Does this VO2 Max Calculator save my inputs?

No. The calculation runs in your browser and the page only displays the result for the values currently entered.

Why might my result differ slightly from another calculator?

Small differences usually come from rounding, unit choices, default assumptions, or a different formula variant. Check the inputs and formula assumptions first.

VO2 Max Calculator

Estimate maximal oxygen uptake from fitness test measurements.

Biologyvo2-maxexercise-physiologyfitness

Max heart rate

bpm

Resting heart rate

bpm

VO2 Max Calculator Formula

VO2 max ≈ 15.3 × max heart rate / resting heart rate

Enter the known values and the calculator applies this formula to produce the main result, plus supporting values that help you check the answer.

Symbol	Variable	Description
maxHeartRate	Max heart rate	Max heart rate, entered in bpm.
restingHeartRate	Resting heart rate	Resting heart rate, entered in bpm.

How to Use the VO2 Max Calculator

1
Enter the known values
Fill in the fields and confirm that the units match the formula shown on the page.
2
Click Calculate
The primary answer appears in the highlighted row, with related check values underneath.
3
Read the result
Higher VO2 max estimates generally indicate stronger cardiorespiratory fitness.

What This Calculator Is Best For

Use it to estimate aerobic capacity from maximum and resting heart rate.

Track fitness trends.
Compare training blocks.
Estimate aerobic capacity quickly.

How to Read the Result

Higher VO2 max estimates generally indicate stronger cardiorespiratory fitness.

Before You Rely on the Result

Heart-rate-ratio formulas are screening estimates, not lab gas-exchange measurements.

VO2 Max Calculator FAQ

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