Running pace·2:50 /km
2:50
/km · 21.18 km/h

2:50 per km — marathon in 1:59:33, 21.18 km/h

Running 2:50 per kilometre is 21.18 km/h. Hold it and the half comes in at 59:47, the marathon at 1:59:33.

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
14:10
10K
28:20
Half
59:47
Marathon
1:59:33
Speed
21.18 km/h
Metres per second
5.882 m/s
Pace per mile
4:34
One lap (400 m)
1:08

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
2:4558:011:56:02
2:4658:221:56:44
2:4758:431:57:27
2:4859:041:58:09
2:4959:251:58:51
2:5059:471:59:33
2:511:00:082:00:15
2:521:00:292:00:58
2:531:00:502:01:40
2:541:01:112:02:22
2:551:01:322:03:04

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 2:50 per km give?

1:59:33. The half comes in at 59:47, the 10K at 28:20 and the 5K at 14:10.

Q. How fast is 2:50 per km in km/h?

21.18 km/h, or 5.882 metres per second.

Q. What is that per mile?

4:34, because a mile is 1.609344 km.

Q. And one lap of the track?

1:08 for 400 m.