Running Pace Calculator

Find your pace, finish time or distance for any run, with per-mile and per-kilometer pace and speed.

What Do You Want to Find?
Times: 52:30 or 1:45:00.
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Result
Pace per mile
Pace per km
Speed
At this pace
Work

Saved Calculations

Items you add are saved in this browser.

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How to Calculate Running Pace

Pace = time ÷ distance   Time = pace × distance   Distance = time ÷ pace

1 mile = 1.609344 km. A half marathon is 21.0975 km (13.1 mi) and a marathon 42.195 km (26.2 mi).

Worked Example

Tips

Times can be typed as seconds, m:ss or h:mm:ss. The race times listed assume you hold the same pace, which gets harder as distance grows; the marathon finish time calculator adjusts for that.