Health & Fitness

Estimate your body fat percentage using the US Navy circumference method.

Find your ideal body weight using the Devine, Robinson, Miller and Hamwi formulas.

Estimate your BMR, TDEE and daily calorie target based on activity and goal.

Split your daily calories into protein, carbs and fat grams by diet preset.

Estimate recommended daily water intake from body weight and exercise.

Estimate a daily protein range in grams from body weight and activity level.

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

Calculate your waist-to-height ratio and see the corresponding health category.

Estimate your maximum heart rate from your age using the classic or Tanaka formula.

Find your Karvonen training heart rate zones from your age and resting heart rate.

Estimate your due date, current week and trimester from your last menstrual period.

Estimate your ovulation day and fertile window from your cycle length and last period.

Estimate your one-rep max (1RM) with the Epley and Brzycki formulas plus a percentage table.

Estimate calories burned during an activity from its MET value, your weight and duration.

Estimate your blood alcohol content from drinks, weight and time using the Widmark formula.

See what smoking costs you daily, monthly, yearly and over ten years in your currency.