Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Sports
VO2 Max Calculator
Estimate your VO2 max — your body's maximum oxygen-processing capacity — from a timed run. Used by athletes and coaches to benchmark aerobic fitness and track training progress.
Fill in the required fields to see your result.
Sports
One Rep Max Calculator
Estimate the maximum weight you can lift for a single rep from a sub-maximal set. Use it to set training zones, track strength progress, or compare lifts across exercises.
Fill in the required fields to see your result.
Key differences
| VO2 Max Calculator | One Rep Max Calculator | |
|---|---|---|
| Category | Sports | Sports |
| Inputs required | 4 | 3 |
| Result | VO2 Max (ml/kg/min) | Estimated 1RM (lbs) |
| What it does | Estimate your VO2 max — your body's maximum oxygen-processing capacity — from a timed run. Used by athletes and coaches to benchmark aerobic fitness and track training progress. | Estimate the maximum weight you can lift for a single rep from a sub-maximal set. Use it to set training zones, track strength progress, or compare lifts across exercises. |