What does the VO2 Max Estimate work out?

Estimate your aerobic capacity from a test, your resting heart rate, or a brisk walk. It is one of the Health & Fitness tools on Mondo Knows.

How is the VO2 Max Estimate calculated?

VO2 max is the most oxygen your body can use in a minute, measured per kilogram of body weight. You can get a close estimate without a lab: run as far as you can in twelve minutes, run 1.5 miles for time, or use the Rockport walk test. The maths is short enough to check by hand: Cooper: VO2 max = (distance in metres − 504.9) ÷ 44.73. 1.5-mile run: 3.5 + 483 ÷ minutes. Rockport: 132.853 − 0.0769·weight(lb) − 0.3877·age + 6.315·sex − 3.2649·time(min) − 0.1565·HR. Resting HR: 15 × (HRmax ÷ HRrest).

Do I need to sign up, and is my data stored?

No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.

Mondo Knows Tools

VO2 Max Estimate

Estimate your aerobic capacity from a test, your resting heart rate, or a brisk walk. Use the free vo2 max estimate below to get an instant answer, with the formula shown so you can check the maths and trust the result. Free, private, and no sign-up.

Which test did you do?

Distance covered in 12 minutes

Mondo says

Estimated VO2 max

42.4

ml/kg/min

Fitness rating
for your age and sexGood

Working(2,400 − 504.9) ÷ 44.73

Age predicted max HR184 bpm

Estimate onlyA lab test is still the reference

Field tests carry a few percent of error, but they track change well. Retest under the same conditions.

How it works

VO2 max is the most oxygen your body can use in a minute, measured per kilogram of body weight. You can get a close estimate without a lab: run as far as you can in twelve minutes, run 1.5 miles for time, or use the Rockport walk test. If you have none of those, resting heart rate gives a rough figure.

The formula

Cooper: VO2 max = (distance in metres − 504.9) ÷ 44.73. 1.5-mile run: 3.5 + 483 ÷ minutes. Rockport: 132.853 − 0.0769·weight(lb) − 0.3877·age + 6.315·sex − 3.2649·time(min) − 0.1565·HR. Resting HR: 15 × (HRmax ÷ HRrest).

VO2 Max Estimate: common questions

What does the VO2 Max Estimate work out?: Estimate your aerobic capacity from a test, your resting heart rate, or a brisk walk. It is one of the Health & Fitness tools on Mondo Knows.
How is the VO2 Max Estimate calculated?: VO2 max is the most oxygen your body can use in a minute, measured per kilogram of body weight. You can get a close estimate without a lab: run as far as you can in twelve minutes, run 1.5 miles for time, or use the Rockport walk test. The maths is short enough to check by hand: Cooper: VO2 max = (distance in metres − 504.9) ÷ 44.73. 1.5-mile run: 3.5 + 483 ÷ minutes. Rockport: 132.853 − 0.0769·weight(lb) − 0.3877·age + 6.315·sex − 3.2649·time(min) − 0.1565·HR. Resting HR: 15 × (HRmax ÷ HRrest).
Do I need to sign up, and is my data stored?: No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.

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Estimates for general guidance only. This is not financial, medical or legal advice. Everything runs in your browser and nothing you type is stored.