Data-driven racing.
The Cooper test
The Cooper test is simple: run as far as you can in exactly 12 minutes, then convert distance into a VO2max estimate. Developed by Dr. Kenneth Cooper in 1968, it is still the fastest way to get a real fitness number without a lab. Complete runs it GPS-validated, free, and logs your result to your VO2max Road.
What is the Cooper test?
The Cooper test asks one thing of you: cover as much distance as possible in 12 minutes of running, on flat ground, at a pace you can sustain for the full duration. Dr. Kenneth Cooper designed it in 1968 as a fast way for the US Air Force to estimate cardiorespiratory fitness without lab equipment, and the same 12-minute protocol is still used today because it correlates well with a lab-measured VO2max while needing nothing but a stopwatch and a track or flat route.
The VO2max formula from distance
Cooper's original formula converts your 12-minute distance in meters directly into an estimated VO2max: VO2max ≈ (distance in meters − 504.9) ÷ 44.73. Run 2,400 m and the formula gives you roughly 42.4 ml/kg/min. It is an estimate built for a population average, not a lab measurement of your own gas exchange, so treat it as a strong signal and a way to track your own trend over time, not a clinical-grade absolute number.
How Complete runs the test
Open the Cooper test in the Complete app, warm up, and start the 12-minute timer. The app tracks your run by GPS, so your distance is measured, not self-reported, which keeps the result honest. When the 12 minutes end, Complete applies the VO2max formula automatically and writes your result straight onto your VO2max Road, updating your tier from Bronze up to Elite. A heart-rate tracker does not change the estimate: the app works from your measured distance alone. Heart rate you capture during the run only feeds optional training anchors afterwards.
Cooper test vs. lab testing
The Cooper test trades precision for speed and cost: it is free, takes 12 minutes, and needs no appointment, but it estimates VO2max from distance rather than measuring anything about your physiology directly. A lab treadmill diagnostic through PhysioEffekt is the more accurate option, because it measures your lactate thresholds from blood samples as effort rises, at the cost of an appointment and a price confirmed on request. A sensible pattern: use the Cooper test to track your trend every 8 to 12 weeks, and request a lab test when you want measured thresholds rather than an estimate.
Cooper test norms by age and sex
The table below shows median (50th percentile) VO2max values by age decade, from the Cooper Institute's Aerobics Center Longitudinal Study as summarized in ACSM's Guidelines for Exercise Testing and Prescription (11th ed., 2021). These are population medians, not pass/fail cutoffs, so sitting above or below your bracket does not tell you much on its own; your own trend across repeated tests does. Official requirements for the police (Polizei) or armed forces (Bundeswehr) use their own separate Cooper test standards that vary by Behörde and role, check directly with the specific agency for those figures rather than a generic table.
| Age | Men (ml/kg/min) | Women (ml/kg/min) |
|---|---|---|
| 20-29 | 48.0 | 37.6 |
| 30-39 | 42.4 | 30.2 |
| 40-49 | 37.8 | 26.7 |
| 50-59 | 32.6 | 23.4 |
| 60-69 | 28.2 | 20.0 |
Frequently asked questions
How often should I do the Cooper test?
Every 8 to 12 weeks. VO2max does not move meaningfully week to week, so more frequent testing mostly measures day-to-day noise.
Can I do the Cooper test on a treadmill?
Yes, in principle, though the GPS validation in the Complete app is built for outdoor running. A flat outdoor track or route gives the most reliable in-app result.
What is the Cooper test table for women?
Median VO2max by decade: roughly 37.6 ml/kg/min in the 20s, down to 23.4 by the 50s (Cooper Institute norms). See the full table above.
What counts as a good Cooper test result?
Anything above the median for your age and sex is above average. Complete's VO2max Road grades you against age and sex bands too. Without an age on file it falls back to one ladder: Bronze from 30, Silver 38, Gold 45, Platinum 50, Elite 55.
Is the Cooper test accurate?
It correlates well with lab-measured VO2max for population trends, but it is an estimate from distance, not a direct gas measurement. Use it to track your trend, not as a clinical-grade number.
Does the police or Bundeswehr use the same Cooper test?
They use their own Cooper test standards, which vary by agency and role. Check directly with the specific Behörde for the exact pass requirement.