VO2 Max Calculator
Estimate your VO2 max (maximal oxygen uptake) from a 1.5-mile run time or a submaximal step test. Assess your aerobic fitness level.
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How to use this calculator
Based on the Cooper formula. Faster finish times produce higher VO2 max estimates. Units: mL/kg/min.
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Run 1.5 miles (2.4 km) at your maximum effort on a flat surface.
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Enter your exact finish time in minutes and seconds.
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Select your sex and age for an age-adjusted fitness category.
Frequently asked questions
What is VO2 max?
VO2 max is the maximum rate at which your body can consume oxygen during intense exercise. It is measured in mL of oxygen per kilogram of body weight per minute and is the gold standard measure of cardiovascular fitness.
How can I improve my VO2 max?
High-intensity interval training (HIIT) and tempo runs are the most effective methods. Consistent aerobic training over weeks and months produces measurable improvements. Elite endurance athletes have VO2 max values of 70–85 mL/kg/min.
Is the 1.5-mile test accurate?
Field tests like the Cooper 1.5-mile run give a reasonable estimate (within ±10–15% of lab-measured values). For clinical accuracy, a maximal treadmill test with metabolic measurement is needed.
VO2 Max Calculator — Aerobic Fitness Assessment
How to use the vo2 max
This vo2 max gives you instant, accurate results — no registration or download required. Enter your values above and get your result in seconds. The tool is free, works on all devices, and keeps your data private — nothing is stored or shared.
How the vo2 max works
The vo2 max calculator uses standard formulas used in health tracking, fitness planning, and wellness management. Enter your inputs, and the tool calculates the result instantly in your browser. No server-side processing means your data stays on your device. Results update in real time as you change inputs.
Why VO2 max matters for health
VO2 max is one of the strongest independent predictors of all-cause mortality and cardiovascular disease risk. Research shows that improving VO2 max from "poor" to "fair" has a greater impact on life expectancy than eliminating obesity or smoking.
Typical VO2 max values by age
Average values for untrained adults: males in their 20s typically score 44–51 mL/kg/min; females in their 20s score 35–43 mL/kg/min. Values decline roughly 1% per year after age 25 without training, but regular aerobic exercise can slow this decline significantly.
Vo2 max: how it works
This free tool provides a quick, evidence-based estimate for wellness planning. It uses standard formulas accepted by health professionals worldwide. Enter your measurements for an instant result — always follow up with a qualified practitioner for personal guidance.
Who uses this tool?
Athletes, fitness enthusiasts, nurses, and anyone monitoring their health use it as a starting point for wellness decisions. Share the output with your doctor or dietitian for a professional interpretation.
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →