Sport & running
How do you calculate VO2max and training paces from a Cooper or Léger test?
Maximal aerobic speed, VO2max and your training paces (easy, marathon, threshold, VO2max) from the Léger-Boucher track test or the 12-minute Cooper test.
Quick answer
Your **VMA (maximal aerobic speed)** is the speed of the **last stage you completed** in the Léger-Boucher track test (2-minute stages, +1 km/h each). From it, **VO2max ≈ 3.5 × VMA**, and every training pace is a percentage of VMA. Example: a **16 km/h VMA** means VO2max ≈ **56 ml/kg/min**, easy runs at ~75% (12 km/h, **5:00/km**), threshold at ~88% (**4:16/km**) and VO2max intervals at 100% (**3:45/km**). Formula for any pace: **pace = 60 ÷ (VMA × %intensity)**.
VMA (maximal aerobic speed)
16 km/h
- Estimated VO2max
- 56 ml/kg/min
| Training zone | Pace (min/km) | Speed |
|---|---|---|
| Recovery / easy 65% | 5:46 | 10.4 km/h |
| Endurance / long run 75% | 5:00 | 12 km/h |
| Marathon pace 82% | 4:34 | 13.1 km/h |
| Threshold / tempo 88% | 4:16 | 14.1 km/h |
| VO2max intervals (at VMA) 100% | 3:45 | 16 km/h |
| Speed 112% | 3:21 | 17.9 km/h |
Turn paces into race splits? Running pace calculator (min/km ↔ km/h)
⚠️ A maximal test is exhausting — only for healthy, trained runners. Warm up, stop if you feel unwell, and get medical clearance first if you have any heart condition. Informational, not medical advice.
VMA = speed of the last completed stage of the Léger-Boucher test; VO2max ≈ 3.5 × VMA; each pace = 60 ÷ (VMA × %). If you did not finish the last stage, enter the previous one.
How it works
Why VMA beats a bare VO2max number: it is the single value that sets **all** your paces, so a track test becomes a full training plan. No track? The **12-minute Cooper test** gives VO2max = (metres − 504.9) ÷ 44.73, from which VMA ≈ VO2max ÷ 3.5. To actually hold these paces in real time you need a GPS running watch, and a heart rate chest strap helps you keep intervals honest. ⚠️ A maximal test is exhausting — only for healthy, trained runners; get medical clearance first if you have any heart condition.
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Frequently asked questions
What is VMA (maximal aerobic speed)?+
VMA is the lowest running speed at which you reach your VO2max — the point where oxygen uptake plateaus. In the Léger-Boucher test it is simply the speed of the last stage you completed. It is the reference speed from which every training intensity is set as a percentage.
Léger-Boucher or Cooper — which is better?+
Léger-Boucher (an incremental track test to exhaustion) is more precise because it reads VMA directly, but it is harder and needs a marked track with audio cues. The 12-minute Cooper test is simpler and estimates VO2max from distance; VMA is then derived. Use Léger if you can, Cooper as a practical fallback.
How do I turn VMA into training paces?+
Multiply VMA by the intensity percentage to get the speed, then convert to pace with 60 ÷ speed. Common zones: easy 65-70%, endurance 75-80%, marathon ~82%, threshold 85-90%, VO2max intervals 100%, speed 105-115%. The calculator prints all of them in min/km for you.
Is the Cooper test used by the military and police?+
Yes — the 12-minute Cooper test was created in 1968 for the US Air Force and is still used by many armed forces, police and firefighter selections to estimate aerobic fitness (VO2max). This tool gives you that VO2max from your distance; pass marks differ by country, branch, age and sex, so always check your own official requirement rather than a generic table.
Is a maximal test safe?+
For healthy, trained runners it is a normal part of training, but it is a true all-out effort. Warm up well, stop if you feel chest pain, dizziness or nausea, and get medical clearance first if you have a heart condition, are over 40 and new to hard training, or have symptoms. This tool is informational, not medical advice.
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