Health & Fitness
Calculate BMI, BMR, daily calorie needs, body fat percentage, ideal weight, and plan weight loss or gain goals — all backed by established formulas.
Calculate your Body Mass Index from height and weight, with your weight category and a healthy weight range.
Open calculatorBMR CalculatorEstimate your Basal Metabolic Rate — the calories your body burns at rest — using the Mifflin-St Jeor equation.
Open calculatorTDEE CalculatorCalculate your Total Daily Energy Expenditure by combining your BMR with your activity level.
Open calculatorCalorie CalculatorFind your daily calorie target for maintaining, losing, or gaining weight based on your activity level.
Open calculatorBody Fat CalculatorEstimate your body fat percentage from body circumference measurements using the U.S. Navy method.
Open calculatorIdeal Weight CalculatorEstimate your ideal body weight using four established medical formulas, based on your height and sex.
Open calculatorHealthy Weight CalculatorFind a healthy weight range for your height, based on the standard BMI 18.5–24.9 band.
Open calculatorCalorie Deficit CalculatorFind the daily calorie deficit needed to lose weight at your target weekly rate.
Open calculatorWeight Loss CalculatorPlan a weight loss goal by timeframe — see the weekly rate and daily calorie deficit needed.
Open calculatorWeight Gain CalculatorPlan a weight gain goal by timeframe — see the weekly rate and daily calorie surplus needed.
Open calculatorMacro CalculatorFind your daily protein, carb, and fat targets in grams, based on your calorie needs and diet style.
Open calculatorProtein CalculatorFind your recommended daily protein intake in grams, based on your body weight and activity goal.
Open calculatorCarbohydrate CalculatorFind your daily carbohydrate intake range in grams, based on your total calories and preferred carb level.
Open calculatorFat Intake CalculatorFind your daily fat intake range in grams, based on your total calories and preferred fat level.
Open calculatorWater Intake CalculatorFind your recommended daily water intake based on your body weight and exercise level.
Open calculatorLean Body Mass CalculatorEstimate your lean body mass and fat mass from your height, weight, and sex using the Boer formula.
Open calculatorBody Surface Area CalculatorCalculate body surface area in square meters using the Du Bois and Mosteller formulas.
Open calculatorWaist-to-Height Ratio CalculatorCalculate your waist-to-height ratio and see your associated health risk category.
Open calculatorWaist-to-Hip Ratio CalculatorCalculate your waist-to-hip ratio and see your associated health risk category by sex.
Open calculatorPace CalculatorCalculate your pace per kilometer or mile, and your speed, from a distance and finish time.
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