VO2max tables are a quick way to benchmark your aerobic fitness. The value reflects your maximal oxygen uptake in ml/kg/min and is typically categorized by age and sex, helping you see where you stand relative to a reference population.
Key takeaways
1. VO2max declines with age and differs between women and men.
VO2max declines with age and differs between women and men. Research on functional centenarians demonstrates that exercise capacity continues declining even in the healthiest aging populations.
2. "Good" values depend heavily on the reference population.
3. Wearables provide estimates, not direct measurements.
Important: a VO2max table provides context, not a diagnosis. Values vary by testing method, sport, and individual factors. A lab measurement is not directly comparable to a smartwatch estimate.
Here you'll find a clear framework, a practical reference table, and – most importantly – how to use the metric without getting fixated on it.
Where VO2max Fits in the Big Picture
VO2max is a key marker of heart health & endurance. It describes how much oxygen your body can utilize during exercise. Higher values are generally associated with better aerobic performance.
Evidence suggests VO2max relative to body weight has health implications
But performance isn't just capacity. Threshold, movement efficiency, and recovery matter just as much. That's why your fitness can improve even when VO2max barely changes.
It also interacts with other areas: - Recovery: adaptations happen during recovery, not during the workout - Metabolism: aerobic capacity is closely tied to mitochondrial function - Frame: your body fat percentage affects relative values - Mind: consistency beats intensity
Quick take: how to read a VO2max table
A VO2max table classifies your maximal oxygen uptake by age and sex, usually into categories like "poor," "average," "good," and "excellent."
- VO2max declines with age and differs between women and men
- "Good" values depend on the reference population
- Wearables provide estimates, not direct measurements
- Trends over time matter more than single data points
Use tables for orientation – not as a judgment of your health.
Instead of guessing whether your smartwatch estimate is accurate, log your VO2max values and test conditions with the huuman app to track meaningful trends over time rather than getting distracted by daily fluctuations.
VO2max in 60 seconds
VO2max is the maximum amount of oxygen your body can use per minute. It's usually expressed relative to body weight (ml/kg/min), less often as an absolute value (L/min).
Relative values depend on body weight. If your weight drops, your VO2max can rise even if your actual performance hasn't changed. That's a common misinterpretation.
For more basics, see how to calculate VO2max.
VO2max Table: Values by Age & Sex
The table below is based on widely used reference systems such as the Cooper classification and similar datasets from training literature. Categories and cutoffs can vary slightly by source.
Women
- Age 20–29: very low < 28 | low 28–34 | average 35–43 | high 44–49 | very high > 49
- Age 30–39: very low < 27 | low 27–33 | average 34–41 | high 42–47 | very high > 47
- Age 40–49: very low < 25 | low 25--31 | average 32–39 | high 40–45 | very high > 45
- Age 50–59: very low < 24 | low 24–29 | average 30–36 | high 37–42 | very high > 42
Men
- Age 20–29: very low < 33 | low 33–38 | average 39–48 | high 49–55 | very high > 55
- Age 30–39: very low < 32 | low 32–37 | average 38–46 | high 47–53 | very high > 53
- Age 40–49: very low < 30 | low 30–35 | average 36–44 | high 45–51 | very high > 51
- Age 50–59: very low < 28 | low 28–33 | average 34–41 | high 42–47 | very high > 47
Sources: VO2max standard ratings, supplemented with reference values from Laufcampus.
How to read the table:
- Only compare values from the same measurement method
- Factor in your body weight
- Focus on trends, not single readings
What is a "good" VO2max?
There's no universal cutoff. A "good" VO2max is always relative to your age, sex, and activity level.
Example: VO2max of 50
- Woman, 35: likely "high" to "very high"
- Man, 35: more "average" to "high"
- Man, 55: generally "high"
Same number, very different meaning depending on context.
Why your VO2max fluctuates
Single readings often vary more than your actual fitness.
Common factors:
Common factors include medications that affect cardiovascular function. For instance, beta blockers are associated with reduced VO2max during exercise testing.
- Lack of sleep or high stress
- Heat, cold, or altitude
- Training fatigue or deload phases
- Illness or medication
- Measurement errors (pace or heart rate)
If you track your sleeping heart rate, you'll often see similar patterns tied to load and recovery.
Measurement methods: lab vs. field test vs. wearable
- Lab (spiroergometry): direct oxygen measurement, highest accuracy, but resource-intensive
- Field tests: based on performance (e.g., run time), influenced by conditions and motivation
- Wearables: estimate VO2max from heart rate and movement, model-dependent
Wearables are useful for tracking trends but aren't a replacement for lab testing. According to Apotheken Umschau, accuracy depends heavily on data quality and individual physiology.
Evidence and limitations
VO2max is well studied and clearly associated with endurance performance. There's extensive population-based reference data.
Well established:
- VO2max declines with age on average
- Training status strongly influences the value
- Higher values correlate with better endurance performance
Less certain:
- Exact comparability between studies and tables
- Accuracy of wearable estimates for individuals
- What a specific number means for your personal health or performance
Many tables are based on specific populations, so cutoffs can differ between sources.
Strategies to discuss with a professional
If you want to improve your VO2max, training literature commonly outlines these elements:
- Easy endurance work to build volume and base
- Targeted high-intensity efforts to drive adaptation
- Enough recovery to absorb training
A structured approach is often complemented by strength training – see calorie burn in strength training – or alternative modalities like rowing workouts.
More on implementation: how to increase VO2max.
Tracking and interpreting progress
A useful approach focuses on 8–12 week trends:
- Smoothed VO2max trend
- Morning resting heart rate
- HRV trend, e.g. via the HRV by age table or HRV values explained
- A standardized test (same route, same conditions)
Changes in body composition – like waist circumference in women – can also reflect relevant shifts.
Once you understand what's signal versus noise in your data, your huuman Coach can build personalized weekly plans that balance high-intensity work with proper recovery based on your actual readiness patterns rather than arbitrary schedules.
Signal vs. noise in VO2max
- Drop after a hard week → check recovery before questioning fitness
- Different devices, different values → stick to one system
- Lower value in heat → account for environment
- Weight loss increases the value → check absolute performance too
- Better pace at the same heart rate → strong performance signal
- Temporary HRV drop → can be a normal response to load
- Plateau in VO2max → gains may show up at threshold instead
- Sudden spike → often a model artifact, not real adaptation
FAQ
What are good VO2max values by age and sex?
"Good" means above average within your age and sex group. Tables help with orientation, but depend on the underlying population.
What should my VO2max be if I want to be fit?
Being in the mid-to-upper range of your age group is typically associated with solid everyday fitness.
Is a VO2max of 58 good?
For many middle-aged men, that's high. For young endurance athletes, it might be average. Context matters.
What does a VO2max of 50 mean?
Depending on age and sex, it can range from average to excellent. Use the table above to interpret it.
How accurate are smartwatch VO2max estimates?
Useful for trends, but not exact. Differences from lab measurements are common.
Why is my VO2max dropping despite training?
Common causes include fatigue, stress, or measurement variability. A short-term drop often isn't a real signal of declining fitness.
What matters more: VO2max or threshold?
For everyday performance and racing, threshold is often more actionable. VO2max still defines the ceiling.
More health topics to explore
- Heart & Cardio – Overview
- Understanding HRV: Charts, Normal Ranges, and What “Good” Really Means
- HIIT for Cardio: How to Do It Safely, Effectively, and Without Burning Out
- HIIT on an Elliptical: 3 Repeatable Workouts + How to Progress
References
- Garmin – VO2max standard ratings (Cooper classification, by age/sex)
- Laufcampus — Vo2max Tabelle Werte Nach Alter
- Apotheken-umschau — Vo2max Was Sie Ueber Den Wichtigsten Wert Fuer Ausdauersportler Wissen Muessen 1425389.Html
- Price MJ et al. — The effect of age and sex on peak oxygen uptake during upper and lower body exer (2024)
- Myers J et al. — A Reference Equation for Normal Standards for VO(2) Max: Analysis from the Fitne (2017)
- Priel et al. 2021 — The Impact of beta blockade on the cardio-respiratory system and symptoms during
- Radak et al. 2019 — Exercise effects on physiological function during aging.
- Rowland et al. 2007 — Evolution of maximal oxygen uptake in children.
About this article · Written by the huuman Team. Our content is based on peer-reviewed research and clinical guidelines. We follow editorial standards grounded in scientific evidence.
This article is for educational purposes only and does not constitute medical advice. Health and training decisions should be discussed with qualified professionals.
