Free tool

Estimate your VO₂ max in one number.

A rough estimator from a single benchmark: your 2 km rowing time or your 5 km run time. Not medical. Not a treadmill test. A useful sanity-check that puts your endurance in a familiar unit.

What you get

Two inputs.

Pick 2 km rowing or 5 km running, enter your time. Baseline returns an estimated VO₂ max in ml/kg/min.

A comparison bracket.

Where your estimate sits for your age and sex, using published population norms. Bracket and one-liner, no leaderboard.

Honest caveats.

Field-test estimates are ±3–5 ml/kg/min at best. The report says so clearly. This is not a medical assessment.

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