If you’ve recently looked at your smartwatch, fitness app, or training data, you may have come across the term VO2 max and wondered whether your score is good, average, or something you should be concerned about.
VO2 max is one of the most useful measures of cardiovascular fitness available. It is widely used by runners, cyclists, rowers, Hyrox athletes, and fitness enthusiasts, but it is also becoming increasingly recognised as an important marker of long-term health and longevity.
At Active Health Clinics in Maidenhead, we provide VO2 max testing using the VO2 Master system, helping people understand their fitness levels and use objective data to improve performance, health, and training efficiency.
What Is VO2 Max?
VO2 max refers to the maximum amount of oxygen your body can use during intense exercise.
Put simply, it measures how effectively your heart, lungs, blood vessels, and muscles work together to deliver and utilise oxygen.
The higher your VO2 max, the greater your capacity for aerobic exercise and endurance performance.
VO2 max is typically measured in millilitres of oxygen per kilogram of body weight per minute (ml/kg/min).
Why Does VO2 Max Matter?
VO2 max is valuable because it provides insight into both performance and health.
For athletes, it can help:
- Measure aerobic fitness
- Identify strengths and weaknesses
- Guide training intensity
- Track improvements over time
For non-athletes, it can help:
- Assess overall cardiovascular fitness
- Monitor health and ageing
- Establish a fitness baseline
- Motivate exercise and lifestyle changes
Research has consistently shown that higher levels of cardiorespiratory fitness are associated with better long-term health outcomes and reduced risk of cardiovascular disease.
What Is a Good VO2 Max Score?
A “good” VO2 max depends on several factors, including age, sex, genetics, training history, and activity levels.
Rather than comparing yourself to elite athletes, it’s more useful to compare your score against people of a similar age and sex.
Men
| Age | Excellent | Good | Average |
| 20–29 | 55+ | 44–54 | 35–43 |
| 30–39 | 52+ | 42–51 | 33–41 |
| 40–49 | 49+ | 39–48 | 31–38 |
| 50–59 | 45+ | 36–44 | 26–35 |
| 60+ | 42+ | 32–41 | 22–31 |
Women
| Age | Excellent | Good | Average |
| 20–29 | 49+ | 38–48 | 29–37 |
| 30–39 | 45+ | 34–44 | 27–33 |
| 40–49 | 42+ | 31–41 | 24–30 |
| 50–59 | 38+ | 28–37 | 22–27 |
| 60+ | 35+ | 25–34 | 20–24 |
These figures should be viewed as general guidelines rather than strict targets.
Is VO2 Max More Important Than Weight?
This is becoming an increasingly important question.
Many people focus heavily on body weight when thinking about health, but research suggests that cardiovascular fitness may be an even stronger predictor of long-term health outcomes.
A person with a healthy VO2 max and good fitness levels may have better long-term health prospects than someone who is lighter but physically inactive.
This doesn’t mean weight is irrelevant, but it highlights the importance of improving fitness alongside any weight management goals.
Can You Improve Your VO2 Max?
Yes.
While genetics play a role in determining your starting point, VO2 max can be improved through appropriate training.
Some of the most effective methods include:
- Consistent aerobic training
- Zone 2 endurance training
- Interval training
- Running
- Cycling
- Rowing
- Hyrox-specific conditioning
- Structured strength and conditioning programmes
Many people see significant improvements in their VO2 max when training is based on objective data rather than guesswork.
How Accurate Are Smartwatch VO2 Max Estimates?
Many modern watches attempt to estimate VO2 max.
While they can provide a useful indication, they are still estimates based on algorithms.
The most accurate way to measure VO2 max is through direct gas analysis, where oxygen consumption is measured in real time during exercise.
At Active Health Clinics, we use the VO2 Master system to provide accurate VO2 max testing on:
- Treadmill
- Wattbike
- Rowing machine
- Your own bike using our Bluetooth turbo trainer
This allows us to gather objective data specific to your chosen sport or activity.
Why Get Your VO2 Max Tested?
Testing provides much more than a single fitness score.
A VO2 max assessment can help you:
- Establish a baseline
- Identify training zones
- Monitor progress
- Improve endurance performance
- Support weight management goals
- Better understand your cardiovascular fitness
- Make more informed training decisions
Most importantly, it helps remove guesswork from your training.
Clinical Insight – Nick Riding, Accredited Strength & Conditioning Coach
As a Strength & Conditioning Coach, one of the most common questions I get when conducting VO₂ max tests is:
“Is my score good?”
The answer depends on several factors, including age, sex, training history, and the type of activity you’re performing. However, understanding where your score sits compared to population norms can provide valuable insight into both your cardiovascular fitness and your long-term health.
Many people focus on the number itself, but the real value comes from understanding what that number means and how it can be used to guide training.
A laboratory-grade VO₂ max test provides far more information than simply estimating fitness from a smartwatch or online calculator. It allows us to establish an accurate baseline, identify training zones, monitor progress, assess cardiovascular fitness, and evaluate whether your current training programme is actually working.
One of the biggest misconceptions is that VO₂ max alone determines performance. While it’s an important measure of aerobic fitness, factors such as movement efficiency, lactate threshold, pacing strategy, strength, and sport-specific training all contribute to performance. That’s why we don’t just provide a score—we help you understand how to use the data to improve.
Frequently Asked Questions
Is a higher VO2 max always better?
Generally, a higher VO2 max indicates greater aerobic fitness. However, it should always be viewed alongside your goals, training background, and overall health.
What is the average VO2 max for my age?
The average score varies by age and sex. The tables above provide a useful guide, but individual factors can influence what is considered good for you.
Can VO2 max predict longevity?
VO2 max is one of the strongest indicators of cardiorespiratory fitness, which research has linked to long-term health and longevity.
Where can I get a VO2 max test in Maidenhead?
Active Health Clinics offers VO2 max testing in Maidenhead using the VO2 Master system. Testing can be carried out on a treadmill, Wattbike, rowing machine, or your own bike using our Bluetooth turbo trainer.
Ready to Discover Your VO2 Max?
Whether you’re training for an event, looking to improve performance, or simply interested in your long-term health, VO2 max testing provides valuable insights into your fitness.
Book your VO2 max test at Active Health Clinics in Maidenhead and discover how your fitness compares for your age—and what you can do to improve it.
