Pace Calculator
Enter any two of distance, time, and pace to get the third.
Estimating other distances
Once you have a pace, you can estimate a finish time for a different distance by multiplying pace × new distance — useful for predicting a 10K time from a recent 5K, though pace typically slows slightly over longer distances.
About the Pace Calculator
The Pace Calculator works out your running pace per kilometre or mile, and your average speed, from a distance and a finish time. Runners use it to review training runs and to see what pace a race goal requires.
Pace is time divided by distance. Enter the distance, choose kilometres or miles, and enter your time in hours, minutes and seconds to see the pace per unit (minutes and seconds) and the average speed per hour. To plan a race, enter the distance and the finish time you are aiming for and read the pace you would need to hold. A negative split, running the second half faster, is a popular race strategy, and longer distances usually require a slower pace than shorter ones.
How to use it
- Enter the distance and choose kilometres or miles.
- Enter your time in hours, minutes and seconds.
- Read the pace per unit and the average speed.
- Use the result to plan your target.
Tips and good to know
- Add a few seconds per kilometre for hills and heat.
- Use a GPS watch to check pace.
- Do not increase training volume too quickly.
Frequently asked questions
How do I convert pace between km and miles?
One mile is about 1.609 km, so a pace per mile is about 1.609 times the pace per kilometre.
Can I work out the pace needed for a goal time?
Yes, enter the race distance and the finish time you want.
Does it handle hours?
Yes.