Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Running
Running Pace Calculator
Convert between finish time, distance, and pace for any running workout or race. Use it to plan race strategy, set treadmill speed, or analyze a completed run.
Fill in the required fields to see your result.
Running
Marathon Time Predictor
Predict your marathon finish time from a recent 5K, 10K, or half marathon result using empirical scaling factors tuned to typical recreational runners. Use it to set a realistic goal before your first marathon or to validate a training cycle.
Fill in the required fields to see your result.
Key differences
| Running Pace Calculator | Marathon Time Predictor | |
|---|---|---|
| Category | Running | Running |
| Inputs required | 5 | 2 |
| Result | Pace per Kilometer (seconds) | Predicted Marathon Time (minutes) |
| What it does | Convert between finish time, distance, and pace for any running workout or race. Use it to plan race strategy, set treadmill speed, or analyze a completed run. | Predict your marathon finish time from a recent 5K, 10K, or half marathon result using empirical scaling factors tuned to typical recreational runners. Use it to set a realistic goal before your first marathon or to validate a training cycle. |