VO2 Max Estimator
Two lab-free estimates: resting-heart-rate ratio or the Cooper 12-minute run.
Result
VO2 max43.5 ml/kg/min
CategoryGood
Max HR used185 bpm
Percentile (35yo male ref)Average
VO2 Max Estimator — FAQs
How accurate without a lab?
±10–15% vs a masked lab test — good enough to track fitness trend. Wearables use the same resting-HR approach.
What's a good VO2 max?
Depends on age/sex — ~40+ is decent for a 35-year-old man, 35+ for women. Elite endurance athletes hit 60–80+.
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