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Free Macro Calculator

Get your personalized protein, carb, and fat targets based on the Mifflin-St Jeor & Katch-McArdle equations.

Step 1 of 4
Your Details

Baseline measurements used to estimate your metabolic rate.

Step 2 of 4
Activity Level

Be honest — most people overestimate. Your desk job counts more than your gym sessions.

🪑
Sedentary
Desk job, minimal walking.
🚶
Lightly Active
Light workouts 1-3 days/week.
🏃
Moderately Active
Exercise 3-5 days/week.
🏋️
Very Active
Hard training 6-7 days/week.
Extremely Active
2x/day training or intense labor.
Step 3 of 4
Your Goal

What are you primarily trying to achieve right now?

🔥
Fat Loss
Sustainable 20% deficit.
Aggressive Cut
30% deficit. Short-term only.
⚖️
Maintain
Stay where you are.
💪
Muscle Gain
Lean 10% surplus.
Step 4 of 4
Preferences

Fine-tune your macro split and meal structure.

Your Daily Macros

kcal/day
Total Daily Target
grams
Protein
grams
Carbs
grams
Fat

Protein

—%

Carbs

—%

Fat

—%

🍽️ Per-Meal Breakdown

MealCaloriesProteinCarbsFat

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📐 Show Me The Math
This calculator provides estimates based on the Mifflin-St Jeor and Katch-McArdle equations for generally healthy adults. Not medical advice. Results are starting points that may need adjustment. Consult a healthcare provider before significant dietary changes.