VO2max — maximal oxygen uptake — is one of the most important indicators of physical fitness. Knowing your VO2max allows you to plan training more precisely, monitor progress, and compare yourself with population norms. Best of all: you can estimate your VO2max without expensive lab tests.
What Is VO2max?
VO2max is the maximum volume of oxygen (in millilitres) the body can absorb and use per minute per kilogram of body weight (ml/kg/min). The higher the value, the more efficient the transport and utilisation of oxygen during exercise — and therefore the better the aerobic capacity.
Average VO2max values for adults:
- Men aged 20–29: 40–45 ml/kg/min (average), 55+ ml/kg/min (very good)
- Women aged 20–29: 35–40 ml/kg/min (average), 50+ ml/kg/min (very good)
- Professional cyclists and long-distance runners: 70–90 ml/kg/min
Cooper Test — The Simplest Field Method
The Cooper test involves running as far as possible in 12 minutes. The formula for VO2max from the Cooper test:
- VO2max = (distance in metres – 504.9) / 44.73
Example: you ran 2,800 m in 12 minutes.
- VO2max = (2,800 – 504.9) / 44.73 = 2,295.1 / 44.73 ≈ 51.3 ml/kg/min
This is a good result — well above average for the 25–35 age group.
Rockport Walking Test
For less active individuals or older adults, the Rockport test is safer: walk briskly for 1 mile (1,609 m) and record your time and heart rate immediately at the end.
- VO2max = 132.853 – (0.0769 × body weight in pounds) – (0.3877 × age) + (6.315 × sex [M=1, F=0]) – (3.2649 × time in minutes) – (0.1565 × final heart rate)
The result is slightly less precise than the running test, but excellent as a starting point for health-oriented training.
Resting Heart Rate as a Quick Indicator
There is also a simplified VO2max estimate based on resting heart rate (Heart Rate Reserve Method):
- VO2max ≈ 15 × (HRmax / HRrest)
Where HRmax = 220 − age, HRrest = resting heart rate (measured in the morning in bed). This method is approximate (±10%) but useful for a quick assessment.
Example: male aged 35, resting heart rate 58 bpm.
- HRmax = 220 − 35 = 185 bpm
- VO2max ≈ 15 × (185 / 58) ≈ 15 × 3.19 ≈ 47.8 ml/kg/min
How to Improve Your VO2max
VO2max can be increased through systematic aerobic training:
- High-Intensity Interval Training (HIIT): 3–4 weeks of intensive intervals yields a VO2max increase of 5–8%.
- Continuous moderate-intensity training: 60–80% of maximum heart rate, 3–5 times per week for 30–60 minutes.
- Threshold training: exercise at the lactate threshold heart rate (approx. 85–90% HRmax) for 20–40 minutes.
Results are visible after as little as 6–8 weeks of regular training.
Calculate your VO2max: VO2max Calculator Online →