Health Calculators
Body metrics and daily energy needs.
Calculate your Body Mass Index in metric or imperial units and see your weight category.
Open →Estimate your daily calorie needs (BMR and TDEE) for maintaining, losing or gaining weight.
Open →Estimate your body fat percentage using the US Navy tape-measurement method.
Open →Calculate the calories your body burns at rest using the Mifflin-St Jeor equation.
Open →Estimate your ideal body weight using the Devine, Robinson, Miller and Hamwi formulas.
Open →Split your daily calories into protein, carb and fat targets for your goal.
Open →Find your most fertile days and next period from your last cycle and length.
Open →Estimate your baby's due date and current pregnancy week from your last period.
Open →Estimate your one-rep max and training percentages from a set's weight and reps.
Open →Estimate how much water you should drink each day based on weight and activity.
Open →Work out your running pace, speed and finish time from distance and time.
Open →Estimate calories burned during exercise from activity, weight and duration.
Open →Find the best bedtime or wake-up time based on 90-minute sleep cycles, so you wake at the end of a cycle feeling refreshed instead of groggy.
Open →Work out your target heart-rate training zones — warm-up, fat-burn, aerobic and peak — from your age and resting heart rate, using the max-HR and Karvonen methods.
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