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Health & Fitness Calculators

Body metrics, calories, pregnancy and training numbers.

BMI BMI, weight category, and the healthy weight range for your height. 3 inputs Open → BMR Basal metabolic rate and total daily energy expenditure at five activity levels. 5 inputs Open → Calorie Daily calorie targets to maintain, lose or gain weight at your chosen pace. 6 inputs Open → Due Date Estimated due date, gestational age, and key milestone dates. 1 input Open → Ideal Weight Four published formulas for a reference body weight, shown side by side. 3 inputs Open → Body Fat Estimate body fat from waist, neck and height using the U.S. Navy method. 4 inputs Open → Waist-to-Hip Ratio Waist ÷ hip circumference, with the WHO risk band for your sex. 2 inputs Open →