Health & Fitness Calculators

Monitor your health with BMI, body fat, calorie, water intake, heart rate and weight loss calculators.

Calculate your Body Mass Index (BMI) to check if your weight is in a healthy range.

Calculate your daily calorie needs based on age, weight, height, and activity level.

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

Calculate your recommended daily water intake based on body weight and exercise.

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

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

Calculate your Basal Metabolic Rate (BMR) — the calories your body burns at complete rest.

Calculate your maximum heart rate and target heart rate zones for exercise.

Calculate how long it will take to reach your target weight based on a daily calorie deficit.

Estimate your ideal body weight using the Devine formula based on height and gender.