What this calculator tells you
The Cooper test uses distance covered in 12 minutes as a field estimate of aerobic capacity. It is accessible, demanding, and best repeated under similar conditions.
How to use the VO₂ Max Calculator
- 1
Use a measured flat course after an appropriate warm-up.
- 2
Cover as much distance as safely possible in exactly 12 minutes.
- 3
Enter distance and compare only with similarly conducted tests.
Formula and interpretation
Method
Estimated VO₂ max (mL/kg/min) = (distance in metres − 504.9) ÷ 44.73.
How to read the result
Compare repeated tests on the same surface and under similar weather. The trend is more useful than treating one number as a lab measurement.
Important limitations
This is a maximal running test and may be unsuitable without medical clearance or running preparation. Motivation, pacing, weather, and surface affect the result.
VO₂ Max Calculator questions
Is this the same as a lab VO₂ max test?
No. It is a field estimate; a metabolic-cart test directly measures respiratory gases.
Can I walk the Cooper test?
You can mix running and walking, but the equation and interpretation are most useful when the test reflects a maximal safe effort.





