VO₂ Max Calculator

Estimate your aerobic fitness level using the Rockport 1-Mile Walk Test. VO₂ Max is a key indicator of your cardiovascular endurance.

What is VO₂ Max?

VO₂ Max measures the maximum amount of oxygen your body can utilize during intense exercise. It’s considered the gold standard of cardiovascular fitness. A higher VO₂ Max means your body is more efficient at using oxygen to produce energy.

VO₂ Max Classification (Age 20-29)

CategoryMenWomen
Excellent> 60> 56
Good52–6047–56
Average42–5138–46
Poor< 42< 38

Reference: American College of Sports Medicine (ACSM).

Calculate Your VO₂ Max

Based on the Rockport 1-Mile Walk Test. Walk one mile (1.6 km) as fast as you can and enter the results below.

Maintained by Live Fitness Check. Last updated: August 9, 2026. How we test our calculators .

About This Calculator

VO₂ Max Calculator estimates aerobic fitness from age, sex, body weight, walking time and exercise heart rate. It is designed to give a quick, understandable estimate from age, sex, weight, walking time and post-exercise heart rate so the result can be used as a starting point for learning, tracking or a more informed discussion.

Methodology

Inputs used: Age, sex, weight, walking time and post-exercise heart rate.
Calculation approach: The calculator applies the configured field-test prediction equation to the submitted walking-test values.
Interpretation: Results are presented as an estimate and should be read together with the limitations described below.

Sources

Disclaimer
This calculator is for general informational and educational use. A field estimate is not equivalent to laboratory cardiopulmonary exercise testing and can be affected by pacing, terrain, medications and measurement error. Do not use the result as a diagnosis, emergency assessment, or a replacement for advice from an appropriately qualified health professional when medical decisions are involved.

Frequently Asked Questions

What does the VO₂ Max Calculator estimate?

Estimates aerobic fitness from age, sex, body weight, walking time and exercise heart rate.

How is this result calculated?

The calculator applies the configured field-test prediction equation to the submitted walking-test values. The calculation uses age, sex, weight, walking time and post-exercise heart rate.

How should I use the result?

A field estimate is not equivalent to laboratory cardiopulmonary exercise testing and can be affected by pacing, terrain, medications and measurement error. Use the number as an estimate and consider professional advice when the result may affect health, treatment, pregnancy, nutrition, exercise safety or another important decision.