Fill in two fields and leave the third blank, or edit any value to recalculate automatically.
Finish time Calculated
Pace (per mile) Calculated
Result
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How to use this running pace calculator
Enter any two of distance, finish time, or pace and leave the third blank — the calculator solves for the missing value automatically. Switch between miles and kilometers with the toggle at the top, or tap a race preset (5K, 10K, half marathon, marathon) to fill in a standard distance.
Pace is always shown as minutes and seconds per mile or per kilometer. Change any input and the result updates instantly, so you can experiment with different goal times or training paces.
Common uses for a pace calculator
- Marathon pace calculator — Set 26.2 miles and your goal finish time to find the min/mile or min/km you need to hold on race day.
- Half marathon pace calculator — Use the Half preset (13.1 mi / 21.1 km) to plan a sub-2:00 or other half marathon goal.
- 5K pace calculator — Enter 3.1 miles or 5 km with a target time to see the pace required for a PR.
- Calculate finish time from pace — Know your comfortable training pace? Enter distance and pace to estimate how long a race or long run will take.
- Convert min/mile to min/km — Toggle units to compare paces across GPS watches, treadmills, and international race results.
Example: A 3:30 marathon (26.2 miles in 3 hours 30 minutes) works out to 8:01 per mile or 4:59 per kilometer. Enter those values above to verify, or adjust the time to see how a faster or slower goal changes your required pace.
Train at the right pace for your goal
Every runner is different. Personalized coaching helps you know when to push and when to recover.