7:03 per km — marathon in 4:57:28, 8.51 km/h

Running 7:03 per kilometre is 8.51 km/h. Hold it and the half comes in at 2:28:44, the marathon at 4:57:28.

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: 35:15
10K: 1:10:30
Half: 2:28:44
Marathon: 4:57:28

Speed: 8.51 km/h
Metres per second: 2.364 m/s
Pace per mile: 11:21
One lap (400 m): 2:49

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

Nearby paces

Pace per km	Half	Marathon
6:58	2:26:59	4:53:58
6:59	2:27:20	4:54:40
7:00	2:27:41	4:55:22
7:01	2:28:02	4:56:04
7:02	2:28:23	4:56:46
7:03	2:28:44	4:57:28
7:04	2:29:05	4:58:11
7:05	2:29:26	4:58:53
7:06	2:29:48	4:59:35
7:07	2:30:09	5:00:17
7:08	2:30:30	5:00:59

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 7:03 per km give?

4:57:28. The half comes in at 2:28:44, the 10K at 1:10:30 and the 5K at 35:15.

Q. How fast is 7:03 per km in km/h?

8.51 km/h, or 2.364 metres per second.

Q. What is that per mile?

11:21, because a mile is 1.609344 km.

Q. And one lap of the track?

2:49 for 400 m.