VO₂ Max Calculator

This VO₂ Max Calculator estimates your aerobic fitness level using heart rate data. VO₂ max is one of the best indicators of cardiovascular endurance and overall fitness.

Resting heart rate should be measured at complete rest.

Your VO₂ Max

VO₂ Max
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Fitness Level
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What Is VO₂ Max?

VO₂ max represents the maximum amount of oxygen your body can utilize during intense exercise. It is measured in milliliters of oxygen per kilogram of body weight per minute (ml/kg/min).

Why VO₂ Max Is Important

  • Measures cardiovascular endurance
  • Indicates aerobic fitness level
  • Predicts athletic performance
  • Associated with long-term health and longevity

How VO₂ Max Is Estimated

This calculator uses the Heart Rate Ratio Method:

VO₂ Max = 15.3 × (Maximum Heart Rate ÷ Resting Heart Rate)

This method is widely used for non-laboratory estimation of VO₂ max.

VO₂ Max Fitness Categories

  • Low: Poor cardiovascular fitness
  • Average: Normal fitness for age
  • Good: Above-average aerobic capacity
  • Excellent: High endurance fitness

Frequently Asked Questions

VO₂ max values vary by age and gender. Generally, values above 45 ml/kg/min for men and 38 ml/kg/min for women are considered good.
No. VO₂ max is useful for anyone interested in cardiovascular health and fitness, not just athletes.
Yes. Regular aerobic exercise such as running, cycling, and interval training can significantly improve VO₂ max.
This calculator provides an estimate. Laboratory testing provides the most accurate VO₂ max measurement.