HealthUpdated · Aug 2026

VO2 Max Calculator

Estimate aerobic capacity from a heart-rate ratio or a timed running effort.

~30s to useFormula and inputs shown·2 FAQs
Start with your numbers

VO2 Max Calculator

Change the inputs that matter to your decision. Optional assumptions stay collapsed until you need them.

Fitness test

Choose the simple heart-rate ratio or a running performance estimate.

years
bpm
Cardiorespiratory fitness estimate
Estimated VO₂ max
48.5 ml/kg/min

Poor for the 26-35 reference group using the heart rate method.

MethodHeart rate method
Age group26-35
Max HR estimate190 bpm
Reference fitness ranges
Excellent56-∞ ml/kg/min
Good49-55 ml/kg/min
Above Average43-48 ml/kg/min
Average40-42 ml/kg/min
Below Average35-39 ml/kg/min
Poor0-34 ml/kg/minYour estimated category

Population reference ranges are not a diagnosis or a substitute for laboratory testing or clinical evaluation.

/ 01 · FAQ

Frequently asked questions

Practical notes about the inputs, assumptions, and result.

It is an estimate of maximal oxygen use relative to body mass, often used as one indicator of aerobic fitness.

It is a simple population-based estimate. A controlled laboratory test is more direct and can produce a different result.

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