Is this a lab VO2 max test?

No. It is a field estimate from running performance. A lab test with gas analysis is the direct measurement.

Which method should I use?

Use a recent race result if you already have one. Use the Cooper or 1.5-mile test only when you are healthy, warmed up and ready for a hard effort.

Why does my watch show a different VO2 max?

Watches often use heart rate, pace, user profile and proprietary algorithms. This calculator uses transparent field-test equations.

VO2 Max Calculator

Estimate VO2 max from a Cooper 12-minute run, a 1.5-mile run, or a recent race result, with age and sex reference bands for context.

Age

Sex

Estimation method

Check how you feel before any hard field test. Do not run an all-out effort with chest pain, unusual shortness of breath, dizziness, injury or illness; stop the test if symptoms appear.

Distance in 12 minutes (meters)

Run as far as possible for 12 minutes on a track or flat route.

VO2 max estimate

42.4 ml/kg/min

Rating for male age 30-39

Good

1530456070+ ml/kg/min

Very lowLowAverageGoodExcellentSuperior

Models: Cooper 12-minute run, 1.5-mile run and Daniels-style race estimate. This is an estimate, not a lab measurement; field-test error can be substantial.

Estimate VO2 max from running data

English VO2 max calculator intent is field-test driven: runners expect Cooper 12-minute distance, 1.5-mile time or a recent race result to produce an aerobic-fitness estimate in ml/kg/min.

V O_{2 ma x} = \frac{D _{12 min} - 504.9}{44.73}

D12min - Cooper-test distance in meters.

V O_{2 ma x} = \frac{483}{T _{1.5 mi}} + 3.5

T1.5mi - 1.5-mile run time in minutes.

Field-test limits

A field estimate is not a lab VO2 max measurement with gas analysis.
Weather, terrain, pacing, fatigue and motivation can move the result.
Do not run an all-out test when sick, injured, dizzy or experiencing chest pain.
Use the same method under similar conditions to track change over time.

Frequently Asked Questions

Sources and References

Calculations are based on the listed reference sources. Links open in a new tab.

Updated: June 2, 2026

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