Pace Calculator

Calculate your running pace, finish time, or distance for any race. Supports min/km and min/mi formats.

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Example

Input: 5 km run finished in 25:00

Result: Pace 5:00 min/km (8:03 min/mi), Speed 12.00 km/h, Marathon at this pace 3:30:59

25 minutes / 5 km = 5:00 per km; 5:00 x 1.609 = 8:03 per mile; 60 / 5 = 12 km/h.

Race Finish Times at Common Paces

Pace (min/km)	Pace (min/mi)	5K	10K	Half Marathon	Marathon
4:00	6:26	20:00	40:00	1:24:23	2:48:47
4:30	7:15	22:30	45:00	1:34:56	3:09:53
5:00	8:03	25:00	50:00	1:45:29	3:30:59
5:30	8:51	27:30	55:00	1:56:02	3:52:04
6:00	9:39	30:00	1:00:00	2:06:35	4:13:10
6:30	10:28	32:30	1:05:00	2:17:08	4:34:16
7:00	11:16	35:00	1:10:00	2:27:41	4:55:22

Even pace for the whole race. Times are in hours:minutes:seconds or minutes:seconds.

Choose which variable to solve for - pace, time, or distance.
Enter the two known values (for example, distance and finish time).
View your calculated pace in both min/km and min/mi formats.
Check estimated finish times for standard race distances (5K, 10K, half marathon, marathon).
Use the speed equivalents in km/h and mph for cross-training reference.

Running Pace, Time and Distance Made Simple

Running pace is the time it takes to cover one kilometer or one mile. Run 5 km in 25 minutes and your pace is 5:00 per km, or 8:03 per mile. This calculator solves for pace, finish time or distance when you know the other two.

Choose what to solve for and whether you work in kilometers or miles. Enter the two values you know: time in hours, minutes and seconds, and pace in minutes and seconds per unit. You get pace in both min/km and min/mi and speed in km/h and mph. It also shows the distance in both units and the total time.

The tool also predicts finish times at your current pace for a 5K, a 10K, a half marathon (21.0975 km) and a marathon (42.195 km). At 5:00 per km, a marathon takes 3:30:59. The table below covers a range of common paces.

These predictions assume you hold the same pace for the whole distance. For longer races, most people slow down, so a 5K pace is rarely a realistic marathon pace. Use the prediction as the fastest case, and plan training paces that feel easier than race pace. Pace and speed are two views of the same thing. Pace is time per distance, which runners prefer. Speed is distance per time, which cyclists and treadmills often show. A pace of 6:00 per km equals 10 km/h. To set effort by heart rate instead, try the Heart Rate Zone Calculator.

Formula / How It Works

Pace = Time / Distance. Time = Pace x Distance. Distance = Time / Pace. Speed (km/h) = 60 / pace (min/km).

Frequently Asked Questions

Divide your total time by the distance. If you ran 10 km in 55 minutes, your pace is 55 / 10 = 5.5 minutes per km, which is 5:30 per km. The decimal part times 60 gives the seconds. This tool also converts it to minutes per mile.

You need to average about 5:41 per km, or 9:09 per mile, over the full 42.195 km. Many runners aim a few seconds per km faster to allow for water stops and the late-race slowdown. Enter your goal time and distance here to test other targets.

Pace is time per unit of distance, such as 5:30 per km. Speed is distance per unit of time, such as 10.9 km/h. They are inverses: a faster pace is a smaller number, while a faster speed is a bigger number. To convert, divide 60 by your pace in minutes.

Multiply the pace per km by 1.609. A 5:00 per km pace is 5 x 1.609 = 8.05 minutes, or about 8:03 per mile. To go the other way, divide the pace per mile by 1.609. This tool shows both automatically.

They are simple estimates: your current pace times the race distance. They do not allow for fatigue, hills, heat or pacing strategy. Most runners slow down over longer distances, so treat the marathon figure as a best case unless you have trained for it.

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