Running Calculator for Custom Distances

Select either miles or kilometers, then enter numbers into any field, and the script will calculate pace, speed, or time into other fields as appropriate. This can be used for running, walking, cycling, or any other activity.

Calculate pace, speed, or time

Average pace per


Speed (chosen units per hour):

This section will calculate time based upon the speed above if it’s 6 or higher, or the pace above if it’s 10:01 or more. This gives the best precision.

Time to run