What this calculator does
Bruce protocol VO₂max works out estimated maximal oxygen uptake from total time on a standard Bruce treadmill test. Enter your own figures above and the answer updates as you type: nothing is fixed in the code, so the result reflects exactly the numbers you supply.
The formula this calculator evaluates is printed under the tool and explained below, so you can check the working by hand or reuse it in a spreadsheet.
The formula
FormulaMen: VO₂max = 14.8 − 1.379T + 0.451T² − 0.012T³; Women: VO₂max = 4.38T − 3.9 (T = minutes on treadmill)
The inputs explained
| Field | What to enter |
|---|---|
| Time on treadmill (min) | A number, measured in min. Starts at 12. |
| Sex | Choose from Male, Female. |
Worked examples
Every figure in the tables below is produced by this page’s own calculator at build time, so the numbers and the tool always agree. Select any row to load that scenario.
How the answer changes with time on treadmill
Every other input is held at the calculator’s starting values while time on treadmill varies. Select any row to load that scenario into the calculator.