What pace is a 25-minute 5K?

5:00 per kilometre, or 8:03 per mile: 1,500 seconds over 5 km. A 20-minute 5K needs 4:00 per km (6:26 per mile) and a 30-minute 5K needs 6:00 per km (9:39 per mile). All three are rows in the chart under the tool, which runs a minute at a time from 15:00 to 45:00.

How many miles is a 5K?

3.1069 miles. Switch the distance unit seg to mi and the field converts to that figure, and the splits table changes to one row per mile with a finish row for the last 0.11 of a mile. Typing 3.1 instead gives a course about 11 metres short.

Why does the calculator show km/h and mph?

Pace and speed describe the same distance/time ratio: 5:00 per km is 12 km/h or 7.46 mph. Speed to pace provides the reverse conversion. Treadmill incline, calibration and road-equivalent effort are not calculated.

Yes. Each whole kilometre or mile takes the same time; the final row covers the remaining fraction. These are constant-pace calculations. Negative splits, changing pace and run/walk intervals are not modeled.

5K Pace Calculator

Turn a 5K goal time into the pace per kilometre and per mile it takes, or a pace into the finish at that constant pace, over exactly 5 km. The splits table lists each kilometre or mile at an even pace, and the chart under the tool runs from 15:00 to 45:00 a minute at a time so a target can be read off without typing anything.

5K in 25:005:00/km8:03 /mi · 12 km/h · 7.46 mph · finish 25:00

Solve for

Distance

In

Time

Pace: 5:00

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 5:00 per km, then the finish.

Km	Split	Elapsed
1	5:00	5:00
2	5:00	10:00
3	5:00	15:00
4	5:00	20:00
5finish	5:00	25:00

5K pace chart

Finish times every 1:00 from 15:00 to 45:00, with the even pace and speed each one takes over 5 km. The highlighted row is the nearest listed finish time, which may differ from your result.

Finish	Per km	Per mile	km/h	mph
15:00	3:00	4:50	20	12.43
16:00	3:12	5:09	18.75	11.65
17:00	3:24	5:28	17.65	10.97
18:00	3:36	5:48	16.67	10.36
19:00	3:48	6:07	15.79	9.81
20:00	4:00	6:26	15	9.32
21:00	4:12	6:46	14.29	8.88
22:00	4:24	7:05	13.64	8.47
23:00	4:36	7:24	13.04	8.1
24:00	4:48	7:43	12.5	7.77
25:00	5:00	8:03	12	7.46
26:00	5:12	8:22	11.54	7.17
27:00	5:24	8:41	11.11	6.9
28:00	5:36	9:01	10.71	6.66
29:00	5:48	9:20	10.34	6.43
30:00	6:00	9:39	10	6.21
31:00	6:12	9:59	9.68	6.01
32:00	6:24	10:18	9.38	5.83
33:00	6:36	10:37	9.09	5.65
34:00	6:48	10:57	8.82	5.48
35:00	7:00	11:16	8.57	5.33
36:00	7:12	11:35	8.33	5.18
37:00	7:24	11:55	8.11	5.04
38:00	7:36	12:14	7.89	4.91
39:00	7:48	12:33	7.69	4.78
40:00	8:00	12:52	7.5	4.66
41:00	8:12	13:12	7.32	4.55
42:00	8:24	13:31	7.14	4.44
43:00	8:36	13:50	6.98	4.34
44:00	8:48	14:10	6.82	4.24
45:00	9:00	14:29	6.67	4.14

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 25-minute 5K?: 5:00 per kilometre, or 8:03 per mile: 1,500 seconds over 5 km. A 20-minute 5K needs 4:00 per km (6:26 per mile) and a 30-minute 5K needs 6:00 per km (9:39 per mile). All three are rows in the chart under the tool, which runs a minute at a time from 15:00 to 45:00.
How many miles is a 5K?: 3.1069 miles. Switch the distance unit seg to mi and the field converts to that figure, and the splits table changes to one row per mile with a finish row for the last 0.11 of a mile. Typing 3.1 instead gives a course about 11 metres short.
Why does the calculator show km/h and mph?: Pace and speed describe the same distance/time ratio: 5:00 per km is 12 km/h or 7.46 mph. Speed to pace provides the reverse conversion. Treadmill incline, calibration and road-equivalent effort are not calculated.
Are the splits even?: Yes. Each whole kilometre or mile takes the same time; the final row covers the remaining fraction. These are constant-pace calculations. Negative splits, changing pace and run/walk intervals are not modeled.

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.