VO₂ Max Estimator
Cooper test, Rockport walking test, or 1.5-mile run estimates.
- Calculators
- Free to use
- Runs in your browser
Your input
Set your options
Run VO₂ Max Estimator
Private by default. Runs entirely in your browser — files never uploaded.
Three steps
How to use VO₂ Max Estimator
- Step 01
Pick your input
Paste your text into the box above.
- Step 02
Configure & run
Adjust the options (method, distance meters, time minutes, age, sex, weight kg, finishing hr) and click Run. Everything happens in your browser via WebAssembly.
- Step 03
Download the result
A JSON document is downloadable below.
This tool runs entirely in your browser. Your file is never uploaded to our servers.
About vo₂ max estimator
Cooper test, Rockport walking test, or 1.5-mile run estimates. It sits in the calculators shelf alongside 140 other calculators tools, needs no account, and keeps the same behaviour whether you open it here or call it through the REST API.
It works from what you type in rather than a file and gives back JSON. The work happens in your browser, so nothing is sent to us at all and the tool keeps working offline. The same operation is available programmatically at POST /v1/calc/vo2-max-calculator.
VO₂ Max Estimator questions
Does VO₂ Max Estimator upload my file?
No. VO₂ Max Estimator runs as WebAssembly inside this browser tab: the file is read from your disk by the page, processed on your own machine, and handed straight back. It is never sent anywhere, so there is nothing for us to store or delete.
Do I need an account to use VO₂ Max Estimator?
No. VO₂ Max Estimator works without signing in, and that is not a trial — it is how the free tier works. An account only matters for things that need one to exist at all: larger server jobs against your quota, API keys, saved workflows and billing.
Can I run VO₂ Max Estimator from my own code?
Yes. Every tool on the site is reachable from the REST API with the same slug — `vo2-max-calculator` — and the same options as this page, so anything you can do here you can automate against your own files.