Speed to pace converter
Type the speed your treadmill or sports watch shows to see the pace and the common race times at that speed.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter speed and speed unit.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Pace (min/km) = 60 ÷ speed in km/h. Pace per mile = pace per km × 1.609344. Race time = distance ÷ speed.
Example
Inputs: Speed = 10, Speed unit = km/h. Result: Pace per kilometer: 6:00 min/km; Pace per mile: 9:39 min/mile; 5K time: 30:00.
Limits and caveats
- Race times assume a constant speed for the whole distance.
- Times are rounded to the nearest second.
Questions about this tool
What pace is 10 km/h?
It is 6:00 per kilometer, so a 10K takes exactly one hour.
Are the marathon times a real prediction?
They are the time for that distance at the same speed without stopping. To predict from a past race, use the race time predictor.
Which speed unit do treadmills use?
Most show km/h and some show mph. You can pick either here.