Running Pace Calculator
Calculate your running pace per kilometer and per mile, plus speed and race projections.
About this tool
Pace is the runner's native unit: minutes and seconds per kilometer or per mile. Enter any distance and finish time and this calculator returns your pace in both systems, your average speed, and projected finish times for common race distances at the same pace.
The race projections assume you hold the entered pace exactly, which gets harder as distance grows. Real world predictions between distances usually apply an endurance adjustment, so treat the marathon line as a ceiling rather than a forecast if your input was a 5K.
Frequently asked questions
What is a good running pace?
Recreational runners commonly fall between 5 and 7 minutes per kilometer. Pace is personal; consistent easy running improves it more reliably than any single hard effort.
How do I convert pace per km to pace per mile?
Multiply by 1.609. A 5:00 per km pace is about 8:03 per mile. This calculator shows both automatically.