Run the 12-minute Cooper test, or estimate from your resting heart rate if you'd rather not.
Estimates are for general guidance only and are not medical advice. For a personalised plan, book a free guided tour at RPM Gym.
VO2 max is the maximum oxygen your body can use per kilogram per minute, and it's a laboratory measurement. Everything on this page is an estimate of it, and the two methods here are not equally good.
The Cooper test is a field test: run as far as you can in twelve minutes and the distance predicts the value. It's the better estimate because it measures performance, and it inherits performance's problems — pacing, weather, and how hard you were actually willing to push.
The resting heart rate method needs no test at all, which is its appeal and its weakness. It estimates from the ratio between maximum and resting heart rate, and both of those carry their own error before the ratio compounds them.
Either way, the trend is worth more than the value. A number that moves from 41 to 45 across three months of consistent testing is telling you something real. A single reading placed against a population table is telling you much less.
Cooper: VO2max = (distance in metres − 504.9) ÷ 44.73 HR ratio: VO2max ≈ 15.3 × (HRmax ÷ HRrest) HRmax is estimated from age using Tanaka: 208 − (0.7 × age)
A 32-year-old covering 2,400 m in a 12-minute Cooper test.
About 42 ml/kg/min. With a 10-15% error band that's realistically 36-49, which is why comparing your figure to someone else's is close to meaningless and comparing it to your own from three months ago is not.
It depends heavily on age and sex, and the published tables are broad. Roughly, 35-45 ml/kg/min is average for a middle-aged adult, above 50 is well-trained and endurance athletes reach the 60s and 70s. Your own trend over time is more informative than where you sit in a table.
The Cooper 12-minute run is the practical option: run as far as you can in twelve minutes on a flat measured course, then enter the distance. It needs no equipment beyond a way to measure the distance and an honest effort.
Field estimates typically land within 10-15% of a laboratory measurement, which is a wide band. Two people with genuinely different fitness can produce the same estimate, so it's a tracking tool rather than a ranking one.
It's estimating from pace and heart rate during your runs, so it's in the same accuracy range as any field method and it drifts if your heart-rate data is poor. It's useful for trend, and the absolute figure carries the same error as everything else here.
Consistent aerobic volume does most of the work, with a smaller amount of hard interval training on top. Beginners improve fastest; the closer you are to your ceiling, the slower and smaller the gains.
Cooper, if you're willing to run it. It measures something you did rather than inferring from two resting numbers. The heart-rate method is for when a maximal effort isn't appropriate or available.
Zone-two volume is what moves this number, and it's the easiest training to do badly. Get the intensity right on a free guided tour at RPM Gym in Al Manhal.