake mid-morning takes 45 seconds and is one of the most cost-effective protein sources available.
🧀
COTTAGE CHEESE AT NIGHT
Low-fat cottage cheese contains casein protein — a slow-digesting protein that feeds muscles through the night. 1 cup = 25g protein. Add berries or a drizzle of honey for palatability. A staple in every serious US bodybuilder’s arsenal.
🥫
CANNED TUNA & SALMON — EMERGENCY PROTEIN
Every American pantry should have 10 cans of tuna. One 5oz can = 25g protein, under 130 kcal. Mix with mustard, not mayo, to keep fats low. Zero prep time — essential for days when meal prep fails.
🫙
GREEK YOGURT OVER REGULAR YOGURT
Regular yogurt = 5–8g protein. Non-fat Greek yogurt (e.g., Chobani, Fage) = 17–20g protein per cup. Always choose Greek. Use it as a sour cream substitute, salad dressing base, and post-workout snack.
🌮
BUILD PROTEIN-FIRST PLATES
When eating a mixed meal, eat the protein source first. This ensures you consume the macro that matters most before appetite drops. Protein first, carbs second, fats last. Simple re-ordering that consistently improves macro compliance.
PRO TIP SECTION 03
USA GROCERY GUIDE

The best macros are built in the grocery store, not the kitchen. Here are the highest-value macro foods available at every major US grocery chain (Walmart, Costco, Kroger, Trader Joe’s, Whole Foods) — ranked by protein-per-dollar.

FoodServingProteinCarbsFatsCaloriesBest ForUS Store
Chicken Breast (boneless) 4 oz raw 26g0g3g130 kcal PROTEIN Costco, Walmart
93% Lean Ground Turkey 4 oz raw 22g0g8g160 kcal PROTEIN Kroger, Target
Whole Eggs 2 large 12g1g10g140 kcal PROTEIN FATS Any store
Non-Fat Greek Yogurt (Fage 0%) 1 cup 20g9g0g120 kcal PROTEIN Trader Joe’s, Kroger
Canned Chunk Light Tuna (in water) 5 oz can 25g0g1g110 kcal PROTEIN Any store ~$1.00
Old Fashioned Oats (Quaker) ½ cup dry 5g27g3g150 kcal CARBS Walmart, Any store
White/Brown Rice (dry) ¼ cup dry 3g37g0g160 kcal CARBS Costco bulk, Any
Sweet Potato 1 medium (130g) 2g26g0g112 kcal CARBS Any store
Avocado (Hass) ½ avocado 1g6g11g120 kcal FATS Costco 5-pack deal
Almonds (raw) 1 oz (28g) 6g6g14g160 kcal FATS Costco bulk best
Extra Virgin Olive Oil 1 tbsp 0g0g14g120 kcal FATS Trader Joe’s value
Low-Fat Cottage Cheese ½ cup 13g4g2g90 kcal PROTEIN Kroger, Walmart

“THE WARRIOR WHO CONTROLS HIS GROCERY CART CONTROLS HIS PHYSIQUE.”

— GENGHIS FITNESS
PRO TIP SECTION 04
USA RESTAURANT MACRO HACKS

Americans eat out an average of 5.9 times per week. Macro tracking cannot stop at the restaurant door. Here are exact ordering strategies for the most common US chain restaurants — with estimated macros.

🍗CHIPOTLEHIGH PROTEIN BUILD
Order: Bowl (not burrito), double chicken, black beans, fajita veggies, salsa (fresh tomato + tomatillo), no cheese, no sour cream, add guac.
P: ~65g C: ~55g F: ~18g ~640 kcal
🍔McDONALD’SEMERGENCY OPTION
Order: Egg McMuffin (skip hash brown) + side of apple slices + black coffee. Or: McDouble (no bun, no condiments) for a low-carb cut option.
P: ~18g C: ~30g F: ~12g ~300 kcal
🥙SUBWAYLEAN BUILD
Order: 6″ or Footlong Turkey Breast on 9-grain wheat, double meat, all veggies, yellow mustard (not mayo), no cheese. Ask for extra spinach.
P: ~35g C: ~48g F: ~6g ~390 kcal
🍣PANDA EXPRESSCUT OPTION
Order: Grilled Teriyaki Chicken + Mixed Vegetables (skip rice/noodles on a cut, or add steamed rice on bulk). Avoid breaded/fried options like Orange Chicken.
P: ~36g C: ~13g F: ~9g ~280 kcal
🥩TEXAS ROADHOUSEBULK OPTION
Order: 6 oz Sirloin, sweet potato (no butter), steamed broccoli. Skip the bread rolls — each one is ~227 kcal. Ask for dressing on the side for any salad.
P: ~50g C: ~35g F: ~14g ~470 kcal
🐟OLIVE GARDENDAMAGE CONTROL
Order: Herb-Grilled Salmon, no pasta, substitute steamed broccoli. Skip the breadsticks (each = 140 kcal) and use small portion of salad dressing.
P: ~46g C: ~12g F: ~19g ~400 kcal
🌯PANERA BREADWORK LUNCH
Order: You Pick Two — Chicken Noodle Soup + Caesar Salad with chicken (dressing on side, skip croutons). Use Panera’s online nutrition calculator to plan ahead.
P: ~38g C: ~30g F: ~14g ~390 kcal
STARBUCKSPROTEIN HACK
Order: Spinach, Feta & Egg White Wrap + black cold brew or unsweetened iced coffee. Avoid Frappuccinos — a Grande = 400+ kcal, mostly sugar.
P: ~20g C: ~34g F: ~10g ~290 kcal
🧠
THE #1 USA RESTAURANT PRO TIP
Use the restaurant’s nutrition PDF before you arrive. Every major US chain — Chipotle, McDonald’s, Chick-fil-A, Subway, Olive Garden — publishes full nutrition data online. Spend 60 seconds the night before deciding your order. This single habit eliminates 80% of restaurant macro surprises.
PRO TIP SECTION 05
SUNDAY MEAL PREP WAR PLAN

Meal prep is the single highest-ROI habit in macro tracking. 2.5 hours on Sunday = a controlled, on-target week. Skip prep and you are making nutrition decisions while hungry — which always ends badly.

SUNDAY 10:00 AM — 20 MINUTES
PLAN YOUR WEEK & BUILD YOUR GROCERY LIST
Open your macro app and map out 5 days of meals. Calculate exactly how many lbs of chicken, cups of rice, and cartons of eggs you need. Never grocery shop without a macro-mapped list. Unplanned grocery trips lead to unplanned foods.
PLANNINGACCOUNTABILITY
SUNDAY 11:00 AM — 30 MINUTES
GROCERY RUN — STICK TO THE PERIMETER
The perimeter of every US grocery store contains fresh produce, proteins, and dairy. The interior aisles contain processed foods. Shop the perimeter first, fill 80% of your cart, then selectively enter aisles for oats, rice, canned goods, and olive oil.
GROCERYWHOLE FOODS
SUNDAY 12:00 PM — 90 MINUTES
MASS COOK — 3 PROTEINS, 2 CARBS, 1 VEG
Run your oven, stovetop, and rice cooker simultaneously. Cook 3 protein sources (e.g., chicken breast, ground turkey, hard-boiled eggs), 2 carb sources (rice + sweet potatoes), and 1 vegetable in bulk (broccoli or spinach). Season simply — you can add variety per meal with sauces and spices.
BATCH COOKEFFICIENCY
SUNDAY 1:30 PM — 20 MINUTES
WEIGH, PORTION & LOG EVERYTHING
Weigh your cooked batches. Divide into 5-day portions in glass meal prep containers. Log all containers in your tracking app right now while the weights are fresh. Monday-Friday, all you do is grab a container and log it as already-saved.
PORTIONINGPRE-LOGGING
SUNDAY 1:50 PM — 10 MINUTES
STOCK YOUR EMERGENCY SNACK ARSENAL
Pre-portion protein snacks for the week: baggies of almonds (1 oz each), individual Greek yogurt cups, string cheese, beef jerky, and protein bars. These live in your work bag, car, desk, and gym bag. No excuses when hunger strikes unexpectedly.
SNACK PREPCONTINGENCY
PRO TIP SECTION 06
NUTRIENT TIMING STRATEGY

While total daily macros matter most, when you eat specific macros can meaningfully amplify performance and recovery — especially around training sessions. Here is the evidence-based framework.

PRE-WORKOUT: CARBS + MODERATE PROTEIN
60–90 minutes before training: 30–50g carbs + 20–30g protein. Keep fats low (under 10g) — they slow gastric emptying and blunt the carb energy spike. Example: rice cakes + whey shake, or oatmeal + egg whites.
PERFORMANCE TIP
🔄
POST-WORKOUT: PROTEIN + FAST CARBS
Within 30–90 minutes post-training: 30–40g protein + 40–60g fast-digesting carbs. This is the most anabolic window of the day. Example: whey protein + white rice, or chocolate milk (the original post-workout drink — 3:1 carbs:protein ratio).
RECOVERY TIP
🌙
BEFORE BED: CASEIN PROTEIN
30–60 minutes before sleep: 30–40g casein protein (cottage cheese, casein powder, or Greek yogurt). Casein digests over 6–8 hours, creating a sustained amino acid release that reduces overnight muscle breakdown — especially critical on a calorie deficit.
RECOVERY TIP
🌅
MORNING: BREAK THE FAST WITH PROTEIN
First meal of the day: Hit 30–40g protein immediately. After 7–9 hours of fasting, your body is in a mild catabolic state. Protein at breakfast halts this quickly, reduces hunger hormones (ghrelin), and sets a strong macro foundation for the day.
MORNING ROUTINE
PRO TIP SECTION 07
HOW TO ADJUST YOUR MACROS

Your initial macro calculation is a hypothesis. Your body’s real-world response is the data. Here is a systematic protocol for adjusting based on results — used by elite coaches across the USA.

Weeks 1–2: Baseline SetupDo NOT adjust yet
Weeks 3–4: First AssessmentCheck weekly avg weight
Adjust by ±100–200 kcal if neededChange carbs first
Every 4–6 weeks: Recalculate TDEEWeight changes = new TDEE
📉
NOT LOSING WEIGHT? DO THIS
First, audit your logging accuracy for 3 days — most people undercount by 20–30% due to cooking oils, sauces, and unmeasured portions. If logging is accurate, reduce calories by 150–200 kcal by cutting carbs (not protein) and reassess after 2 weeks.
📈
NOT GAINING MUSCLE? DO THIS
If the scale has not moved in 2+ weeks on a bulk, add 150–200 kcal via carbohydrates. Check protein intake — it must stay at or above 0.7g per lb of bodyweight. Also verify training progressive overload — you cannot out-eat a poor training program.
PRO TIP SECTION 08
USA SUPPLEMENT STACK GUIDE

Supplements do not replace whole food macros — they fill specific gaps. Here are the only supplements with strong clinical evidence that are widely available and affordable across the USA.

🥤
WHEY PROTEIN — TIER 1
What it does: Closes the protein gap conveniently. US Value Pick: Optimum Nutrition Gold Standard or Costco Kirkland Whey (~$0.80–$1.00 per serving). 1 scoop = 24–25g protein. Non-negotiable if you train seriously.
PROTEIN GAP FILLER
CREATINE MONOHYDRATE — TIER 1
What it does: Increases strength, power output, and muscle cell volume. The most studied supplement in sports nutrition history. US Value Pick: Bulk Supplements or Myprotein (5g/day, any time). Under $20 for 3+ months supply.
PERFORMANCE ENHANCER
🐟
OMEGA-3 FISH OIL — TIER 1
What it does: Reduces inflammation, supports joint health, and improves insulin sensitivity. Most Americans are severely deficient. Target 2–3g combined EPA+DHA/day. US Pick: Nordic Naturals or Costco Fish Oil (~$0.15/day).
HEALTH FOUNDATION
☀️
VITAMIN D3 — TIER 1
What it does: Supports testosterone, immune function, bone density, and mood. Over 40% of Americans are deficient (CDC data). 2,000–5,000 IU daily with a fat-containing meal. Pair with K2 for optimal absorption.
DEFICIENCY FILLER
CAFFEINE — TIER 2
What it does: Improves training performance, fat oxidation, and mental focus. Use 200–400mg 30–45 min pre-workout. Cycle off for 1 week every 8 weeks to prevent tolerance. Black coffee is the most cost-effective delivery method available.
PRE-WORKOUT
😴
MAGNESIUM GLYCINATE — TIER 2
What it does: Most active Americans are depleted in magnesium due to sweating. Critical for sleep quality, muscle relaxation, and insulin sensitivity. 300–400mg before bed. This single supplement noticeably improves sleep depth and recovery.
RECOVERY
PRO TIP SECTION 09
THE 9 BIGGEST MISTAKES AMERICANS MAKE

After working with thousands of athletes, these are the most common and most costly macro tracking errors — and exactly how to fix each one.

01
🥤
NOT TRACKING LIQUID CALORIES
A Starbucks Frappuccino (430 kcal), 2 beers (300 kcal), and a glass of OJ (110 kcal) = 840 invisible calories that destroyed your deficit before you even ate a real meal.
Fix: Log every liquid that contains calories — drinks, protein shakes, milk in coffee, sauces, cooking oils. Water, black coffee, and plain tea are the only free liquids.
02
🍳
FORGETTING COOKING OIL
One tablespoon of olive oil or butter = 120 kcal, 14g fat. Most people use 2–3 tbsp per meal without thinking — that is 240–360 untracked calories per day, or 1,680–2,520 per week.
Fix: Use a kitchen scale to measure oil. Switch to a spray oil (PAM) for low-calorie cooking. Log every drop. This single fix often kick-starts stalled fat loss immediately.
03
📱
USING INACCURATE DATABASE ENTRIES
MyFitnessPal’s user-submitted database contains thousands of wrong entries. “Chicken Breast” can have entries ranging from 50 kcal to 400 kcal for the same 4 oz serving due to user error.
Fix: Always verify with USDA FoodData Central (fdc.nal.usda.gov) — the official US database. Use verified green checkmark entries in apps. When in doubt, scan the barcode of the exact product you are eating.
04
🍽️
EYEBALLING PORTIONS
Research shows people consistently underestimate food portions by 20–40% when eyeballing. What looks like 4 oz of chicken is often 6–7 oz. What looks like 1 cup of rice is often 1.5–2 cups.
Fix: Use a food scale for the first 3–4 months, even for simple foods. Once you have weighed the same items 50+ times, you build accurate portion intuition. Until then, the scale is non-negotiable.
05
🍫
THE “CHEAT DAY” WIPE-OUT
A typical American “cheat day” consumes 4,000–6,000 kcal — wiping out 3–7 days of calorie deficit in a single Sunday of eating. The body cannot out-train a weekly binge.
Fix: Replace “cheat days” with planned higher-calorie refeed days (TDEE + 200–300 kcal, high-carb). This refills muscle glycogen, resets leptin, and prevents diet fatigue — without destroying your week.
06
😴
IGNORING SLEEP — THE HIDDEN MACRO
Getting under 6 hours of sleep increases the hunger hormone ghrelin by 28% and decreases satiety hormone leptin by 18%. Poor sleep makes your deficit dramatically harder to maintain.
Fix: Treat 7–9 hours of sleep as a macro target. Prioritise sleep hygiene: dark room, cool temperature (65–68°F), no screens 60 min before bed, and magnesium glycinate before sleep.
07
🔄
NEVER RECALCULATING AFTER WEIGHT CHANGES
Someone who loses 20 lbs and never recalculates has a new BMR — but keeps eating the original deficit. Their “cut” is now eating at near-maintenance because their TDEE dropped with their bodyweight.
Fix: Recalculate using the Genghis Fitness Macro Calculator every 4–6 weeks or after every 5–10 lb change in bodyweight. Your macros should evolve as your body evolves.
08
🥗
DROPPING FATS TOO LOW ON A CUT
Many Americans cut fat to under 30g/day during a fat loss phase. Below this threshold, testosterone production drops, joints ache, vitamins A/D/E/K become depleted, and mood crashes — leading to abandoning the diet entirely.
Fix: Never drop dietary fats below 0.3g per lb of bodyweight (e.g., 180 lbs = minimum 54g fat/day). Cut carbs before ever cutting fats below this floor. Fats keep you sane, hormonally balanced, and injury-free.
09
🏃
TRYING TO OUT-CARDIO A BAD DIET
Running 3 miles burns approximately 300 kcal — the same as one large Starbucks Frappuccino. Most Americans severely overestimate calories burned through cardio and use exercise as justification to overeat.
Fix: Treat cardio as a bonus tool for cardiovascular health and a small calorie boost — not the primary driver of fat loss. Nutrition controls the deficit. Training builds the muscle. Both are necessary; neither replaces the other.
PRO TIP SECTION 10
BEST MACRO TRACKING APPS IN THE USA

The right app removes friction and makes daily macro logging fast. Here are the top-rated macro tracking apps used by American athletes and coaches in 2025.

📱
MYFITNESSPAL
Largest food database (14M+ entries), barcode scanner, restaurant menu integration. Best for beginners. Free tier is solid; Premium ($19.99/mo) adds macro goals.
🔥
CRONOMETER
Most accurate database (USDA verified entries only). Tracks micronutrients in detail. Preferred by serious athletes and dietitians. Excellent for keto and low-carb tracking.
FREE
🥇
MACROFACTOR
AI-powered adaptive macro coaching. Adjusts your targets weekly based on real weight trends. Gold standard for serious trackers. ~$11.99/mo — worth every dollar.
CARBON DIET COACH
Created by Dr. Layne Norton. Automated check-ins, progressive calorie adjustments, and evidence-based coaching logic built in. ~$14.99/mo.
🍎
LOSE IT!
Clean US-focused interface, excellent restaurant database, meal planning tools, and budget tracking. Strong free tier. Popular with casual trackers and beginners.
FREE + PLUS
🌐
USDA FOODDATA
Not an app — but fdc.nal.usda.gov is the most accurate food database in the US. Use it to verify any entry in your tracking app when accuracy matters most.
FREE (WEB)
⚔ THE WARRIOR’S MACRO TRACKING CHECKLIST
  • Weigh foods raw on a digital kitchen scale for the first 3 months
  • Pre-log meals the night before or morning of — never at the end of the day
  • Hit protein within ±5g every day — this is the highest priority macro
  • Drink ½ oz of water per lb of bodyweight daily (e.g. 200 lbs = 100 oz)
  • Meal prep every Sunday — 2.5 hours buys you 5 days of controlled eating
  • Check the nutrition PDF before eating at any US chain restaurant
  • Recalculate your macros every 4–6 weeks or after every 5–10 lb change
  • Track 7-day averages, not individual days — one rough day means nothing
  • Never drop fats below 0.3g/lb of bodyweight — cut carbs first on a deficit
  • Get 7–9 hours of sleep — sleep is the recovery macro you cannot supplement
  • Take creatine 5g/day — the only performance supplement with universal evidence
  • Adjust by ±100–200 kcal only after 2 full weeks of consistent tracking data
⚔ Expert Q&A — USA Edition

MACRO & TDEE FAQS
BASED ON US NUTRITION GUIDELINES

35 of the most-asked macro questions from Google, Reddit, Quora, and real Genghis Fitness users — answered with expert-level detail, research-backed numbers, and USA-specific context.

35+
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CATEGORY 01
MACRO BASICS
Q01 – Q05
Macros (macronutrients) are the three main nutrients your body uses for energy: protein, carbohydrates, and fats. Every food you eat is made up of some combination of these three. Unlike micronutrients (vitamins, minerals) which are needed in small amounts, macros are needed in large quantities — hence “macro.”
Why people track them: By controlling your macro intake — not just total calories — you control your body composition. Two people eating the same 2,000 calories can have radically different results: one gains muscle, one stores fat, depending on their protein/carb/fat split.
The caloric value of each macro: Protein = 4 kcal/g | Carbs = 4 kcal/g | Fats = 9 kcal/g. All your calories come from these three sources (plus alcohol at 7 kcal/g).
SOURCE: USDA FEDERAL DIETARY GUIDELINES 2020–2025 | THE CONVERSATION (EXERCISE & NUTRITION SCIENTIST)
Counting calories only tells you how much energy you are consuming. Tracking macros tells you where that energy is coming from — which directly shapes your body composition.
  • Calories only: 2,000 kcal of junk food = same weight outcome as 2,000 kcal of lean protein + vegetables — but vastly different body composition, hunger levels, and performance.
  • Macro tracking: Ensures protein is high enough to preserve/build muscle, carbs fuel training, and fats support hormones — all while hitting a caloric target.
Key insight: If you hit all your macro targets, you automatically hit your calorie target — because macros add up to total calories. Tracking macros is calorie counting with precision.
SOURCE: VITALURA LABS MACRO GUIDE | ONLINE DIETITIAN ACADEMY
MacroPrimary RoleSecondary RoleDeficiency Risk
ProteinBuild & repair muscle tissue, enzymes, hormonesImmune function, satiety, thermic effectMuscle loss, poor recovery, immune issues
CarbsPrimary fuel for brain & high-intensity exerciseSpare protein, glycogen storage, moodFatigue, low performance, brain fog
FatsHormone production, cell membranes, fat-soluble vitamins (A,D,E,K)Long-duration energy, joint lubricationLow testosterone, poor recovery, dry skin
SOURCE: MD ANDERSON CANCER CENTER | RUNNERS WORLD NUTRITION
Yes, largely. IIFYM — popularized in the USA around 2012 and used by over 10 million people — is simply flexible dieting based on hitting macro targets without restricting specific foods. If a food fits within your daily protein/carb/fat budget, you can eat it.
Important nuance: IIFYM does NOT mean eating junk food all day if it “fits.” Elite coaches emphasize that 80–90% of your calories should come from whole, nutrient-dense foods, with 10–20% flexibility for social eating, treats, and sanity. Micronutrient gaps matter even if macros are perfect.
SOURCE: IIFYM.COM — 10M+ USERS SINCE 2012
Most people need to track actively for 3–6 months. After that, you build what coaches call “macro literacy” — the ability to eyeball portions and intuitively understand the nutritional profile of your meals without logging every bite.
  • Track strictly for the first 90 days to build portion intuition
  • Switch to spot-checking (2–3 days per week) after 90 days
  • Revert to full tracking during aggressive cut/bulk phases
  • Most experienced athletes track loosely by feel, with occasional audit weeks
SOURCE: WORKING AGAINST GRAVITY | VITALURA LABS
🧮
CATEGORY 02
CALCULATING YOUR MACROS
Q06 – Q12
The Mifflin-St Jeor equation (1990) is the gold standard preferred by the Academy of Nutrition and Dietetics for non-obese adults. Harris-Benedict (1919, revised 1984) tends to overestimate BMR by 5–10% compared to modern measurements.
FormulaYearAccuracyBest For
Mifflin-St Jeor1990±82% within 10%Most adults (recommended)
Revised Harris-Benedict1984±68% within 10%Historical reference
Katch-McArdle1975Most accurate if body fat % knownAthletes with DEXA data
SOURCE: ACADEMY OF NUTRITION AND DIETETICS | ATHLEAN-X MACRO SCIENCE
When in doubt, choose the lower of the two options and observe the scale for 2–3 weeks. It is much easier and psychologically safer to increase calories (if you’re losing too fast) than to realise you’ve been eating in a surplus for weeks.
Activity LevelMultiplierWho This Is
Sedentary× 1.2Desk job, no exercise, minimal walking
Lightly Active× 1.3751–3 gym sessions/week, light walking
Moderately Active× 1.553–5 sessions/week, active job (teacher, nurse)
Very Active× 1.7256–7 hard sessions/week or physical labour job
Extremely Active× 1.92× daily training, elite athlete, construction
USA context: Most American gym-goers overestimate activity level. If you train 4× per week but sit at a desk 8 hours/day, you are likely Lightly to Moderately Active — not Very Active.
SOURCE: IIFYM MACRO CALCULATOR | RUNNERS WORLD NUTRITION
Grams are the target; percentages are just how you arrived at those grams. Apps like MyFitnessPal display both, but they represent the same goal — hitting 25% protein on 2,400 kcal is the same as hitting 150g of protein. Work towards the gram targets, not the percentages.
Exception: When adjusting calories (e.g., during a cut), percentages help you maintain macro ratios as total calories drop. But day-to-day — count grams.
SOURCE: LAUREN GLEISBERG MACRO TRACKING Q&A | ONLINE DIETITIAN ACADEMY
Use this 4-step method used by competitive bodybuilders:
  • Weigh every ingredient raw (before cooking) and log each individually in your app
  • After cooking, weigh the total finished dish (e.g., the entire pot of chili = 1,200g cooked)
  • Divide the total macro numbers by the total cooked weight to get macros per gram
  • Each time you serve yourself, weigh your portion and multiply — or log as saved recipe servings in your app
Shortcut: MyFitnessPal and Cronometer both have a “Recipe Creator” feature. Input all raw ingredients once, set the number of servings, and log a serving every time you eat it. Takes 5 minutes once, then 10 seconds per meal.
SOURCE: REDDIT r/MEALPREPSUNDAY | MACROSINC.NET
Recalculate your macros every 4–6 weeks or after every 5–10 lb (2–5 kg) change in bodyweight. Your BMR and TDEE are calculated from your current weight — as your weight changes, so does your caloric need.
Real example: A 220 lb man who loses 15 lbs without recalculating is now eating what was once a 400 kcal/day deficit at zero deficit — because his TDEE dropped by roughly 300–400 kcal. This is the #1 reason fat loss stalls after initial progress.
SOURCE: REDDIT r/EATCHEAPANDHEALTHY | MACROS INC CALCULATOR
The Mifflin-St Jeor formula requires metric units. Here are the exact conversion formulas:
Weight: lbs ÷ 2.2046 = kg  |  Example: 185 lbs ÷ 2.2046 = 83.9 kg

Height: (feet × 12 + inches) × 2.54 = cm  |  Example: 5′10″ = (5×12+10) × 2.54 = 177.8 cm
The Genghis Fitness Macro Calculator handles this conversion automatically when you enter US imperial units — you never need to do the math manually.
SOURCE: GENGHIS FITNESS MACRO CALCULATOR
Macro calculators using Mifflin-St Jeor are accurate within ±10% for approximately 82% of people. That means for a 2,500 kcal/day calculation, your real TDEE is likely between 2,250 and 2,750 kcal. This is close enough to be an excellent starting point.
Treat the output as a hypothesis, not a prescription. Track consistently for 2 weeks, weigh yourself daily (use the average), and adjust by 150–200 kcal if the scale isn’t moving as expected. Real-world data always beats any formula.
Calculators cannot account for: sleep quality, stress hormones, medication effects, metabolic history, or individual gut microbiome variation.
SOURCE: KNOWNWELL HEALTH | IIFYM.COM — 10M+ CALCULATION DATABASE
🥩
CATEGORY 03
PROTEIN QUESTIONS
Q13 – Q18
The variation comes from different goals. Here are the evidence-based ranges:
GoalProtein TargetExample (180 lbs)
General health (sedentary)0.36g per lb (USDA min)~65g/day
Active individuals (gym 3–4×/week)0.6–0.8g per lb108–144g/day
Muscle building / lean bulk0.8–1.0g per lb144–180g/day
Cutting / fat loss (muscle preservation)1.0–1.2g per lb180–216g/day
Advanced athletes / competitors1.0–1.4g per lb180–252g/day
USA context: The USDA’s minimum recommendation (46g for women, 56g for men) is designed to prevent deficiency — not optimize body composition. Anyone who trains seriously should target at least 0.7g per lb of bodyweight.
SOURCE: USDA DIETARY GUIDELINES 2020–2025 | THE CONVERSATION — NUTRITION SCIENTIST
The “30g limit” is a myth — or more accurately, an oversimplification. Your body can absorb and utilise protein from a single large meal; it just does so more slowly. Muscle protein synthesis (MPS) is most efficiently stimulated by distributing protein across multiple meals, but there is no hard ceiling where excess protein is “wasted.”
Current research consensus (2024): Aim for 0.4g/kg (0.18g/lb) of bodyweight per meal as the minimum effective dose per sitting to maximally stimulate MPS. For a 200 lb person, that is ~36g per meal — which is why 30–40g per meal is the practical guideline, not a physical cap.
SOURCE: SPORTS NUTRITION RESEARCH — LAYNE NORTON, PhD | CARBON DIET COACH
No — whey protein is not a steroid. It is simply a protein derived from milk during cheese production. It is food. The kidney concern comes from old, flawed studies on people with pre-existing kidney disease — not healthy individuals.
Research consensus: High protein intake (up to 2.2g/kg/day) does NOT damage healthy kidneys. Multiple long-term studies on resistance-trained athletes show no adverse renal effects. If you have kidney disease, consult a doctor — but for healthy Americans, whey protein is safe and effective.
SOURCE: JOURNAL OF NUTRITION AND METABOLISM | ATHLEAN-X SCIENCE REVIEWS
FoodServingProteinCaloriesNotes
Canned tuna (in water)5 oz can25g110 kcal~$1.00 at Walmart
Non-fat Greek yogurt (Fage)1 cup20g120 kcalKroger / Trader Joe’s
Cottage cheese (low-fat)½ cup14g90 kcalCasein protein — best at night
93% lean ground turkey4 oz raw22g160 kcalMore flavor than chicken
Liquid egg whites½ cup13g63 kcalAdd to oatmeal, scrambles
Edamame (shelled)½ cup9g95 kcalPlant-based complete protein
Beef jerky (low sodium)1 oz9g80 kcalPortable snack, most US gas stations
SOURCE: USDA FOODDATA CENTRAL | GENGHIS FITNESS USA GROCERY GUIDE
Yes — but it requires more planning than an omnivore diet. The keys are:
  • Combine incomplete proteins: Rice + beans, peanut butter + whole wheat = complete amino acid profiles
  • Prioritise complete plant proteins: Edamame, tofu, tempeh, seitan, quinoa
  • Supplement strategically: Pea + rice protein blends closely match whey’s amino acid profile
  • Use high-protein dairy (vegetarians): Greek yogurt, cottage cheese, eggs
Realistic target for vegans: Hitting 1.0g/lb is achievable but requires intentional planning. Most vegan athletes target 0.7–0.9g/lb with a pea/rice protein supplement to bridge the gap.
SOURCE: EAT-MACROS.COM FAQ | OPTIMISING NUTRITION MACRONUTRIENT FAQ
In theory, yes — excess calories from any source can cause fat gain. However, protein is the hardest macro to convert to body fat due to:
  • Highest thermic effect of food (TEF): 20–30% of protein calories are burned in digestion itself (vs. 5–10% for carbs, 0–3% for fats)
  • Strongest satiety signal: Protein suppresses ghrelin (hunger hormone) more effectively than any other macro
  • Gluconeogenesis is inefficient: Converting protein to fat/glucose requires significant energy expenditure
Practical reality: Overeating protein while in a calorie surplus will contribute to some fat gain — but far less gram-for-gram than overeating carbs or fats in the same surplus.
SOURCE: RUNNERS WORLD NUTRITION | BODYBUILDING.COM MACRO SCIENCE
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CATEGORY 04
WEIGHT LOSS & MUSCLE GAIN
Q19 – Q24
The math: 1 lb of fat = approximately 3,500 kcal. Based on your deficit:
Daily DeficitWeekly DeficitWeekly Weight LossVerdict
250 kcal1,750 kcal~0.5 lbsSustainable (slow)
500 kcal3,500 kcal~1 lbOptimal (recommended)
750 kcal5,250 kcal~1.5 lbsAggressive (acceptable)
1,000+ kcal7,000+ kcal2+ lbsHigh muscle loss risk
Genghis Fitness recommendation: Target 0.5–1% of bodyweight per week. For a 200 lb person, that is 1–2 lbs/week maximum. Faster than this and you risk losing significant lean muscle mass.
SOURCE: ONLINE DIETITIAN ACADEMY | MYHUMMUSFIT WEIGHT LOSS MACRO GUIDE
Calories determine whether you lose weight. Macros determine what you lose.
  • In a 500 kcal deficit with low protein (50g): you lose weight but lose significant muscle alongside fat
  • In the same 500 kcal deficit with high protein (200g): you lose predominantly fat while preserving or even building muscle
Scale vs. body composition: Two people can lose identical scale weight but look completely different — one loses fat and muscle (small deficit, low protein), one loses mostly fat (same deficit, high protein, resistance training).
SOURCE: KNOWNWELL HEALTH — “DO MACROS MATTER MORE THAN CALORIES?” | HEALTHLINE NUTRITION
For fat loss, a high-protein split consistently outperforms other approaches in the research:
Recommended Fat Loss Split: 40–50% Protein | 25–35% Carbs | 20–25% Fats
Example on 2,200 kcal: 220–275g Protein | 138–192g Carbs | 49–61g Fats
Why high protein during a cut: preserves muscle mass, highest satiety per calorie, highest thermic effect (burns 20–30% of its own calories in digestion), and prevents the dreaded “skinny fat” outcome of losing both fat and muscle simultaneously.
SOURCE: HEALTHLINE — BEST MACRONUTRIENT RATIO FOR WEIGHT LOSS | BODYBUILDING.COM
Yes — in specific conditions. Body recomposition (simultaneous fat loss and muscle gain) is most achievable for:
  • Beginners (first 6–12 months of training) — “newbie gains” allow significant recomp
  • Returning trainees who have taken 6+ months off and have muscle memory
  • Overweight individuals with large fat stores (body can fuel muscle building from fat)
Protocol for recomp: Eat at maintenance calories (TDEE × 1.0), high protein (1.0g/lb+), and train with progressive overload. The scale may not move, but body fat% drops and muscle mass increases. Progress is measured in mirror and strength gains — not the scale.
SOURCE: GENGHIS FITNESS REAL USA EXAMPLES — ASHLEY’S MAINTENANCE PROFILE
A fat loss plateau has 4 common causes:
  • Tracking inaccuracy creep: After weeks of tracking, portion sizes drift upward, cooking oil goes unlogged, and sauces go untracked. A 3-day audit with a food scale almost always reveals 200–400 hidden calories per day.
  • TDEE adaptation: As you lose weight, your BMR drops. Recalculate with your new weight — your old deficit may now be at maintenance.
  • Reduced NEAT: Your body subconsciously reduces non-exercise movement (fidgeting, standing, spontaneous walks) in response to caloric restriction. This can cut 200–300 kcal/day from your real TDEE.
  • Water retention masking fat loss: You may be losing fat but retaining water due to new training stimulus, increased carbs, or hormonal fluctuations. Use a 10–14 day average of weight — not daily readings.
SOURCE: WORKING AGAINST GRAVITY MACRO FAQ | REDDIT r/EATCHEAPANDHEALTHY
The optimal surplus depends on your training experience level:
Experience LevelSurplusExpected Muscle GainExpected Fat Gain
Beginner (0–1 yr)+200–300 kcal/day1–2 lbs/monthMinimal
Intermediate (1–3 yrs)+200–250 kcal/day0.5–1 lb/monthLow
Advanced (3+ yrs)+150–200 kcal/day0.25–0.5 lb/monthVery low
Genghis Fitness calculator uses ×1.10 (10% surplus) for lean bulking — which sits in the optimal range for most natural trainees. Anything above 20% surplus typically results in excessive fat gain with diminishing muscle-building returns.
SOURCE: MACROS INC | DR. LAYNE NORTON — CARBON DIET COACH METHODOLOGY
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CATEGORY 05
TRACKING & TOOLS
Q25 – Q28
AppBest ForDatabase AccuracyCost
CronometerMaximum accuracy, micronutrientsHighest (USDA-verified)Free
MacroFactorAI-adaptive coaching, serious athletesExcellent + adaptive~$11.99/mo
MyFitnessPalLargest database, beginnersGood (verify entries)Free/Premium
Carbon Diet CoachEvidence-based automated coachingExcellent~$14.99/mo
Lose It!US restaurant chains, casual usersGoodFree/Plus
SOURCE: REDDIT r/FITMEALS | LAURENGLEISBERG.COM TOP MACRO APPS
A food scale is significantly more accurate than measuring cups, especially for calorie-dense foods. 1 cup of oats measured loosely vs. tightly packed can differ by 30–40 calories. For liquids, cups work fine. For solids — especially proteins, grains, and nuts — always use a scale.
Recommendation: An OXO digital kitchen scale (~$20–30 on Amazon or Target) is the single best investment for macro tracking accuracy. It pays for itself in the first week by preventing over- or under-eating.
SOURCE: REDDIT r/EATCHEAPANDHEALTHY — MACRO PRECISION THREAD
It depends on your diet approach:
  • Standard / balanced tracking: Use total carbs. Most US nutrition labels list total carbs as the standard metric.
  • Ketogenic diet tracking: Use net carbs (total carbs − dietary fiber). Fiber is not digested and doesn’t raise blood sugar. For keto, the 20–50g net carb threshold is what matters, not total carbs.
  • Low-carb diet: Either works; most practitioners use net carbs for flexibility
Net Carb Formula: Total Carbohydrates − Dietary Fiber = Net Carbs
Example: 30g total carbs − 8g fiber = 22g net carbs
SOURCE: OPTIMISING NUTRITION MACRONUTRIENTS FAQ
Use the “best guess with conservative estimates” method used by flexible dieters:
  • Identify the closest match in your app (e.g., “homemade pasta with meat sauce”) and use that entry
  • Estimate your portion size visually: your fist ≈ 1 cup | your palm ≈ 3–4 oz protein | your thumb ≈ 1 tbsp fat
  • Eat strategically before the event: Have a high-protein snack beforehand so you arrive less hungry and make better choices
  • Don’t abandon the day: Even a rough 70% accurate log is better than no log at all — it prevents the mental “screw it” spiral
Professional tip: On social event days, increase protein at breakfast and lunch, eat lighter than usual, and save 30–40% of your calories for the evening — this buffers for unknowns without derailing your week.
SOURCE: WORKING AGAINST GRAVITY TOP 10 MACRO QUESTIONS | IIFYM FLEXIBLE DIETING GUIDE
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CATEGORY 06
USA LIFESTYLE QUESTIONS
Q29 – Q32
Yes — every major US chain publishes full nutrition data. The key is knowing what to order:
  • Chipotle: Double chicken bowl, black beans, salsa, no cheese/sour cream = ~640 kcal, 65g protein
  • McDonald’s: Egg McMuffin + black coffee = ~300 kcal, 18g protein — solid emergency breakfast
  • Subway: Double turkey footlong, all veg, mustard = ~780 kcal, 70g protein
  • Chick-fil-A: Grilled Chicken Sandwich (no sauce) + side salad = ~380 kcal, 42g protein
Pro tip: Use the restaurant’s app or website to build your order nutritionally before you arrive. Chipotle, McDonald’s, and Starbucks all have interactive nutrition calculators on their websites.
SOURCE: GENGHIS FITNESS PRO TIPS — USA RESTAURANT MACRO HACKS
Alcohol is technically a 4th macronutrient at 7 kcal/gram — but most tracking apps don’t have an “alcohol” macro category. Here’s how professionals handle it:
DrinkCaloriesTrack As
Regular beer (12 oz)~150 kcalSplit between carbs (15g) and “empty” calories
Light beer (12 oz)~100 kcal~10g carbs
Red/white wine (5 oz)~120–125 kcal~5g carbs
Spirits (1.5 oz / 1 shot)~97 kcalLog as fat (11g) — closest macro profile
Cocktails (mixed drinks)200–400+ kcalLog carbs + fat depending on mixer
Genghis Fitness stance: Beyond the calories, alcohol impairs muscle protein synthesis for 24–48 hours post-consumption, disrupts sleep quality (even 2 drinks), and lowers inhibitions around food choices. Track it — but understand the full cost extends beyond the macro numbers.
SOURCE: IIFYM ALCOHOL TRACKING GUIDE | GENGHIS FITNESS PRO TIPS
A single high-calorie day will not derail a month of consistent tracking. The average American Thanksgiving meal contains 2,500–4,500 kcal — but one day’s surplus is metabolically insignificant compared to weeks of consistent deficit or maintenance.
  • Pre-event strategy: Eat high-protein, lower-calorie meals in the 1–2 days before
  • Day-of strategy: Eat a protein-rich breakfast before the event to reduce hunger and improve food choices
  • Damage control during: Fill your plate with turkey (protein) and vegetables first, then add sides in controlled portions
  • Post-event: Return to your normal macros the very next day — do not “start over Monday”
The math: Even a 3,000 kcal Thanksgiving overage = less than 0.4 lbs of fat stored. Consistent daily tracking for the other 364 days matters infinitely more than one holiday meal.
SOURCE: WORKING AGAINST GRAVITY HOLIDAY MACRO GUIDE | LAUREN GLEISBERG FLEXIBLE DIETING
Absolutely — Costco is one of the most cost-effective sources for macro-friendly staples in the USA. Best Costco macro buys:
  • Kirkland Whey Protein (5 lb bag) — among the best protein cost-per-serving in the US (~$0.80/serving)
  • Boneless skinless chicken breast (6–10 lb packs) — cheapest per-lb chicken available
  • Canned tuna multipacks — excellent protein per dollar ratio
  • Kirkland Omega-3 Fish Oil — pharmaceutical grade, 400 softgels for ~$20
  • Raw almonds / mixed nuts — significant cost saving vs. retail
  • Fage 0% Greek Yogurt (large tubs) — high protein, low cost per cup
SOURCE: GENGHIS FITNESS USA GROCERY GUIDE | PRO TIPS SECTION
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CATEGORY 07
ADVANCED MACRO QUESTIONS
Q33 – Q35
Carb cycling is an advanced strategy where you alternate between high-carb days (typically on training days) and low-carb days (rest days). The logic: carbs fuel performance on workout days, and reduced carbs on rest days maintain the weekly caloric deficit without compromising training.
Day TypeCarb TargetProteinFats
High training day2.0–2.5g per lb BW1.0g per lb0.3g per lb
Low/rest day0.5–1.0g per lb BW1.0–1.2g per lb0.4–0.5g per lb
Verdict: Carb cycling works — but it’s complex and not necessary for beginners. Master consistent daily macro tracking for 6–12 months first. Carb cycling is an intermediate-to-advanced tool that provides marginal additional benefit over consistent standard tracking for most people.
SOURCE: OPTIMISING NUTRITION MACRO FAQ | IIFYM ADVANCED DIETING GUIDE
For most people tracking macros, keeping the same macros 7 days/week is simpler and equally effective — daily consistency beats complexity. However, there are two common adjustments for advanced trainees:
  • Protein stays the same 7 days: Muscle protein synthesis (recovery) happens on rest days — protein is arguably more important on rest days than training days
  • Carbs can be reduced 10–20% on rest days: You need less glycogen replenishment when not training. Drop 30–50g carbs and reallocate to healthy fats
  • Calorie total may drop 150–250 kcal on rest days: Lower energy expenditure justifies slightly lower intake
SOURCE: RUNNERS WORLD NUTRITION — STRENGTH VS CARDIO MACROS | WAG COACHING
Yes — significantly. This is why two people with identical macro plans can see different results. The hormonal environment matters:
  • Cortisol (stress hormone): Chronically elevated cortisol promotes visceral fat storage, breaks down muscle tissue for energy, and increases cravings for high-calorie foods
  • Sleep deprivation: Under 6 hours raises ghrelin (hunger +28%), lowers leptin (satiety −18%), reduces testosterone, and increases insulin resistance — making the same deficit harder to maintain and less effective
  • Water retention: High cortisol and poor sleep cause water retention that masks fat loss on the scale for 5–14 days, creating false “plateau” appearances
The bottom line: You cannot fully out-track a chronically stressed, sleep-deprived lifestyle. Macros, sleep, stress management, and progressive training are a system — all four components must function for optimal results. Macro tracking is the most controllable lever — maximise it, then work on the others.
SOURCE: JENNIE MACRO TRACKING FAQ SUBSTACK | KNOWNWELL HEALTH — MACRO LIMITATIONS
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MEDICAL & LEGAL DISCLAIMER (FDA & FTC NOTICE)

Read this carefully before using your macro results to make health, training, or dietary decisions. This page exists to protect you and to be 100% transparent about what this tool can — and cannot — do.

LAST UPDATED: MARCH 2026  |  EFFECTIVE DATE: JANUARY 2025  |  JURISDICTION: UNITED STATES OF AMERICA
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IMPORTANT — READ BEFORE USING YOUR RESULTS

The Genghis Fitness Macro Calculator provides general educational estimates only. It is not a substitute for professional medical advice, a registered dietitian consultation, or a licensed physician’s recommendation. Results produced by this tool are based on mathematical formulas and do not account for every individual health variable. Always consult a qualified healthcare provider before making significant changes to your diet or exercise regimen.

SECTION 01
CORE DISCLAIMERS

These six core disclaimers govern your use of the Genghis Fitness Macro Calculator, its results, and any content associated with it. Using this calculator constitutes your agreement with all statements below.

DISCLAIMER 01
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NOT MEDICAL ADVICE
The results generated by this Macro Calculator are not medical advice of any kind. Nothing on this page or produced by this tool constitutes a diagnosis, treatment plan, prescription, or medical recommendation. Genghis Fitness is a fitness content and education platform, not a healthcare provider. If you have a medical condition — including but not limited to diabetes, cardiovascular disease, eating disorders, kidney disease, or metabolic conditions — do not use this tool without first consulting your physician.
DISCLAIMER 02
📐
ESTIMATES ONLY — NOT EXACT SCIENCE
This calculator uses established scientific formulas (Mifflin-St Jeor, Harris-Benedict, Katch-McArdle) to estimate your caloric and macronutrient needs. These are population-level averages derived from peer-reviewed research — they are not lab-measured values specific to your individual metabolism, hormones, gut microbiome, or genetic profile. Your actual energy expenditure may differ by ±200–500 calories per day from any calculated estimate. Treat all results as a starting point, not a final prescription.
DISCLAIMER 03
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INDIVIDUAL RESULTS MAY VARY
No two bodies are the same. Macro targets that produce excellent results for one individual may be inappropriate for another, even at the same weight, height, age, and activity level. Factors including sleep quality, stress hormones (cortisol), gut health, thyroid function, medication use, menstrual cycle phase, insulin sensitivity, and training history all affect how your body processes and utilises macronutrients. Genghis Fitness makes no guarantee of specific weight loss, muscle gain, or performance improvements from following these estimates.
DISCLAIMER 04
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CONSULT A QUALIFIED PROFESSIONAL
Before starting any new diet or nutrition protocol based on this calculator, we strongly recommend consulting:
  • A Registered Dietitian (RD) or Registered Dietitian Nutritionist (RDN)
  • A licensed physician or sports medicine doctor
  • A certified personal trainer (CPT) for training structure
  • An endocrinologist if you have metabolic or hormonal conditions

This is especially critical for pregnant or breastfeeding individuals, minors under 18, seniors over 65, and individuals with a history of eating disorders.
DISCLAIMER 05
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NO LIABILITY FOR OUTCOMES
Genghis Fitness, its owners, employees, contributors, affiliates, and partners accept no responsibility or liability for any health outcomes, injuries, adverse reactions, or negative consequences — physical, psychological, or financial — that arise from the use of, or reliance upon, the results generated by this calculator. Use of this tool is entirely at your own risk. By using this calculator, you acknowledge that you have read, understood, and agreed to this limitation of liability.
DISCLAIMER 06
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FORMULA ACCURACY & UPDATES
The formulas used in this calculator are based on publicly available, peer-reviewed research and current nutrition science consensus. However, nutritional science evolves. Genghis Fitness reserves the right to update, adjust, or change calculator formulas at any time without prior notice. The current version uses formulas verified against USDA Dietary Guidelines for Americans 2020–2025 and ACSM (American College of Sports Medicine) recommendations.

SECTION 02
REGULATORY & FDA NOTICE

This section covers our compliance posture with US federal regulatory standards including the Food and Drug Administration (FDA) and Federal Trade Commission (FTC) guidelines for digital health tools.

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The statements and results generated by this Macro Calculator have not been evaluated by the Food and Drug Administration (FDA). This tool is not intended to diagnose, treat, cure, or prevent any disease or health condition. Any nutritional guidance, macro target, or calorie recommendation produced by this calculator is for general health education and informational purposes only and does not constitute a health claim under 21 CFR Part 101.

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SECTION 03
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SECTION 04
WHO SHOULD NOT USE THIS CALCULATOR

While this tool is designed to be safe and helpful for most healthy adults in the USA, the following individuals should seek professional medical supervision before using these results.

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PREGNANT OR BREASTFEEDING INDIVIDUALS
Caloric and macro needs during pregnancy and lactation are significantly different and change week by week. Do not use general macro calculations during pregnancy without explicit guidance from your OB-GYN or a prenatal registered dietitian.
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CHILDREN & ADOLESCENTS UNDER 18
Growing bodies have unique nutritional requirements that standard adult calculators do not address. Children and teenagers should have nutrition plans designed by a pediatric dietitian or pediatrician — not a general-purpose online calculator.
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INDIVIDUALS WITH EATING DISORDERS
Calorie-counting and macro-tracking tools can be harmful for individuals with or recovering from anorexia, bulimia, binge eating disorder, or orthorexia. If you have a history of disordered eating, please consult a clinical psychologist and RD before tracking macros.
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INDIVIDUALS WITH CHRONIC CONDITIONS
People living with Type 1 or Type 2 diabetes, chronic kidney disease (CKD), liver disease, cardiovascular conditions, thyroid disorders, or PKU require medically supervised nutrition plans. Generic macro ratios may be dangerously inappropriate for these populations.

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TRANSPARENCY & EDITORIAL INDEPENDENCE

Genghis Fitness is an independent fitness education platform dedicated to simplifying nutrition science for everyday athletes across the United States. Unlike supplement brands or diet programs with financial incentives, our Macro Calculator methodology is 100% unbiased, built on peer-reviewed formulas published in 2025–2026 nutrition research and aligned with guidelines from the USDA, ACSM, and the National Institutes of Health (NIH).

Science-Verified Formulas 2026
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