BMI, body fat percentage, ideal weight, BMR, TDEE, lean mass, and waist-to-hip ratio calculators.
Calculate your Body Mass Index (BMI) to see where you fall on the underweight-to-obese scale. BMI uses your height and weight to estimate body fat.
Estimate your body fat percentage using the U.S. Navy method. All you need is a measuring tape and a few circumference measurements.
Find your ideal body weight using four well-known formulas: Devine, Robinson, Miller, and Hamwi. Compare results to find a healthy target.
Calculate your Basal Metabolic Rate — the number of calories your body burns at complete rest just to keep you alive.
Calculate your Total Daily Energy Expenditure — the total calories you burn per day including all activity. Essential for any diet or fitness goal.
Calculate your lean body mass — everything in your body that is not fat, including muscle, bones, organs, and water.
Calculate your waist-to-hip ratio (WHR) to assess how your body distributes fat. WHR is a key indicator of cardiovascular and metabolic health risk.