Health & Fitness Calculators
Get a clear, personalised number from inputs you control — BMI, daily water, calories burned, heart-rate zones, and more — in the metric or imperial units you actually use. Everything calculates locally in your browser and never stores the health details you enter.
Calories Burned Calculator Free calories burned calculator. Pick an activity, enter your weight and time to estimate calories burned using MET values. For running, cycling, swimming, HIIT and more.
Heart Rate Zone Calculator Free heart rate zone calculator. Enter your age and resting heart rate to get your max HR and five training zones using the Karvonen formula. For cardio and fat-burn training.
Steps to Miles Converter Free steps to miles converter. Enter your step count and height to convert steps into miles and kilometres using your personal stride length. For walking and fitness tracking.
VO2 Max Calculator Free VO2 max calculator. Estimate your cardio fitness with the 1-mile Rockport walk test or the 12-minute Cooper run test. Get your VO2 max and a fitness rating.
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