VO2 max Estimate your VO₂max

Choose a method to estimate your VO₂max:

Jack Daniels method, author of the famous book "Daniels' Running Formula".
Enter a distance (5k, 10k, half, marathon…) and your race time.

VO₂max calculation does not depend on age, only on your performance.

Run 12 minutes as hard as you can (Cooper test) and indicate the distance covered.

💡 Tip: 1 mile ≈ 1,609 m. For example, 1.5 miles ≈ 2,414 m.

VO₂max calculation does not depend on age, only on your performance.

The Beep Test (also called the 20-meter shuttle run or Luc Léger test): run 20-meter (~66 ft) shuttles at increasing speed controlled by audio beeps.
Indicate the last complete level you reached.

The test starts at 8.5 km/h / 5.3 mph (level 1) and increases by 0.5 km/h / 0.3 mph per level. Each level lasts about 1 minute.

Level not reached
A level is generally considered NOT reached if:

• the runner is approximately 2 meters or more behind the line at the beep,
• the delay repeats on two consecutive beeps,
• the runner stops, clearly slows down, or voluntarily quits.

In practice, protocols often state: two consecutive delays = test stops.

Important note: A single slight delay (about 1 meter) can be tolerated if caught up at the next beep. If the runner never catches up the delay, even if continuing to run, the final level is not validated.

ℹ️ VO₂max calculation does not depend on age, only on your performance.

Method based on resting heart rate (RHR) and age.
Measure your RHR in the morning when you wake up, before getting out of bed.

Measure your RHR in the morning when you wake up, lying down, before getting out of bed. A low RHR (50-60 bpm) generally indicates good fitness.

Average VO₂max by age and profile (sedentary, active, trained)
AgeSedentaryAverage activeWell trained
20 yrs385065
25 yrs375065
30 yrs364862
35 yrs344659
40 yrs324456
45 yrs304253
50 yrs284050
55 yrs263746
60 yrs243543
65 yrs223240
70 yrs203037

Values in ml/kg/min. Decline is approximately 10% per decade after age 25. Regular training significantly slows this decline.

VO₂ max: definition, calculation and impact on your running performance

What is VO₂ max?

VO₂ max is the maximum amount of oxygen your body can use each minute during intense effort. It's expressed in ml of oxygen per kg of body weight per minute (ml/kg/min). The higher your VO₂ max, the more your cardio-respiratory system can deliver oxygen to your muscles, and the more powerful your endurance "engine" is.

In practice, VO₂ max is a very good indicator of:

  • your endurance level,
  • your ability to sustain high paces for long periods,
  • and even your long-term cardiovascular health.

The essential: You can see VO₂ max as the size of your engine. Then, training helps you learn to use it efficiently.

VO₂ max, performance and health

In running, a high VO₂ max is an advantage: with equivalent training, a runner with a higher VO₂ max can run faster at the same relative intensity. This is one reason why the best marathoners often have very high VO₂ max values (often >70 ml/kg/min).

But VO₂ max isn't just for performance: it's also a health marker. Studies show that a higher VO₂ max is associated with a lower risk of cardiovascular disease and premature mortality. That's why some medical institutions propose using it as a "vital sign" just like blood pressure.

How to measure or estimate your VO₂ max?

1) Laboratory test (the reference)

The most accurate way to measure VO₂ max is a progressive exercise test in a lab or medical center, with a mask that measures gas exchange (O₂ and CO₂) while speed or slope increases.

This is the method used with elite athletes or in medical settings.

2) GPS watches and field tests

For most runners, we use estimates:

  • Automatic watch calculation (Garmin, Coros, Polar, etc.) from heart rate and speed,
  • Field tests like the Cooper test (distance covered in 12 min), shuttle run (beep test), or equations from a 5k / 10k.

These methods give an estimate with some margin of error, but sufficient to track your progress over months.

3) Important reminder

The important thing isn't to have a "perfect" number, but to follow the trend: if your estimated VO₂ max gradually rises, it means your aerobic capacities are improving.

Once your VO₂max is estimated, you can:

Good / poor VO₂ max levels

Here are indicative standards based on Cooper Institute and Garmin references:

Men 20–29 years

LevelVO₂ max (ml/kg/min)
Excellent> 55
Very good50 – 55
Good45 – 50
Average40 – 45
Poor< 40

Women 20–29 years

LevelVO₂ max (ml/kg/min)
Excellent> 50
Very good44 – 50
Good39 – 44
Average35 – 39
Poor< 35

Note: These zones are approximate and based on reference standards (Cooper Institute / Garmin). Exact values vary by age, sex and source used.

How to improve your VO₂ max?

VO₂ max is highly trainable: with regular training, you can increase it by 10 to 25% or more, especially when starting out.

The most effective methods:

  • Regular base endurance (easy runs): foundation of volume.
  • Sessions near vVO₂max pace (velocity at VO₂max, also called MAS — Maximal Aerobic Speed): for example 3 to 6 × 3 min at a very sustained pace, with jogging recovery. You can use our VO₂max ↔ vVO₂max converter to find your speed.
  • HIIT / intense intervals of 2 to 5 minutes at ~90–95% of your maximum heart rate, several times a week for already well-trained runners.

Of course, you must adapt the content according to level, age and injury history.

Advice: The goal is not to be flat out all the time, but to combine volume in endurance with some targeted high-intensity sessions.

Limitations: what VO₂ max doesn't tell you

Two runners with the same VO₂ max can have very different performances. What also matters:

  • running economy (your stride, technique, energy cost),
  • your fatigue tolerance and race management,
  • your muscular strength and shock resistance,
  • your race weight, sleep, nutrition…

VO₂ max is therefore an important indicator but not the only one: it's one data point to track among others (paces, heart rate, feelings, race times).

VO₂ max of famous runners

To put these values into perspective, here are some measured or estimated VO₂ max values of world-class runners and endurance athletes:

Kilian Jornet

≈ 89-92 ml/kg/min

Trail and skyrunning champion, multiple UTMB winner, holder of climbing records (Mont Blanc, Everest).

Eliud Kipchoge

≈ 84 ml/kg/min

Two-time Olympic marathon champion, first man under 2 hours (1:59:40 in 2019), official world record 2:01:09.

Jakob Ingebrigtsen

≈ 84-85 ml/kg/min

2021 Olympic 1500m champion, European record holder in 2000m and 3000m, world medalist in 5000m.

Mo Farah

≈ 80 ml/kg/min

Four-time Olympic champion (5000m and 10000m in 2012 and 2016), six-time world champion on track.

Paula Radcliffe

≈ 70 ml/kg/min

Women's marathon world record holder for 16 years (2:15:25 in 2003), three-time world cross-country champion.

Sifan Hassan

≈ 72 ml/kg/min

Triple Olympic medalist in Tokyo 2021 (gold 5000m, 10000m, bronze 1500m), 10000m world record holder.

Bjørn Dæhlie

96 ml/kg/min

Cross-country skiing legend, 8 Olympic gold medals. Highest VO₂ max recorded in laboratory testing.

Grete Waitz

≈ 73 ml/kg/min

9-time New York Marathon winner, 1983 world marathon champion, pioneer of women's marathon running.

Note: These values come from laboratory tests or estimates based on performances. VO₂ max alone doesn't explain everything: running economy, lactate capacity, and mental resilience are equally crucial for performance.

Frequently asked questions about VO₂max

What is VO₂max?

VO₂max is the maximum amount of oxygen your body can use during intense exercise. It is expressed in ml/kg/min and reflects the power of your cardiorespiratory system. It is a key indicator of aerobic fitness and cardiovascular health.

What is a good VO₂max?

It depends on age and sex. For a 30-year-old man, a VO₂max of 42–47 ml/kg/min is good, and above 52 is excellent. For women, thresholds are about 10-15% lower. Check the tables above for your age group, based on Cooper Institute references.

What is the difference between VO₂max and MAV?

VO₂max measures maximum oxygen consumption (in ml/kg/min), while MAV (Maximum Aerobic Velocity) is the running speed at which this consumption is reached. You can convert one to the other using our VO₂max ↔ MAV converter.

How to improve your VO₂max?

The most effective methods are regular easy running and interval sessions at 90-95% of maximum heart rate (3-6 × 3 min). A beginner can improve by 10-25% within a few months. Adjust your training paces accordingly.

Does VO₂max decrease with age?

Yes, it declines by about 1% per year after age 25-30. However, regular training significantly slows this decline. Use our fitness age calculator to see where you stand compared to your actual age.

How to estimate VO₂max without a lab test?

Use the calculator above with 4 methods: the Jack Daniels formula from a race time, the Cooper test (12 min), the Beep test, or via resting heart rate. You can then predict your race times across various distances.