VO2 Max Estimator.
VO2 max is the single strongest predictor of all-cause mortality, stronger than smoking, diabetes, or hypertension. Estimate yours from resting heart rate.
Average VO2 Max by Age
VO2 max declines with age, and the average differs by sex. Use the table below to see the typical (≈50th-percentile) VO2 max for your age band, then compare it to your estimate above.
| Age | Average · Men | Average · Women |
|---|---|---|
| 20–29 | 44 mL/kg/min | 36 mL/kg/min |
| 30–39 | 43 mL/kg/min | 34 mL/kg/min |
| 40–49 | 41 mL/kg/min | 33 mL/kg/min |
| 50–59 | 36 mL/kg/min | 30 mL/kg/min |
| 60–69 | 33 mL/kg/min | 27 mL/kg/min |
| 70+ | 29 mL/kg/min | 24 mL/kg/min |
Population averages, mL/kg/min. Individual ranges are wide: trained adults routinely exceed these by 30–50%.
Frequently Asked Questions
What is a good VO2 max for my age?+
VO2 max declines with age, so "good" is always age- and sex-relative. As a rough guide, an above-average VO2 max is around 45+ ml/kg/min for men and 38+ for women in their 30s, drifting lower each decade. Enter your details above to see where your estimate lands against norms for your age band rather than a single universal target.
What is the average VO2 max by age?+
Average VO2 max falls steadily with age: men typically average roughly 40–45 ml/kg/min in their 20s–30s and decline by about 10% per decade thereafter; women average roughly 33–38 in the same range with a similar decline. This tool maps your estimate onto those age-banded averages so "average" means average for you.
How is VO2 max estimated without a lab test?+
This calculator uses the Uth–Sørensen–Overgaard–Pedersen method, which estimates VO2 max from the ratio of your maximum to resting heart rate. It is not as precise as a lab treadmill test with a gas mask, but it requires no equipment beyond a resting heart-rate reading and tracks change over time well.
Why does VO2 max matter for longevity?+
VO2 max is one of the strongest single predictors of all-cause mortality, stronger than smoking, hypertension, or diabetes in some cohort studies. A higher VO2 max means a larger aerobic reserve, which is why improving it (largely through Zone 2 and interval training) is a core longevity lever.
What VO2 max measures.
VO2 max is the maximum volume of oxygen your body can use during sustained, all-out exercise, expressed in milliliters per kilogram of body weight per minute (mL/kg/min). It is the gold-standard measure of cardiorespiratory fitness: the integrated output of your heart, lungs, blood, and skeletal muscle mitochondria working together at the limit.
This calculator uses the Uth–Sørensen–Overgaard–Pedersen formula (15 × HRmax/HRrest), which estimates VO2 max from resting heart rate. It is a population-level approximation with ±10–15% error vs. lab testing. For a precise reading, a graded exercise test on a treadmill or bike with metabolic cart is the standard; a 12-minute Cooper test gives a closer field estimate.
Why this is the single most predictive fitness metric.
In the largest cohort study to date (Mandsager et al., JAMA Network Open, 2018; >120,000 adults), cardiorespiratory fitness showed an inverse, graded association with all-cause mortality across every age bracket. Adults in the elite VO2 max tier had a 5x lower mortality risk than those in the lowest tier, a larger effect than smoking, diabetes, or hypertension.
Critically, the relationship is dose-responsive across the full distribution: there is no point at which more fitness stops helping. Moving from "below average" to "average" cuts mortality risk by roughly 50%. The lowest-hanging fruit in healthspan optimization is sitting in this metric.
How to actually raise it.
VO2 max responds to a polarized training stimulus: about 80% of training volume at low intensity (Zone 2), and 20% at high intensity (Zone 4–5, near maximum). The "Norwegian 4x4" protocol (4 minutes at 90–95% of HRmax, 3-minute recovery, repeated 4 times, once or twice weekly) produces the largest documented gains in VO2 max in healthy adults over 8–12 weeks.
Pair the weekly VO2 max session with 2–3 weekly Zone 2 sessions of 45–60 minutes. Expect 5–15% improvement in 8–12 weeks for untrained adults; trained adults gain more slowly (1–3% per year) but the trajectory still moves.
- Mandsager K, et al. (2018). Association of cardiorespiratory fitness with long-term mortality among adults undergoing exercise treadmill testing. JAMA Netw Open, 1(6), e183605.
- Uth N, Sørensen H, Overgaard K, Pedersen PK. (2004). Estimation of VO2max from the ratio between HRmax and HRrest: the Heart Rate Ratio Method. Eur J Appl Physiol, 91(1), 111–115.
- Helgerud J, et al. (2007). Aerobic high-intensity intervals improve VO2max more than moderate training. Med Sci Sports Exerc, 39(4), 665–671.
VO2 max responds to structured Zone 2 plus a weekly interval session. Plan and log both with the fitness planner.
Get the guide →For education, not medical advice. Results are estimates, not a diagnosis. Discuss any abnormal value or health concern with a qualified clinician.
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