Health & Fitness Calculators

BMI, calories, body fat and other everyday health numbers. 6 free tools, no account needed.

BMI Calculator

Work out your body mass index from your height and weight, see your category, and find the healthy weight range for your height.

Estimate how many calories your body burns at complete rest, using the three most widely used BMR formulas side by side.

Measure your neck, waist and (for women) hips to estimate body fat percentage, fat mass and lean mass.

Estimate your daily calorie needs (TDEE) and get simple targets for keeping, losing or gaining weight.

See the healthy weight range for your height, plus the results of the four best-known ideal body weight formulas side by side.

Work out an estimated due date and see how far along you are, with the dates each trimester begins.