Runner tool
Pace calculator
Convert a distance and finish time into pace per kilometer, pace per mile, and average speed.
Your pace
Enter your run to see the result.
How it works
The calculator divides your finish time by your distance to get seconds per kilometre, multiplies that figure by 1.609344 (the number of kilometres in a mile) to get pace per mile, and divides distance by elapsed time to give average speed in kilometres per hour.
Frequently asked questions
How do I work out my race pace per km?
Enter your distance and finish time, and the calculator divides total time by distance. A 5 km run finished in 25:00 works out to a race pace of 5:00 per km.
What is the difference between pace per km and pace per mile?
Pace per mile is your per-kilometre pace multiplied by 1.609344, because one mile equals 1.609344 kilometres. A 5:00/km pace is about 8:03 per mile.
Can I use this pace calculator for any distance?
Yes. Enter any distance in kilometres, from a single kilometre up to a marathon or longer, and the pace per km, pace per mile, and average speed update accordingly.