Health & Fitness
Free health and fitness calculators — calories, body fat, ideal weight, and more.
TDEE Calculator
Calculate your TDEE and daily calorie needs to lose, maintain, or gain weight. Uses the Mifflin-St Jeor equation with your activity level.
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Macro Calculator
Calculate your daily macros — protein, carbs, and fat in grams — for cutting, maintaining, or bulking. Choose a split like balanced, high-protein, or keto.
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Body Fat Calculator
Estimate your body fat percentage with the US Navy tape method using just a measuring tape. See your category, fat mass, and lean body mass.
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Ideal Weight Calculator
Find your ideal body weight for your height using the Devine, Robinson, Miller, and Hamwi formulas, plus your healthy BMI weight range.
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Running Pace Calculator
Calculate your running pace per km and per mile, your speed, and predicted finish times for 5K, 10K, half marathon, and marathon.
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