Health & Fitness Calculators
VO2 Max Estimator (Cooper Test)
Enter the distance covered in a 12-minute all-out run to estimate your VO2 max using the Cooper test formula.
42.4 mL/kg/min
estimated VO2 max
Uses the Cooper 12-minute run test formula: VO2max = (distance in meters − 504.9) ÷ 44.73. Run as far as you can at a sustainable, all-out pace for exactly 12 minutes on a flat, measured course — a lab test with gas analysis is far more accurate than any field-test estimate like this one.
How to use this tool
- 1Run as far as possible in exactly 12 minutes on a flat, measured course.
- 2Enter the distance covered in meters.
- 3See your estimated VO2 max.
Frequently asked questions
How accurate is a field test like this?+
Less accurate than a lab test with gas analysis, but useful as a free, repeatable way to track fitness trends over time.