Health Calculators

BMI Calculator

Check your Body Mass Index and see which healthy range you fall into.

Calorie Calculator

Estimate your daily calorie needs based on your body and activity level.

Calories Burned Calculator

Estimate calories burned during exercise using MET values.

Body Fat Calculator

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

BMR Calculator

Estimate the calories your body burns at rest, using the Mifflin-St Jeor formula.

Pregnancy Due Date Calculator

Estimate your due date and current week of pregnancy from your last menstrual period.

Running Pace Calculator

Find your running pace per kilometer and average speed.

Macro Calculator

Split your daily calories into protein, carb and fat targets in grams.

Water Intake Calculator

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

Protein Intake Calculator

Estimate your daily protein needs based on body weight and activity level.

Heart Rate Zone Calculator

Find your target heart rate zones for fat burning and cardio training.

Ideal Weight Calculator

Estimate a healthy reference weight for your height using the Devine formula.

Target Heart Rate Calculator (Karvonen)

Find your target training heart rate using the Karvonen method, which factors in resting heart rate.

Lean Body Mass Calculator

Estimate your lean body mass — everything except body fat — using the Boer formula.

Waist-to-Hip Ratio Calculator

Find your waist-to-hip ratio, a common indicator of body fat distribution.

BMI Prime Calculator

Find your BMI Prime, a simple ratio showing how close you are to the upper healthy BMI limit.