Running pace·6:03 /km
6:03
/km · 9.92 km/h

6:03 per km — marathon in 4:15:17, 9.92 km/h

Running 6:03 per kilometre is 9.92 km/h. Hold it and the half comes in at 2:07:38, the marathon at 4:15:17.

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
30:15
10K
1:00:30
Half
2:07:38
Marathon
4:15:17
Speed
9.92 km/h
Metres per second
2.755 m/s
Pace per mile
9:44
One lap (400 m)
2:25

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 kmHalfMarathon
5:582:05:534:11:46
5:592:06:144:12:28
6:002:06:354:13:10
6:012:06:564:13:52
6:022:07:174:14:35
6:032:07:384:15:17
6:042:07:594:15:59
6:052:08:214:16:41
6:062:08:424:17:23
6:072:09:034:18:06
6:082:09:244:18:48

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 6:03 per km give?

4:15:17. The half comes in at 2:07:38, the 10K at 1:00:30 and the 5K at 30:15.

Q. How fast is 6:03 per km in km/h?

9.92 km/h, or 2.755 metres per second.

Q. What is that per mile?

9:44, because a mile is 1.609344 km.

Q. And one lap of the track?

2:25 for 400 m.