Health & Fitness Calculators
Body composition, energy and training
BMI Calculator Body mass index, its category, and the healthy weight range for your height. Calorie & TDEE Calculator Daily energy needs from BMR and activity, with targets for losing or gaining. Macro Calculator Split a calorie target into protein, carbs and fat in grams. Body Fat Calculator US Navy tape-measure body fat percentage, plus lean mass. Ideal Weight Calculator Four clinical formulas plus the healthy BMI range for your height. Water Intake Calculator Daily hydration target from bodyweight and exercise duration. Pregnancy Due Date Calculator Estimated due date, current week and trimester from your last period. Ovulation Calculator Fertile window and next period from your cycle length. Heart Rate Zone Calculator Maximum heart rate and the five training zones. One Rep Max Calculator Estimated 1RM from a set, plus a full percentage training table.