VO2 Max Calculator
Estimate your VO2 max — a common measure of aerobic (cardiovascular) fitness — using either the Cooper 12-minute run test or the heart-rate ratio method.
Cooper 12-minute run test
Run as far as you can in exactly 12 minutes, then enter the distance covered.
Estimated VO2 max: mL/kg/min
Heart-rate ratio method
A non-exercise estimate from resting and maximum heart rate (Uth–Sørensen–Overgaard–Pedersen method).
Estimated VO2 max: mL/kg/min
Notes
Cooper test formula: VO2max = (distance in meters − 504.9) ÷ 44.73. Heart-rate ratio formula: VO2max = 15.3 × (HRmax ÷ HRrest). Both are field estimates, not laboratory-grade measurements — actual VO2 max requires gas-exchange testing.