Health & Fitness Calculators

6 free health and fitness calculators — BMI, calories, body fat, macros & more. Clinically validated formulas.

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BMI Calculator
Body Mass Index with visual gauge and healthy weight range.
WeightHealth
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Calorie Calculator
TDEE & daily calorie needs for weight loss, gain or maintenance.
TDEEDiet
Calculate →
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Body Fat Calculator
US Navy Method body fat percentage for men and women.
Navy MethodBody Fat
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Ideal Weight
Find your ideal weight using Hamwi, Devine, Miller & Robinson formulas.
Ideal Weight
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Macro Calculator
Daily protein, carbs & fat targets for keto, low-carb or balanced diets.
MacrosKeto
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TDEE Calculator
Total Daily Energy Expenditure for your activity level and goal.
TDEEEnergy
Calculate →