What pace is a 50-minute 10K?

5:00 per kilometre, or 8:03 per mile: 3,000 seconds over 10 km. A 45-minute 10K needs 4:30 per km (7:15 per mile) and a one-hour 10K needs 6:00 per km (9:39 per mile). Each of these is a row in the chart under the tool.

How many miles is a 10K?

6.2137 miles. Switch the distance unit seg to mi and the field converts to that figure, and the splits table changes to a row per mile with a finish row for the last 0.21 of a mile. Typing 6.2 instead gives a course about 22 metres short.

Can I work out my 10K time from a 5K time?

You can calculate the finish if the same pace were held for 10 km: solve pace over 5 km, then solve time over 10 km. That is constant-pace arithmetic. It is not a race prediction or training recommendation.

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.

What range does the 10K chart cover?

Finish times from 30:00 to 1:30:00, every two and a half minutes. Each row divides the finish time by 10 km for the pace per kilometre, converts it to a pace per mile, and gives the equivalent speed in km/h and mph. The row nearest the time in the calculator is highlighted.

10K Pace Calculator

Turn a 10K goal time into the pace per kilometre and per mile it takes, or a pace into the finish at that constant pace, over exactly 10 km. The splits table lists every kilometre or mile at an even pace, and the chart under the tool runs from 30:00 to 1:30:00 in steps of two and a half minutes so a target can be read straight off the page.

10K in 50:005:00/km8:03 /mi · 12 km/h · 7.46 mph · finish 50:00

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
5	5:00	25:00
6	5:00	30:00
7	5:00	35:00
8	5:00	40:00
9	5:00	45:00
10finish	5:00	50:00

10K pace chart

Finish times every 2:30 from 30:00 to 1:30:00, with the even pace and speed each one takes over 10 km. The highlighted row is the nearest listed finish time, which may differ from your result.

Finish	Per km	Per mile	km/h	mph
30:00	3:00	4:50	20	12.43
32:30	3:15	5:14	18.46	11.47
35:00	3:30	5:38	17.14	10.65
37:30	3:45	6:02	16	9.94
40:00	4:00	6:26	15	9.32
42:30	4:15	6:50	14.12	8.77
45:00	4:30	7:15	13.33	8.28
47:30	4:45	7:39	12.63	7.85
50:00	5:00	8:03	12	7.46
52:30	5:15	8:27	11.43	7.1
55:00	5:30	8:51	10.91	6.78
57:30	5:45	9:15	10.43	6.48
1:00:00	6:00	9:39	10	6.21
1:02:30	6:15	10:04	9.6	5.97
1:05:00	6:30	10:28	9.23	5.74
1:07:30	6:45	10:52	8.89	5.52
1:10:00	7:00	11:16	8.57	5.33
1:12:30	7:15	11:40	8.28	5.14
1:15:00	7:30	12:04	8	4.97
1:17:30	7:45	12:28	7.74	4.81
1:20:00	8:00	12:52	7.5	4.66
1:22:30	8:15	13:17	7.27	4.52
1:25:00	8:30	13:41	7.06	4.39
1:27:30	8:45	14:05	6.86	4.26
1:30:00	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 50-minute 10K?: 5:00 per kilometre, or 8:03 per mile: 3,000 seconds over 10 km. A 45-minute 10K needs 4:30 per km (7:15 per mile) and a one-hour 10K needs 6:00 per km (9:39 per mile). Each of these is a row in the chart under the tool.
How many miles is a 10K?: 6.2137 miles. Switch the distance unit seg to mi and the field converts to that figure, and the splits table changes to a row per mile with a finish row for the last 0.21 of a mile. Typing 6.2 instead gives a course about 22 metres short.
Can I work out my 10K time from a 5K time?: You can calculate the finish if the same pace were held for 10 km: solve pace over 5 km, then solve time over 10 km. That is constant-pace arithmetic. It is not a race prediction or training recommendation.
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.
What range does the 10K chart cover?: Finish times from 30:00 to 1:30:00, every two and a half minutes. Each row divides the finish time by 10 km for the pace per kilometre, converts it to a pace per mile, and gives the equivalent speed in km/h and mph. The row nearest the time in the calculator is highlighted.

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.