Health & Fitness Calculators

• BMI CalculatorFind your body mass index from height and weight, in metric or imperial units, with the standard weight category. Free and instant.
• BMR CalculatorEstimate your basal metabolic rate, the calories your body burns at rest, using the Mifflin-St Jeor, Harris-Benedict, or Katch-McArdle equation.
• TDEE CalculatorEstimate your total daily energy expenditure, the calories you burn per day, from your BMR and activity level. Free maintenance-calorie calculator.
• Body Fat CalculatorEstimate body-fat percentage with the US Navy tape method from a few measurements, plus the fitness category it falls in. Free and private.
• Ideal Weight CalculatorEstimate a healthy target weight for your height using the Devine, Robinson, Miller, and Hamwi formulas. Results in kilograms, free and instant.
• Macro CalculatorTurn a daily calorie target into grams of protein, carbs, and fat for any macro split. Free macronutrient calculator with no signup.