What pace is a 4-hour marathon?

5:41 per kilometre, or 9:09 per mile: 4:00:00 is 14,400 seconds, divided by 42.195 km. The same division gives 4:59 per km (8:01 per mile) for 3:30:00, 4:16 per km (6:52 per mile) for 3:00:00 and 7:07 per km (11:27 per mile) for 5:00:00. All of these are rows in the chart under the tool.

Is a marathon 26.2 miles?

It is 42.195 km, which is 26.2188 miles. Typing 26.2 miles gives a course about 30 metres short, which at 4-hour pace is around ten seconds. The Race seg sets the exact distance in whichever unit is selected, and the splits and chart use that figure.

Can I get mile splits for a course marked in kilometres?

Yes. The splits follow the distance unit seg, not the pace unit, so switch the distance to mi and the 42.195 km becomes 26.2188 miles with a row per mile and a finish row for the last 0.22. Switch back to km for a row per kilometre. The pace seg is separate, so the headline can stay per mile while the splits read per kilometre, or the reverse.

Do the splits allow for slowing down late in the race?

No. The table assumes the same pace throughout and computes the remaining fraction at the finish. It does not model fatigue, course conditions or a variable pacing strategy.

Where does the marathon chart start and stop?

At 2:30:00 and 6:00:00, every five minutes, as a comparison window. Each row divides its finish time by 42.195 km for the pace and shows pace per mile and the equivalent speed in km/h and mph. The nearest listed time within half a chart step is highlighted; it may differ from your finish.

Marathon Pace Calculator

Turn a marathon goal time into the pace per kilometre and per mile it takes, or a constant pace into the finish at that constant pace, over the official 42.195 km. The splits table lists every kilometre or mile at an even pace, and the chart under the tool runs from 2:30:00 to 6:00:00 in five-minute steps so a goal can be read off without typing anything.

Marathon in 3:45:005:20/km8:35 /mi · 11.25 km/h · 6.99 mph · finish 3:45:00

Solve for

Distance

In

Time

Pace: 5:20

Per

Race

Time reads as h:mm:ss or mm:ss, pace as m:ss, and a bare number is minutes. Changing a unit converts the value with it, and Race sets the official distance: a half marathon is 21.0975 km, not 21.1.

Splits

Every km at an even 5:20 per km, then the finish.

Km	Split	Elapsed
1	5:20	0:05:20
2	5:20	0:10:40
3	5:20	0:16:00
4	5:20	0:21:20
5	5:20	0:26:40
6	5:20	0:32:00
7	5:20	0:37:20
8	5:20	0:42:40
9	5:20	0:47:59
10	5:20	0:53:19
11	5:20	0:58:39
12	5:20	1:03:59
13	5:20	1:09:19
14	5:20	1:14:39
15	5:20	1:19:59
16	5:20	1:25:19
17	5:20	1:30:39
18	5:20	1:35:59
19	5:20	1:41:19
20	5:20	1:46:39
21	5:20	1:51:59
22	5:20	1:57:19
23	5:20	2:02:39
24	5:20	2:07:59
25	5:20	2:13:19
26	5:20	2:18:39
27	5:20	2:23:58
28	5:20	2:29:18
29	5:20	2:34:38
30	5:20	2:39:58
31	5:20	2:45:18
32	5:20	2:50:38
33	5:20	2:55:58
34	5:20	3:01:18
35	5:20	3:06:38
36	5:20	3:11:58
37	5:20	3:17:18
38	5:20	3:22:38
39	5:20	3:27:58
40	5:20	3:33:18
41	5:20	3:38:38
42	5:20	3:43:58
42.195finish	1:02	3:45:00

Marathon pace chart

Finish times every 5:00 from 2:30:00 to 6:00:00, with the even pace and speed each one takes over 42.195 km. The highlighted row is the nearest listed finish time, which may differ from your result.

Finish	Per km	Per mile	km/h	mph
2:30:00	3:33	5:43	16.88	10.49
2:35:00	3:40	5:55	16.33	10.15
2:40:00	3:48	6:06	15.82	9.83
2:45:00	3:55	6:18	15.34	9.53
2:50:00	4:02	6:29	14.89	9.25
2:55:00	4:09	6:40	14.47	8.99
3:00:00	4:16	6:52	14.06	8.74
3:05:00	4:23	7:03	13.68	8.5
3:10:00	4:30	7:15	13.32	8.28
3:15:00	4:37	7:26	12.98	8.07
3:20:00	4:44	7:38	12.66	7.87
3:25:00	4:52	7:49	12.35	7.67
3:30:00	4:59	8:01	12.06	7.49
3:35:00	5:06	8:12	11.78	7.32
3:40:00	5:13	8:23	11.51	7.15
3:45:00	5:20	8:35	11.25	6.99
3:50:00	5:27	8:46	11.01	6.84
3:55:00	5:34	8:58	10.77	6.69
4:00:00	5:41	9:09	10.55	6.55
4:05:00	5:48	9:21	10.33	6.42
4:10:00	5:55	9:32	10.13	6.29
4:15:00	6:03	9:44	9.93	6.17
4:20:00	6:10	9:55	9.74	6.05
4:25:00	6:17	10:06	9.55	5.94
4:30:00	6:24	10:18	9.38	5.83
4:35:00	6:31	10:29	9.21	5.72
4:40:00	6:38	10:41	9.04	5.62
4:45:00	6:45	10:52	8.88	5.52
4:50:00	6:52	11:04	8.73	5.42
4:55:00	6:59	11:15	8.58	5.33
5:00:00	7:07	11:27	8.44	5.24
5:05:00	7:14	11:38	8.3	5.16
5:10:00	7:21	11:49	8.17	5.07
5:15:00	7:28	12:01	8.04	4.99
5:20:00	7:35	12:12	7.91	4.92
5:25:00	7:42	12:24	7.79	4.84
5:30:00	7:49	12:35	7.67	4.77
5:35:00	7:56	12:47	7.56	4.7
5:40:00	8:03	12:58	7.45	4.63
5:45:00	8:11	13:10	7.34	4.56
5:50:00	8:18	13:21	7.23	4.49
5:55:00	8:25	13:32	7.13	4.43
6:00:00	8:32	13:44	7.03	4.37

Race distances are the official ones. A marathon is 42.195 km and a half is 21.0975 km. Typing 26.2 miles shortens the marathon by about 30 metres; 13.1 shortens the half by about 15 metres, which changes the finish time, so Race sets the official figure and any other distance can be typed in either unit. The splits assume an even pace: they are the plan for the day, not a prediction of it, and speed conversion does not model treadmill incline or road effort. The chart is the same arithmetic run across a whole range of finish times.

Common questions

What pace is a 4-hour marathon?: 5:41 per kilometre, or 9:09 per mile: 4:00:00 is 14,400 seconds, divided by 42.195 km. The same division gives 4:59 per km (8:01 per mile) for 3:30:00, 4:16 per km (6:52 per mile) for 3:00:00 and 7:07 per km (11:27 per mile) for 5:00:00. All of these are rows in the chart under the tool.
Is a marathon 26.2 miles?: It is 42.195 km, which is 26.2188 miles. Typing 26.2 miles gives a course about 30 metres short, which at 4-hour pace is around ten seconds. The Race seg sets the exact distance in whichever unit is selected, and the splits and chart use that figure.
Can I get mile splits for a course marked in kilometres?: Yes. The splits follow the distance unit seg, not the pace unit, so switch the distance to mi and the 42.195 km becomes 26.2188 miles with a row per mile and a finish row for the last 0.22. Switch back to km for a row per kilometre. The pace seg is separate, so the headline can stay per mile while the splits read per kilometre, or the reverse.
Do the splits allow for slowing down late in the race?: No. The table assumes the same pace throughout and computes the remaining fraction at the finish. It does not model fatigue, course conditions or a variable pacing strategy.
Where does the marathon chart start and stop?: At 2:30:00 and 6:00:00, every five minutes, as a comparison window. Each row divides its finish time by 42.195 km for the pace and shows pace per mile and the equivalent speed in km/h and mph. The nearest listed time within half a chart step is highlighted; it may differ from your finish.

Constant-pace arithmetic from supplied numbers, using browser numeric precision. Clocks round to seconds, distances to four decimals and speeds to two; conversions retain unrounded values. A half marathon is 21.0975 km.