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Nutrition numbers, made precise.
Free, science-based calculators for nutrition. Start with BMR or TDEE, then flow straight into your calorie and macro targets — no re-typing your stats.
Step 1 — Find your baseline
BMR Calculator
Your resting metabolic baseline — the number every other calculator builds on.
Calculate nowTDEE Calculator
BMR plus activity — your full daily maintenance calories.
Calculate nowStep 2 — Set your calorie target
Calorie Deficit
Turn your maintenance calories into a sustainable fat-loss target.
Calculate nowCalorie Surplus
Lean bulk targets for muscle gain without excess fat.
Calculate nowStep 3 — Build your plate