Pace calculator

Enter any two of distance, time and pace, and the calculator works out the third. It handles race distances, track reps and anything in between.

Calculator

Time
h
min
s

Pace

5:00/km

Pace per mile

8:03 /mi

Speed

12.0 km/h

Finish time

50:00

10K pace chart

Splits

KmSplitPaceElapsed
15:005:00 /km5:00
25:005:00 /km10:00
35:005:00 /km15:00
45:005:00 /km20:00
55:005:00 /km25:00
65:005:00 /km30:00
75:005:00 /km35:00
85:005:00 /km40:00
95:005:00 /km45:00
105:005:00 /km50:00

How pace, time and distance fit together

Pace is time divided by distance, so any two give you the third: a 10K in 50 minutes is 5:00 per kilometre, or 8:03 per mile. Speed is the same thing turned around, in kilometres or miles per hour.

The splits assume you hold the pace from start to finish, or, with a negative split, that you speed up steadily so the second half is quicker than the first by the percentage you choose.