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● Fitness
Fitness calculators
BMI, body fat, energy expenditure, strength — the math behind training and health.
- BMI calculatorBody Mass Index — height/weight ratio with healthy range.
- Body fat % calculatorNavy method body composition with fat-mass and lean-mass split.
- TDEE calculatorTotal Daily Energy Expenditure with goal-based macro split (cut, maintain, bulk).
- One-rep max calculatorEstimate your 1RM from any sub-max set, across seven proven formulas.
- Macro calculatorSplit your daily calories into optimal protein, fat, and carbs by goal.