VO2 max is the maximum rate at which your body can use oxygen during hard exercise and is a strong marker of aerobic fitness. Measuring it precisely needs a lab, but you can estimate it from simple field data. This tool offers a quick heart rate method that divides your estimated maximum heart rate by your resting heart rate and multiplies by 15.3, which correlates reasonably with measured values in many people. The result appears in millilitres of oxygen per kilogram per minute, the standard unit, with a rough fitness band for context. Enter your age and resting heart rate and the estimate updates instantly. Everything runs locally in your browser with no data sent anywhere. This is a general fitness estimate, not a clinical measurement or medical advice, so use it to track trends over time rather than as an exact figure.
You can estimate VO2 max from a one mile walk test, known as the Rockport test, or from your resting heart rate.
It is the maximum rate your body can use oxygen during exercise, a common measure of aerobic fitness.
Both are approximations rather than lab measurements, but they give a useful benchmark to track over time.
VO2 max is the maximum rate at which your body can use oxygen during hard exercise and is a strong marker of aerobic fitness. Measuring it precisely needs a lab, but you can estimate it from simple field data.
Yes. VO2 Max Estimator is completely free, with no sign-up and no usage limits.
Yes. VO2 Max Estimator runs in any modern web browser. There is nothing to download or install.
Yes. VO2 Max Estimator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.