Health & Fitness calculators

Calorie targets, BMI, BMR, macros, body fat, water intake — backed by accepted clinical formulas.

Calculate your Body Mass Index from height and weight.

Estimate Basal Metabolic Rate — the calories your body burns at rest.

Calculate Total Daily Energy Expenditure — your real daily calorie burn.

Plan a sustainable calorie deficit for fat loss.

Get your daily protein, fat, and carb targets in grams.

Estimate body fat percentage using the US Navy method.

Calculate your ideal weight range using the Devine formula.

Estimate how much water you should drink each day.