Body metrics, pace, and training numbers.
Body metrics like BMI, BMR, and body fat percentage are calculated from a handful of standard, published formulas - these tools apply them to your measurements so you get a number to work with, alongside a plain-language note on what that number does and doesn't tell you.
Calculate your body mass index from height and weight.
Estimate what percentile a height falls into among US adults of the same gender.
Calculate your basal metabolic rate - the calories your body burns at rest.
Calculate body surface area (BSA) from height and weight using the Mosteller formula.
Calculate your daily calorie needs to maintain, lose, or gain weight.
Estimate your body fat percentage using the U.S. Navy circumference method.
Split your daily calorie target into protein, fat, and carb grams.
Estimate your daily water intake target based on body weight and activity.
Estimate your one-rep max from a weight and rep count using the Epley formula.
Calculate your maximum heart rate and target training zones by age.
Estimate a healthy target weight based on height and gender.
Calculate your bra band and cup size from your underbust and bust measurements.
Calculate your running pace per mile or kilometer.
Convert a step count into distance walked, based on your stride length.
Estimate a pregnancy due date from your last period, conception date, or IVF transfer date.
Estimate your ovulation date and fertile window from your last period and cycle length.
Estimate calories burned during an activity using its MET value.