Calorie & Health Calculator
Calculate BMR, TDEE, macros, ideal weight, and body fat percentage.
Life Ninja
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About this tool
Comprehensive health calculator using Mifflin-St Jeor equation. Calculate BMR, TDEE, macro breakdown, ideal weight range, and body fat percentage.
Frequently Asked Questions
Your daily calorie needs depend on your age, sex, height, weight, and activity level. Enter your details and the calculator computes your BMR (Basal Metabolic Rate) and TDEE (Total Daily Energy Expenditure). Eat below TDEE to lose weight, above to gain.