Health Tools
Body-mass screening backed by the World Health Organization classification. Enter weight and height in metric or imperial; get BMI, category, and the healthy weight range for your height. Useful as a starting point, not a diagnosis — see your doctor for medical decisions.
13 health tools
Calculate Body Mass Index and find your healthy weight range.
Estimate your daily calorie burn (BMR and TDEE) using the Mifflin–St Jeor equation.
Estimate your basal metabolic rate and daily calorie needs by activity level.
Estimate how much water to drink daily from your weight and activity.
Estimate your due date and current pregnancy week from your last period.
Find the best bedtime or wake-up time based on 90-minute sleep cycles.
Estimate body fat percentage using the U.S. Navy circumference method.
Estimate a healthy body weight range from height using four classic formulas.
Split your daily calories into protein, carbs and fat grams for any diet.
Calculate running pace, time or distance for any run or race.
Estimate your one-rep max from the weight and reps of a lifting set.
Estimate ovulation date and fertile window from your last period and cycle length.
Calculate your waist-to-hip ratio and health risk category based on WHO guidelines.