Health & Fitness

VO2 Max Calculator

Estimate your VO2 max using the Cooper test.

Run as far as you can in 12 minutes, then enter the distance covered to estimate your VO2 max — a key measure of cardiovascular fitness.

Enter a valid distance.

Estimated VO2 Max

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ml/kg/min

How to Use This Tool

  1. Run as far as possible in exactly 12 minutes (the Cooper test), ideally on a track for accurate distance measurement.
  2. Enter the distance covered.
  3. Click Calculate for your estimated VO2 max.

The Cooper Test Formula

VO2 Max = (Distance in meters − 504.9) ÷ 44.73

Developed by Dr. Kenneth Cooper, this field test estimates VO2 max — the maximum rate of oxygen your body can utilize during intense exercise, and a widely used indicator of aerobic fitness — based on how far you can run in exactly 12 minutes.

Why VO2 Max Matters

Higher VO2 max generally indicates better cardiovascular fitness and is associated with better athletic endurance performance and, at a population level, better long-term cardiovascular health outcomes.

Limitations of the Cooper Test

This field test is a practical estimate, not a lab-precise measurement — actual VO2 max testing requires specialized equipment measuring oxygen consumption directly during a graded exercise test. Pacing strategy, motivation, running surface, and weather can all affect your 12-minute distance and thus the estimate's accuracy.

General VO2 Max Reference Ranges

VO2 max norms vary significantly by age and sex, with well-trained endurance athletes often scoring considerably above average — consult age/sex-specific normative tables for meaningful context on your result.

Frequently Asked Questions

How accurate is the Cooper test compared to a lab VO2 max test?

It provides a reasonable field estimate but is less precise than laboratory testing with direct gas analysis — pacing, motivation, and running surface all introduce some variability into the result.

What is considered a good VO2 max?

This varies significantly by age and sex — well-trained endurance athletes typically score well above average for their demographic. Consult age- and sex-specific normative tables to properly contextualize your result.

This calculator is provided for general informational and estimation purposes only. Results should not be treated as professional financial, tax, legal, medical, or engineering advice. Always verify critical calculations with a qualified professional or official source before making decisions.