Running Pace Calculator
Turn a distance and a time into pace per mile, pace per kilometer and speed.
| Pace per mile | 8:51 |
|---|---|
| Pace per km | 5:30 |
| Speed | 6.78 mph (10.91 km/h) |
How to use it
- Enter the distance (5 for a 5K, 13.1 miles for a half, 26.2 for a marathon).
- Enter the time as mm:ss or h:mm:ss.
Formula
Pace = time ÷ distanceSpeed = distance ÷ time
Example
A 4:00:00 marathon (26.2 miles) is 240 minutes ÷ 26.2 ≈ 9:10 per mile, or about 5:42 per kilometer.
Questions
What's a good 5K time?
It depends on age and experience. Finishing is the goal for a first race; many recreational runners finish between 25 and 40 minutes.
How do I convert pace per km to per mile?
Multiply by 1.609. A 5:00/km pace is about 8:03/mile.
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Last reviewed 2026-10-10. Found a mistake? Tell us.