# VO2 Max Calculator

> Estimate VO2 max from two published field tests: the Cooper 12-minute run and the Rockport 1-mile walk. Shows the equation used and the group of people it was developed in. A field-test estimate, not a laboratory measurement.

**URL:** https://www.calculatoranswers.com/vo2-max-calculator
**Category:** Health

## Quick Answer

Estimate VO2 max in mL/kg/min from a field test. Pick the Cooper 12-minute run or the Rockport 1-mile walk, enter your result, and the calculator runs that protocol published equation. No fitness rating is assigned.

## Definition

VO2 max, or maximal oxygen uptake, is the maximum rate of oxygen consumption measured during incremental exercise, reflecting an individual's cardiorespiratory fitness and aerobic endurance. A VO2 max calculator estimates this metric from a published field test rather than measuring it. Two protocols are implemented: the Cooper twelve-minute run (Cooper 1968) and the Rockport one-mile walk (Kline 1987), each with its own equation and its own source. By entering the test result alongside the inputs that protocol requires, the calculator runs the published regression and reports an estimate in mL/kg/min. It assigns no fitness category, because a defensible one needs a cited normative table matched to age, sex and population. Athletes and coaches use this utility to track cardiovascular improvement and design endurance training intensities.

## How to Use

1. **Choose a field test** — Select the field test you completed, such as the Cooper run or Rockport walk.
2. **Enter personal details** — For the Rockport walk, enter age, the sex term the regression takes, and body weight in pounds. The Cooper run needs none of these.
3. **Input test performance** — Enter your test duration, distance covered, or post-exercise heart rate as required.
4. **View VO2 max rating** — Read your estimated VO2 max score, fitness classification, and relative percentile ranking.

## Disclaimer

This calculator provides estimates for educational and planning purposes. Always consult a qualified professional for specific advice on financial, medical, legal, or other regulated decisions.

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