VO2 Max Calculator

Estimate VO₂ max from a Cooper test, heart rate or 1.5-mile run.

Runs in your browser — nothing is uploaded
Max HR estimated as 208 − 0.7 × age.

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Informational estimates only — not medical or training advice.

How to use VO2 Max Calculator

  1. Enter your values — the unit for each field is shown next to it.
  2. The result updates instantly as you type.
  3. Copy the results, or change inputs to compare scenarios.

Formula & assumptions

Cooper: (distance m − 504.9) / 44.73

Heart rate ratio: 15.3 × HRmax / HRrest