Running pace·3:37 /km
3:37
/km · 16.59 km/h

3:37 per km — marathon in 2:32:36, 16.59 km/h

Running 3:37 per kilometre is 16.59 km/h. Hold it and the half comes in at 1:16:18, the marathon at 2:32:36.

Finish times

These assume you hold the pace from gun to tape. Most runners drift slower in the second half, so leave a margin when setting a target.

5K
18:05
10K
36:10
Half
1:16:18
Marathon
2:32:36
Speed
16.59 km/h
Metres per second
4.608 m/s
Pace per mile
5:49
One lap (400 m)
1:27

What this pace breaks

The cut-offs are tighter than they look: a sub-4 marathon needs 5:41 per kilometre, and one second slower puts you over four hours.

sub-20 min 5K · yessub-25 min 5K · yessub-30 min 5K · yessub-50 min 10K · yessub-60 min 10K · yessub-100 min Half · yessub-2h Half · yessub-3h Marathon · yessub-3:30h Marathon · yessub-4h Marathon · yessub-5h Marathon · yes

Nearby paces

Pace per kmHalfMarathon
3:321:14:332:29:05
3:331:14:542:29:48
3:341:15:152:30:30
3:351:15:362:31:12
3:361:15:572:31:54
3:371:16:182:32:36
3:381:16:392:33:19
3:391:17:002:34:01
3:401:17:212:34:43
3:411:17:432:35:25
3:421:18:042:36:07

The half and the full are not round numbers

A marathon is 42.195 km and a half is 21.0975 km. Rounding to 42 km costs you about a minute at a 5:00 pace — small, but enough to miss a target.

How to read this

  • Pace is the time for one kilometre, so a smaller number means faster.
  • To get speed, divide 3600 by the pace in seconds: 300 s gives 12 km/h.
  • A finish time is simply the pace multiplied by the distance.
  • Mile pace is kilometre pace times 1.609344.

Frequently asked questions

Q. What marathon time does 3:37 per km give?

2:32:36. The half comes in at 1:16:18, the 10K at 36:10 and the 5K at 18:05.

Q. How fast is 3:37 per km in km/h?

16.59 km/h, or 4.608 metres per second.

Q. What is that per mile?

5:49, because a mile is 1.609344 km.

Q. And one lap of the track?

1:27 for 400 m.