Free tools to calculate BMI, body fat percentage, daily calorie deficit, and macronutrient targets — all based on validated formulas. No sign-up needed.
Calculate your Body Mass Index from height and weight. Supports metric and imperial units with instant results and healthy weight range.
Find your TDEE and daily calorie deficit for weight loss. Enter your stats and activity level to project your weight loss timeline.
Calculate your TDEE, daily calorie target, and exact protein, carbs, and fat macros for weight loss, muscle gain, or maintenance using the Mifflin-St Jeor formula.
Calculate your body fat percentage using the US Navy method or YMCA formula. Enter height, weight, and circumference measurements for an accurate body composition estimate.