What is a good VO2 max?

Average VO2 max for men 30–39 years: 39–44 mL/kg/min. Good: 44–49. Excellent: 49–57. For women 30–39: average 29–34, good 34–39, excellent 39–47. Elite endurance athletes score 65–90+. Improving from poor to average fitness has dramatic health benefits even without reaching elite levels.

How do I calculate my VO2 max?

The Cooper 12-Minute Run Test: run as far as possible in 12 minutes; VO2 max = (distance in meters − 504.9) ÷ 44.73. The Rockport 1-Mile Walk Test works for those who can't run. Consumer wearables (Garmin, Apple Watch, Fitbit) estimate VO2 max from HR and pace data during outdoor runs.

How long does it take to improve VO2 max?

Noticeable improvement in 4–8 weeks with consistent training (3–5 sessions/week including high-intensity intervals). Significant improvement (10–15%) occurs over 3–6 months. Untrained individuals see larger and faster gains than trained athletes. VO2 max gains plateau after several years of training.

What exercises increase VO2 max the most?

High-intensity interval training (HIIT), particularly the 4×4 protocol (4 minutes at 85–95% max HR, 3 min recovery), is the most researched method. Running, cycling, rowing, and swimming all produce VO2 max gains — any activity using large muscle groups at high intensity works.

Does VO2 max decline with age?

Yes — VO2 max declines approximately 1% per year after age 25 in sedentary individuals. In consistently trained individuals, the decline is 0.5% per year or less. Regular aerobic training can offset most age-related VO2 max decline, with 65-year-old masters athletes often scoring higher than sedentary 35-year-olds.

VO2 Max Calculator: What It Is, How to Estimate It & Why It Predicts Longevity

Estimate VO2 max from your running performance or heart rate. Understand why VO2 max is the strongest single predictor of longevity and how to improve it.

Related Calculators

VO2 Max Calculator
Estimate VO2 max using the Cooper 12-minute run formula from distance covered in meters.
Wilks Calculator
Calculate a Wilks score from body weight, total lifted weight and sex using the classic Wilks coefficient formula.
Heart Rate Zone Calculator
Estimate training heart-rate zones from age and resting heart rate using the Karvonen heart-rate-reserve method.
One Rep Max Calculator
Estimate your one-rep max (1RM) from a submaximal set, using the Epley formula.
Target Heart Rate Calculator
Calculate your target heart rate training zone from your age.

What VO2 Max Is

VO2 max is the maximum rate at which your body can consume oxygen during intense exercise, expressed in milliliters of oxygen per kilogram of bodyweight per minute (mL/kg/min). It measures your cardiovascular and muscular system's capacity to deliver and use oxygen.

Higher VO2 max = greater aerobic capacity = better endurance performance.

Beyond athletic performance, VO2 max is the strongest single predictor of all-cause mortality identified in large population studies. A study in JAMA (Mandsager et al., 2018) found that low cardiorespiratory fitness carries greater mortality risk than smoking, hypertension, or diabetes — and that improving from "low" to "below average" fitness reduces mortality risk by 50%.

VO2 Max Estimation Methods

1. Cooper 12-Minute Run Test:

VO2 max (mL/kg/min) = (distance in meters − 504.9) ÷ 44.73

Example: Run 2,600 meters in 12 minutes: VO2 max = (2,600 − 504.9) ÷ 44.73 = 46.8 mL/kg/min

2. Rockport 1-Mile Walk Test:

VO2 max = 132.853 − (0.0769 × weight in lbs) − (0.3877 × age) + (6.315 × gender: M=1, F=0) − (3.2649 × 1-mile walk time in minutes) − (0.1565 × heart rate at end of walk)

3. From Heart Rate Data (Firstbeat/Garmin estimation):

VO2 max ≈ 15 × (Max HR ÷ Resting HR)

This provides a rough estimate — consumer fitness devices use more sophisticated algorithms with GPS pace and HR data.

VO2 Max Norms by Age

Age	Poor	Below Average	Average	Good	Excellent	Superior
Men
20–29	< 38	38–43	43–48	48–53	53–61	> 61
30–39	< 34	34–39	39–44	44–49	49–57	> 57
40–49	< 30	30–35	35–41	41–46	46–53	> 53
50–59	< 25	25–31	31–36	36–41	41–49	> 49
60+	< 21	21–26	26–32	32–37	37–44	> 44
Women
20–29	< 28	28–33	33–38	38–43	43–51	> 51
30–39	< 24	24–29	29–34	34–39	39–47	> 47
40–49	< 20	20–25	25–30	30–35	35–43	> 43

Elite marathon runners: 65–75 mL/kg/min. Cyclists like Tour de France riders: 70–90 mL/kg/min. The highest ever recorded is Oskar Svendsen (Norway) at 97.5 mL/kg/min.

How to Improve VO2 Max

VO2 max is highly trainable — untrained individuals can improve by 15–25% with consistent training. Elite athletes can improve 3–5% from an already high baseline.

Most effective methods:

1. High-Intensity Interval Training (HIIT): 4×4 intervals: 4 minutes at 85–95% max HR, 3 minutes recovery, repeated 4 times. 2–3× per week. This protocol is among the most researched for VO2 max improvement.

2. Zone 4–5 Training: 20–40 minutes at lactate threshold pace (Zone 4) 1–2× per week significantly raises VO2 max.

3. Consistent Aerobic Base (Zone 2): Building total aerobic volume over months and years raises the ceiling for VO2 max gains.

Why VO2 Max Predicts Longevity

Research consistently shows a dose-response relationship: each MET (metabolic equivalent, roughly correlated with VO2 max level) increase in cardiorespiratory fitness reduces all-cause mortality risk by ~13% (Kodama et al., 2009 meta-analysis of 33 studies, 102,980 participants).

Going from "low" (<7.9 METs) to "moderate" (8–10 METs) fitness is associated with a 50–70% reduction in cardiovascular and all-cause mortality — a larger effect than most pharmaceutical interventions.

Related Guides

Frequently Asked Questions

What is a good VO2 max?: Average VO2 max for men 30–39 years: 39–44 mL/kg/min. Good: 44–49. Excellent: 49–57. For women 30–39: average 29–34, good 34–39, excellent 39–47. Elite endurance athletes score 65–90+. Improving from poor to average fitness has dramatic health benefits even without reaching elite levels.
How do I calculate my VO2 max?: The Cooper 12-Minute Run Test: run as far as possible in 12 minutes; VO2 max = (distance in meters − 504.9) ÷ 44.73. The Rockport 1-Mile Walk Test works for those who can't run. Consumer wearables (Garmin, Apple Watch, Fitbit) estimate VO2 max from HR and pace data during outdoor runs.
How long does it take to improve VO2 max?: Noticeable improvement in 4–8 weeks with consistent training (3–5 sessions/week including high-intensity intervals). Significant improvement (10–15%) occurs over 3–6 months. Untrained individuals see larger and faster gains than trained athletes. VO2 max gains plateau after several years of training.
What exercises increase VO2 max the most?: High-intensity interval training (HIIT), particularly the 4×4 protocol (4 minutes at 85–95% max HR, 3 min recovery), is the most researched method. Running, cycling, rowing, and swimming all produce VO2 max gains — any activity using large muscle groups at high intensity works.
Does VO2 max decline with age?: Yes — VO2 max declines approximately 1% per year after age 25 in sedentary individuals. In consistently trained individuals, the decline is 0.5% per year or less. Regular aerobic training can offset most age-related VO2 max decline, with 65-year-old masters athletes often scoring higher than sedentary 35-year-olds.

Last updated 7/28/2026