Health Tools

Calculate your Body Mass Index and see your weight category on a visual scale.

Find your Basal Metabolic Rate — the calories your body burns at complete rest.

Estimate your daily calorie needs (TDEE) plus targets for losing or gaining weight.

Estimate your body fat percentage using the U.S. Navy circumference method.

See your ideal body weight from four classic formulas (Devine, Robinson, Miller, Hamwi).

Split your daily calories into protein, carbs and fat for balanced, keto and other diets.

Find out how much water to drink each day based on your weight and activity.

Calculate your max heart rate and the five training zones using the Karvonen method.

Calculate running pace, finish time or distance — with 5K, 10K and marathon presets.

Estimate your due date, conception date and current pregnancy week from your last period.

Estimate your ovulation day and fertile window based on your menstrual cycle.

Find the best bedtimes or wake-up times based on 90-minute sleep cycles.

Estimate calories burned during 16+ activities using MET values, weight and duration.

Calculate your waist-to-hip ratio and see the associated health-risk category.

Estimate your blood alcohol content from drinks, weight and time.

Convert your step count into calories burned and distance walked.

Estimate your one-rep max from weight and reps, with training percentage breakdowns.