Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Running
VO2 Max Calculator
Estimate your VO2 max (maximum oxygen uptake) from a timed run by combining distance, time, and age into a Cooper-style empirical formula. Use it as a benchmark for cardiovascular fitness and to track aerobic improvement across a training cycle.
Fill in the required fields to see your result.
Running
Training Zone Calculator
Calculate your personalized heart rate training zones using the Karvonen or percentage-of-max-HR method. Use it when structuring your weekly runs to target specific fitness adaptations.
Fill in the required fields to see your result.
Key differences
| VO2 Max Calculator | Training Zone Calculator | |
|---|---|---|
| Category | Running | Running |
| Inputs required | 3 | 4 |
| Result | Estimated VO2 Max (ml/kg/min) | Tempo Training Zone (bpm) |
| What it does | Estimate your VO2 max (maximum oxygen uptake) from a timed run by combining distance, time, and age into a Cooper-style empirical formula. Use it as a benchmark for cardiovascular fitness and to track aerobic improvement across a training cycle. | Calculate your personalized heart rate training zones using the Karvonen or percentage-of-max-HR method. Use it when structuring your weekly runs to target specific fitness adaptations. |