Running Pace Calculator
Calculate your average running pace for any distance or race.
Run Details
Hours
Minutes
Seconds
Average Pace
0:00
per mile
You will run 3.10686 miles at a 0:00 / mi pace.
Last updated: July 2026
Pacing is Everything in Distance Running
Whether you're trying to break a 2-hour half marathon, qualify for Boston, or just want to know how fast you ran your neighborhood loop, a pace calculator is an essential tool. Proper pacing ensures you don't start a race too fast and burn out before the finish line.
How to Use This Tool
Enter your distance and total time, and the calculator instantly works out your average pace per mile or kilometer. Use the preset buttons for common race distances, or enter your own — switching between miles and kilometers automatically converts the distance you've entered.
Frequently Asked Questions
Speed is measured in distance over time (e.g., Miles Per Hour). Pace is measured in time over distance (e.g., Minutes Per Mile). Runners almost exclusively use Pace.
A negative split means running the second half of a race or run faster than the first half. It is widely considered the optimal racing strategy for long distances.
To break 4 hours in the marathon (26.2 miles), you need to maintain an average pace of 9 minutes and 9 seconds per mile, or 5 minutes and 41 seconds per kilometer.
Breaking 2 hours in the half marathon requires almost the same pace as a sub-4-hour marathon: about 9 minutes 9 seconds per mile, or 5 minutes 41 seconds per kilometer.
No, it solves for pace only, based on the distance and time you enter. To back into distance or time instead, you'd rearrange the same equation by hand.
Yes, toggling the unit automatically converts your entered distance so the total distance stays the same, rather than reinterpreting the same number under the new unit.
No, it calculates a straightforward mathematical average pace from your raw distance and time. Hilly or technical terrain will feel harder than flat terrain at the same calculated pace.
It varies widely by age, sex, and running experience, so there's no single target. Many beginners average somewhere around 10 to 14 minutes per mile — the more important goal is a pace you can hold steady for the whole distance.