Health & Fitness Calculators

Calculate your Body Mass Index (BMI) and see which weight category you fall into.

Calculate your daily calorie needs based on activity level and goals.

Estimate your body fat percentage using the US Navy method.

Calculate how much water you should drink daily based on your weight and activity.

Find your ideal body weight based on height, gender, and frame size.

Estimate your pregnancy due date from your last menstrual period.

Calculate your protein, carbohydrate, and fat targets based on your goals.

Calculate your running pace, speed, and time from distance and finish time.

Estimate basal metabolic rate and an activity-adjusted daily energy estimate using the Mifflin-St Jeor equation.

Calculate waist-to-hip ratio from waist and hip measurements.

Estimate one-repetition maximum from a weight and repetitions using the Epley formula.

Estimate body surface area using the Mosteller equation from height and weight.

Estimate average pace, split time, and complete split count from distance and elapsed time.

Estimate heart-rate training zones from age and resting heart rate using an age-based maximum and heart-rate reserve.

Estimate lean body mass and fat mass from body weight and an entered body-fat percentage.

Estimate VO2 max from distance covered in a 12-minute Cooper running test.