Estimate your VO₂max from the 12-minute Cooper test or from a race time and assess your aerobic endurance.
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From Cooper TestVO₂max from distance in 12-minute run
Cooper Test
Distance in 12-minute run.
m
The distance covered in the 12-minute Cooper test.
Load example
For illustration only – your own calculation is what counts.
Explanation
How VO₂max Calculator works
The VO₂max calculator estimates maximum oxygen uptake from a simple field test. Available are the 12-minute Cooper test and an estimate from a race time.
Two Estimation Methods
Cooper TestVO₂max = (Distance [m] − 504.9) ÷ 44.73
From the distance covered in twelve minutes, maximum oxygen uptake is estimated (Cooper 1968).
From Race PerformanceVO₂max ≈ VO₂ ÷ Fraction of VO₂max
From distance and time, running speed and the percentage fraction of VO₂max according to Daniels and Gilbert are determined and VO₂max is derived.
Practice
Practical examples
For illustration only – your own calculation is what counts.
VO₂max from Cooper test
In the 12-minute run, 2800 m are covered; the estimated VO₂max is sought.
Result: The Cooper formula estimates around 51 ml/kg/min – very good aerobic endurance.
VO₂max from 5 km time
A 5 km run is completed in 20:00; VO₂max is estimated according to the race model.
Result: From pace and duration, a VO₂max of around 50 ml/kg/min results – good aerobic endurance.
Notes
Common mistakes
Test without true maximal effort
A too-easy run test significantly underestimates VO₂max.
Run the test really to maximal effort – best rested and motivated.
Classifying raw value without age and gender
The rough band classification does not replace an age- and gender-specific norm table.
Compare your value with an appropriate norm table for age and gender.
FAQ
Frequently asked questions
What is VO₂max?
VO₂max is the maximum amount of oxygen your body can take up and utilize per minute – usually related to body weight in milliliters per kilogram per minute. It is considered a measure of aerobic endurance capacity.
How does the Cooper test work?
In the Cooper test, you run as far as possible for twelve minutes on a flat, measured course. From the distance covered in meters, the formula VO₂max = (Distance − 504.9) ÷ 44.73 estimates maximum oxygen uptake.
How does the race mode estimate VO₂max?
From a race distance and the time run, running speed is determined. Via an approximation according to Daniels and Gilbert (VDOT), VO₂max is derived. Most reliable is this for fully run distances of about 1.5 to 21 km.
How accurate is the estimate?
Both methods are approximations. They assume true maximal effort, fair conditions, and a flat course. Laboratory-supported spiroergometry remains the gold standard; calculator values are a guide.
How do I classify my value?
The calculator shows a rough, age- and gender-neutral classification from low to excellent. Exact norms depend on age and gender – consult age- and gender-specific norm tables (e.g., ACSM) for this.
How do I improve my VO₂max?
A mix of extensive base training and targeted intensive intervals in the range near VO₂max improves maximum oxygen uptake most effectively. Progress takes weeks to months.
Limits
Limitations
Both methods are approximations and do not replace laboratory-supported spiroergometry.
Heat, wind, elevation, and daily form distort the test result.
Sources
Sources and references
Cooper, K. H. (1968): A means of assessing maximal oxygen intakeJAMA 203(3):201–204
Documents the estimation formula VO₂max = (Distance − 504.9) ÷ 44.73 from the 12-minute run.
Retrieved: 09/23/2026 · Verified on: 09/23/2026
Daniels, J. & Gilbert, J.: Oxygen PowerDaniels' Running Formula (VDOT-Modell)
Basis for estimating VO₂max from running speed and race duration.
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