Tiny Toolkit

Pace Calculator

Solve for any one of three running variables — pace, finish time, or distance — given the other two. Switch between kilometers and miles, and toggle between find-pace, find-time, and find-distance modes. Useful for race planning, training target-setting, and reviewing Strava or Garmin data.

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Frequently Asked Questions

What is running pace?
Running pace is the time it takes to cover one unit of distance (typically one kilometer or one mile), expressed as minutes:seconds per km or per mile.
How do I calculate my finish time from a pace?
Use the 'Find time' mode — enter your distance and pace per km/mile, and the calculator multiplies them to give your estimated finish time.
What pace do I need to run a sub-4-hour marathon?
A marathon is 42.195 km (26.22 mi). To finish in under 4 hours, you need a pace faster than 5:41 per km (9:09 per mile).

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