Pace calculator
One pace, four finish times: what the same steady pace delivers across every race distance on this site. Find your pace per kilometre, then read across.
Same pace, four races
Each finish time = pace per km × race distance (5k = 5.000 km, 10k = 10.000 km, half marathon = 21.0975 km, marathon = 42.195 km), rounded to the nearest second.
Pace per km 5k 10k Half marathon Marathon
3:30 /km 17:30 35:00 1:13:50 2:27:41 4:00 /km 20:00 40:00 1:24:23 2:48:47 4:30 /km 22:30 45:00 1:34:56 3:09:53 5:00 /km 25:00 50:00 1:45:29 3:30:59 5:30 /km 27:30 55:00 1:56:02 3:52:04 6:00 /km 30:00 1:00:00 2:06:35 4:13:10 6:30 /km 32:30 1:05:00 2:17:08 4:34:16 7:00 /km 35:00 1:10:00 2:27:41 4:55:22 7:30 /km 37:30 1:15:00 2:38:14 5:16:28
Calculate your own time, pace or distance
Pace calculator: choose what to find, then enter the other two values.
Your result will appear here.
Enable JavaScript to calculate on this page.
Time, on your terms Use total elapsed time to include stops, or moving time to exclude them. The calculation uses the time you enter. Assumes the same average pace throughout.
Units & limits All values must be greater than zero; zero time is rejected. Distance ≤ 1,000 km, time ≤ 99:59:59, pace ≤ 9:59:59 per km. One mile = 1.609344 km. Seconds and minutes in hh:mm:ss must be below 60. Display: time to 0.01 s; distance to 6 decimals; results below 0.005 s, 0.005 s/km or 0.000001 km are rejected.
All distances splits Split everyKilometre Mile
Split time is the time for that segment; elapsed time is cumulative. Times are rounded separately. Distance Split time Elapsed time
Pace = time ÷ distance · Time = pace × distance
Values stay in this page. Nothing is saved or sent.
About · Privacy · Contact