Running Pace Calculator
Convert distance and duration to pace per kilometre, per mile, speed and a same-pace marathon time.
Result
How to use
Enter distance in kilometres and duration as H:MM:SS or M:SS.
Run the tool to calculate or transform the input.
Copy the result or save it as a text file.
FAQ
What rules does this tool use?
Pace is elapsed seconds divided by distance. One mile is 1.609344 km.
What are the limits?
The marathon time assumes constant pace throughout; it is not a prediction of performance.
Are my inputs uploaded?
Tool inputs are processed in your browser. Advertising makes separate requests as described in the privacy policy.