Health & Fitness Calculators

10 calculators

BMI, BMR, TDEE, calorie, body fat and target heart rate calculators.

• BMI CalculatorPopularCalculate your Body Mass Index from height and weight and see which category you fall into.
• BMR CalculatorWork out your basal metabolic rate with the Mifflin-St Jeor equation — the calories your body burns doing nothing for a whole day.
• Body Fat CalculatorEstimate body fat percentage and lean mass with the US Navy circumference method, then see which category you fall in.
• Ideal Weight CalculatorFind your healthy weight range and compare the Devine, Robinson and Miller formulas for your height and sex.
• Macro CalculatorSplit your daily calories into protein, carbohydrate and fat grams for a cutting, maintenance or bulking goal.
• Pace CalculatorConvert distance and time into pace per kilometre, speed in kilometres per hour and finish times for common race distances.
• Target Heart Rate CalculatorFind your target heart rate zones with the Karvonen method from resting heart rate, age and desired intensity.
• TDEE CalculatorEstimate your total daily energy expenditure to see how many calories you burn each day at your activity level.
• Water Intake CalculatorEstimate how much water you should drink each day in litres and glasses, scaled to your body weight and activity.
• Weight Loss CalculatorSee how long a weight loss goal takes at a safe weekly rate and the daily calorie deficit needed to reach it.