VO2 Max Calculator
Estimate your VO2 max — the maximum amount of oxygen your body can utilize during exercise. Choose from multiple testing methods: Cooper 1.5 mile run, 1-mile walk, or race time prediction.
How to Use This VO2 Max Calculator
- Select a Test Method — Cooper Run, 1-Mile Walk, or Race Time.
- Cooper Run: Run as far as you can in 12 minutes and enter the distance in meters.
- 1-Mile Walk: Walk 1 mile at a brisk pace and enter your time, heart rate, age, and weight.
- Race Time: Enter a recent race distance and finish time for VO2 max estimation.
- Click Calculate VO2 Max to see your estimated VO2 max, fitness category, and percentile ranking.
Formula
1-Mile Walk: VO2max = 132.853 − (0.0769 × Weight) − (0.3877 × Age) + (6.315 × Gender) − (3.2649 × Time) − (0.1565 × HR)
Gender variable: Male = 1, Female = 0. The Cooper method uses distance covered in 12 minutes. The walk test formula is the Keytel et al. (2005) equation. Race time estimates use published conversion tables.
Examples
Cover 2,800 meters in 12 minutes:
VO2max = (2,800 − 504.9) / 44.73 = 51.3 ml/kg/min (Excellent)
Cover 2,100 meters in 12 minutes:
VO2max = (2,100 − 504.9) / 44.73 = 35.7 ml/kg/min (Fair)
Finish 5K in 22 minutes:
Estimated VO2max = 47.5 ml/kg/min (Excellent)
Frequently Asked Questions
What is VO2 max?
VO2 max is the maximum rate at which your heart, lungs, and muscles can effectively use oxygen during exercise. It is measured in milliliters of oxygen per kilogram of body weight per minute (ml/kg/min) and is widely considered the best indicator of cardiovascular fitness.
What is a good VO2 max?
For adults, a VO2 max of 45+ is considered excellent, 38–44 is good, 30–37 is average, and below 30 is poor. Elite endurance athletes can exceed 70–80 ml/kg/min. VO2 max varies by age, sex, and fitness level.
How can I improve my VO2 max?
High-intensity interval training (HIIT) is the most effective way to improve VO2 max. Incorporate 3–4 sessions per week of intervals at 90–100% of max heart rate, combined with steady-state endurance training. Consistency over months yields the best results.
Is VO2 max from running accurate?
Field tests like the Cooper run provide reasonable estimates (within 3–5 ml/kg/min of lab tests) for most people. Lab-based metabolic testing with a mask is the gold standard. Field estimates are useful for tracking fitness trends over time.