VO2 Max Norms by Age: How Do You Compare?

What counts as a good VO2 max at your age and sex, rough average values from 30 to 70+, why it predicts longevity, and how to raise yours safely.

A good VO2 max depends on your age and sex, and the numbers fall steadily with each decade. Roughly, an average 40-year-old man sits around 36 to 39 ml/kg/min and an average 40-year-old woman around 30 to 32. The more useful comparison, though, is with your own number six months ago, because moving from low to average fitness does more for your lifespan than almost anything else you can measure.

Why VO2 max matters so much

VO2 max is the most oxygen your body can use per minute during maximal effort, expressed in millilitres per kilogram of body weight per minute (ml/kg/min). It reflects how well your lungs, heart, blood and muscles work as one system.

The link with survival is strong. In a study of about 122,000 adults who had treadmill testing, people with the lowest fitness had a much higher long-term risk of death than those with high fitness, and the risk of low fitness was comparable to or greater than that of smoking or diabetes (Mandsager et al., 2018). A meta-analysis found that each 1 MET higher fitness (about 3.5 ml/kg/min) was linked to roughly 13 percent lower all-cause mortality (Kodama et al., 2009). The American Heart Association has argued that fitness should be treated as a clinical vital sign (Ross et al., 2016).

These are observational findings, so they show a strong association rather than proof that raising VO2 max alone adds years. Even so, fitness is one of the few risk markers you can change with training. Our VO2 max training guide covers the wider picture.

Approximate average VO2 max by age

Published reference tables differ by several points depending on the population and test method, so treat the figures below as rounded averages (around the 50th percentile) for healthy adults, not a diagnosis.

Some practical readings:

• Clearly below your age band: a signal to prioritise regular cardio. This is where the biggest health return sits.
• Around average: a reasonable base, with room to improve.
• Well above average: protective, but the extra benefit per point is smaller than at the low end.
• Under about 18 ml/kg/min in later life: this is near the level many people need for everyday tasks such as climbing stairs without strain, so it is worth acting on early.

Women generally score lower than men because of differences in body size, blood volume and haemoglobin, so compare yourself with your own sex.

Why does VO2 max fall with age?

Three things combine. Maximum heart rate drops by roughly 0.7 beats per year. The heart’s ability to fill and pump weakens a little. Muscle mass, and the capillaries and mitochondria inside it, shrink if you do not use them.

Inactivity speeds this up. Typical decline is often quoted at about 10 percent per decade for sedentary adults, and slower in people who keep training. That is why a fit 60-year-old can match or beat an unfit 40-year-old, and why the decline is not fixed.

How to find your own number

You do not need a lab to start:

1. Use our VO2 max calculator for a quick estimate from a field test.
2. Try the Cooper 12-minute run or fast walk. Estimated VO2 max = (distance in metres minus 504.9) divided by 44.73. Do this only if you are cleared for hard effort.
3. Use the 2-minute step test to track a simple trend.
4. Check a watch estimate, as explained in how to use your watch for VO2 max. Watches can be off by several points, but the trend over months is useful.
5. For a precise figure, book a lab test. We list costs in where to get a VO2 max test in Malaysia.

Always compare like with like: the same method, the same time of day, and similar conditions. In Malaysia, heat and humidity can lower field-test results, so a hot afternoon test will read lower than a cool morning one.

How to raise your VO2 max

VO2 max responds to training at any age, and the plan is simple:

• Build a base. Do 150 to 200 minutes a week of easy Zone 2 cardio. The weekly Zone 2 schedule shows how to lay it out, and the Zone 2 guide explains the pace.
• Add one hard session. The Norwegian 4x4 uses four 4-minute efforts with 3 minutes of easy recovery. Start with a gentler version, such as brisk uphill walking, if you are new.
• Keep your legs strong. Two strength sessions a week protect muscle, which also affects how well you use oxygen.
• Be patient. Meaningful change usually takes 8 to 12 weeks, and the first gains in less-fit people can be large. See improving stamina after 50.

The WHO recommends at least 150 to 300 minutes of moderate activity a week for adults, which gives you the base for all of this (Bull et al., 2020).

When to see a doctor first

Get medical clearance before vigorous testing or intervals if you have known heart disease, uncontrolled high blood pressure, diabetes with complications, or you are over 50 and have been inactive. Stop and seek help for chest pain or pressure, fainting, severe breathlessness or an irregular heartbeat. Our guide to medical clearance before exercise explains who needs a check and what it involves.

Key takeaways

• Average VO2 max falls with each decade and is lower in women than men, so compare yourself within your age and sex.
• Moving from low to average fitness gives the largest health gain, and each 1 MET improvement is linked to about 13 percent lower mortality.
• Your own trend over months matters more than a chart value.
• Zone 2 cardio plus one weekly interval session raises VO2 max in most people within 8 to 12 weeks.
• Get cleared by a doctor before hard testing if you have heart disease or have been inactive for years.

If you would like your fitness assessed and a plan built around it, we run home-visit assessments across KL and Selangor.