Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
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.
Running
Altitude Pace Adjustment
Estimate how much slower your running pace will be at elevation compared to sea level. Use this before racing or training at altitude to set realistic effort targets and avoid blowing up early.
Fill in the required fields to see your result.
Key differences
| Training Zone Calculator | Altitude Pace Adjustment | |
|---|---|---|
| Category | Running | Running |
| Inputs required | 4 | 2 |
| Result | Tempo Training Zone (bpm) | Adjusted Pace (min/km) |
| What it does | 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. | Estimate how much slower your running pace will be at elevation compared to sea level. Use this before racing or training at altitude to set realistic effort targets and avoid blowing up early. |