Pace Calculator

Find your running pace from a distance and a time, the finish time for a pace, or how far you ran, with splits and pace charts.

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Last updated: 2 November 2026

Find Your Pace

Your pace is

5:00 per km

That is 8:03 per mile. You ran 10 km (6.21 miles) in 50:00.

Pace per km5:00
Pace per mile8:03
Speed (km/h)12
Speed (mph)7.46
Distance10 km
Time50:00

At this pace you would run

5K25:00
10K50:00
Half marathon1:45:29
Marathon3:30:59

Pace is time ÷ distance. The race times assume you hold the same pace for the whole race, which gets harder over longer distances. Splits for every kilometer or mile are in the table below.

About Pace Calculator

A pace calculator turns a distance and a time into your pace, the time a pace will take over a distance, or the distance you cover in a time. Pace is how long each kilometer or mile takes you.

Pace = Time ÷ Distance

Race Distances

Race	Kilometers	Miles
5K	5	3.11
10K	10	6.21
Half marathon	21.0975	13.11
Marathon	42.195	26.22

1 mile is 1.609344 km, and 1 km is 0.621371 miles.

Quick Formulas

Pace = time ÷ distance
Time = pace × distance
Distance = time ÷ pace
Speed = distance ÷ time
Pace per mile = pace per km × 1.609344

Your Splits

The time at each km for 10 km at an even 5:00 per km. Switch the unit with the buttons.

Km	Split	Total time
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
10	5:00	50:00

Every split is the same because the pace is even. Splits go up to the distance you ran, and the last one can be part of a kilometer or mile.

Faster or Slower?

How much does a few seconds per mile change your race? Your 10K and half marathon time at nearby paces.

Pace change	Per mile	Per km	10K	Half
−15 sec per mile	7:48	4:51	48:27	1:42:13
−10 sec per mile	7:53	4:54	48:58	1:43:18
−5 sec per mile	7:58	4:57	49:29	1:44:24
Your pace	8:03	5:00	50:00	1:45:29
+5 sec per mile	8:08	5:03	50:31	1:46:35
+10 sec per mile	8:13	5:06	51:02	1:47:40
+15 sec per mile	8:18	5:09	51:33	1:48:46

Five seconds faster per mile saves about 31 seconds over a 10K and about 1:06 over a half marathon.

Marathon Pace Chart

What pace do you need for a 3:30 marathon? Find your finish time.

Pace per mile	Pace per km	Speed (mph)
5:43	3:33	10.49
6:18	3:55	9.53
6:52	4:16	8.74
7:26	4:37	8.07
8:01	4:59	7.49
8:35	5:20	6.99
9:09	5:41	6.55
9:44	6:03	6.17
10:18	6:24	5.83
10:52	6:45	5.52
11:27	7:07	5.24
12:35	7:49	4.77
13:44	8:32	4.37

A marathon is 26.22 miles (42.195 km). Click a time to see it in the calculator. The table assumes an even pace.

Half Marathon Pace Chart

What pace for a 1:45 half marathon? Find your finish time.

Pace per mile	Pace per km	Speed (mph)
5:43	3:33	10.49
6:52	4:16	8.74
8:01	4:59	7.49
9:09	5:41	6.55
10:18	6:24	5.83
11:27	7:07	5.24
12:35	7:49	4.77
13:44	8:32	4.37

A half marathon is 13.11 miles (21.0975 km). Click a time to see it in the calculator.

5K Pace Chart

What pace for a 25:00 5K? Find your finish time.

Pace per mile	Pace per km	Speed (mph)
5:48	3:36	10.36
6:26	4:00	9.32
7:05	4:24	8.47
7:43	4:48	7.77
8:03	5:00	7.46
8:22	5:12	7.17
9:01	5:36	6.66
9:39	6:00	6.21
10:18	6:24	5.83
11:16	7:00	5.33
12:52	8:00	4.66

A 5K is 3.11 miles. Click a time to see it in the calculator.

10K Pace Chart

What pace for a 50:00 10K? Find your finish time.

Pace per mile	Pace per km	Speed (mph)
6:26	4:00	9.32
7:15	4:30	8.28
8:03	5:00	7.46
8:51	5:30	6.78
9:39	6:00	6.21
10:28	6:30	5.74
11:16	7:00	5.33
12:04	7:30	4.97
12:52	8:00	4.66

A 10K is 6.21 miles. Click a time to see it in the calculator.

Running Pace Chart

Race times for each pace per mile, from a brisk pace to an easy jog.

Per km	5K	10K	Half	Marathon
3:44	18:38	37:17	1:18:39	2:37:19
4:02	20:12	40:23	1:25:13	2:50:25
4:21	21:45	43:30	1:31:46	3:03:32
4:40	23:18	46:36	1:38:19	3:16:38
4:58	24:51	49:43	1:44:53	3:29:45
5:17	26:24	52:49	1:51:26	3:42:52
5:36	27:58	55:55	1:57:59	3:55:58
5:54	29:31	59:02	2:04:32	4:09:05
6:13	31:04	1:02:08	2:11:06	4:22:11
6:50	34:11	1:08:21	2:24:12	4:48:24
7:27	37:17	1:14:34	2:37:19	5:14:38

Times are for an even pace all the way. Click a pace to use it in the Finish Time tab.

Pace Converter Table

Min per km to min per mile, mph and km/h.

Min per mile	Mph	Km/h
5:38	10.65	17.14
6:26	9.32	15
7:15	8.28	13.33
8:03	7.46	12
8:51	6.78	10.91
9:39	6.21	10
10:28	5.74	9.23
11:16	5.33	8.57
12:04	4.97	8
12:52	4.66	7.5

To change a pace per km into a pace per mile, multiply it by 1.609344. For example 5:00 per km is 8:03 per mile.

Kilometers to Miles

How many miles is 8K? Common race distances.

Distance	Kilometers	Miles
1 km	1	0.62
1 mile	1.609	1
2.5 km	2.5	1.55
3 km	3	1.86
5 km	5	3.11
8 km	8	4.97
10 km	10	6.21
15 km	15	9.32
Half marathon	21.098	13.11
Marathon	42.195	26.22

Miles = kilometers × 0.621371. Kilometers = miles × 1.609344.

Try an Example

Pick one to fill in the calculator and see its answer.

Example	Result
	5:00 per km, 8:03 per mile
	1:45:29
	4:59 per km, 8:01 per mile
	7:07 per km, 11:27 per mile
	5:00 per km, 8:03 per mile
	10.91 km

Click an example to put it into the calculator.

Good to know

Enter any two of distance, time and pace, and the calculator finds the third. Use the tabs to choose which one you want.
Times and splits assume an even pace. Hills, heat, wind and tiredness change real races, and the longer the race the more they matter.
Everything is worked out in meters and seconds, so kilometers and miles always agree. A mile is 1.609344 km.
For a route you have already run, measure the distance with a map or a GPS watch first, then enter it with your time.

What is included

Pace, finish time or distance from any two
Pace per km and per mile, speed in km/h and mph
Splits for every kilometer or mile
Marathon, half marathon, 10K and 5K pace charts
Pace and distance converters
Copy link and Print

Important to know

Your numbers stay in your own browser and are never sent anywhere. Paces and race times are estimates for planning. Build up your training gradually, and ask a doctor first if you have any health concerns.

Use this free pace calculator to find your running pace from a distance and a time, the finish time for a pace, or the distance you cover in a time. The answer shows your pace per kilometer and per mile, your speed in km/h and mph, and the time you would run for a 5K, 10K, half marathon and marathon at that pace. Tables show your splits, how a few seconds faster or slower changes a race, marathon, half marathon, 10K and 5K pace charts, a running pace chart, and a pace converter from minutes per km to minutes per mile, mph and km/h. It is free and instant, and your numbers stay in your browser.

How to calculate running pace

Pace is how long each kilometer or mile takes you. Divide your time by your distance. Enter the distance and the time in the Pace tab and the calculator gives your pace per kilometer and per mile, your speed in km/h and mph, and the time you would run for a 5K, 10K, half marathon and marathon at that pace.

Example: you run 10 km in 50:00
pace = 50:00 ÷ 10 km = 5:00 per km
pace per mile = 5:00 × 1.609344 = 8:03 per mile
speed = 10 km ÷ 50 minutes = 12 km/h, or 7.46 mph

The pace, time and distance formulas

The three are linked, so if you know two you can find the third.

Pace = time ÷ distance
Time = pace × distance
Distance = time ÷ pace
Speed = distance ÷ time

The Finish Time tab does the second one: a half marathon (21.0975 km) at 5:00 per km takes 21.0975 × 5:00 = 1:45:29. The Distance tab does the third: in 1 hour at 5:30 per km you cover 10.91 km, which is 6.78 miles. Pace and speed describe the same thing in different ways. Pace is time per distance, so a lower number is faster. Speed is distance per time, so a higher number is faster.

Pace per mile and pace per kilometer

A mile is 1.609344 kilometers, so to change a pace per kilometer into a pace per mile you multiply by 1.609344, and to go the other way you divide. 5:00 per km is 8:03 per mile, and 8:00 per mile is 4:58 per km. To change a speed into a pace, divide 60 by the speed: 7.5 mph is 60 ÷ 7.5 = 8 minutes per mile. The Convert tab and the Pace Converter table do all of these for you.

Marathon, half marathon, 10K and 5K pace charts

The pace charts show the pace you need for a finish time, the other way round from the calculator. For a marathon (26.22 miles, 42.195 km), a 3:30:00 finish needs 8:01 per mile or 4:59 per km. A 4:00:00 finish needs 9:09 per mile (5:41 per km), and a 5:00:00 finish needs 11:27 per mile (7:07 per km). For a half marathon (13.11 miles), 1:45:00 is also 8:01 per mile. A 25:00 5K is 5:00 per km and a 50:00 10K is the same. Click any time in a chart to see it in the calculator.

Splits and even pacing

Splits are your time for each kilometer or mile. At an even pace every split is the same, and the total time grows by one split each time. A negative split means running the second half of a race faster than the first half. The Your Splits table lists the time at each kilometer or mile for the run you entered, and the Faster or Slower table shows what a few seconds per mile does to your 10K and half marathon time: five seconds faster per mile saves about 31 seconds over a 10K and about 1 minute 5 seconds over a half marathon.

How long does it take to run a mile?

It is your pace per mile. At 8:00 per mile a mile takes 8 minutes, and at 10:00 per mile it takes 10 minutes. There is no single average, because it depends on age, fitness, how long the run is and whether it is a race. The best number to compare with is your own, so use the calculator to track how your pace changes as you train.

Race times for other distances

The race times in the calculator assume you hold the same pace for the whole distance. Most runners slow down over longer races, so a 10K pace is usually too fast for a marathon. Treat the times as a plan or a target, not a prediction. The Running Pace Chart shows the 5K, 10K, half marathon and marathon time for each pace per mile.

Pace on a treadmill

A treadmill shows speed in mph or km/h. Use the Convert tab to turn that speed into a pace per mile or per kilometer, or the other way round. For example 12 km/h is 5:00 per km.

Pace in Excel and Google Sheets

If your time is in A2 as a time such as 0:50:00 and the distance in kilometers is in B2, the pace per kilometer is =A2/B2. Format the cell as [m]:ss to read it as minutes and seconds. To get the pace per mile, divide by the distance in miles, which is B2 ÷ 1.609344.

Calculators that go with this one

To add up times, use the Time Calculator, and for work hours use the Hours Calculator. To plan your training, see the Calorie Calculator and the BMI Calculator, and for strength training the One Rep Max Calculator.

View All Calculators

Frequently Asked Questions

How do I calculate running pace?

Divide your time by your distance. If you run 10 km in 50:00, your pace is 50:00 ÷ 10 = 5:00 per km, which is 8:03 per mile. Enter the distance and the time in the Pace tab and the calculator does it for you, in km and in miles.

How do I calculate my finish time from a pace?

Multiply the pace by the distance. A half marathon is 21.0975 km, so at 5:00 per km it takes 21.0975 × 5:00 = 1:45:29. Use the Finish Time tab and choose the race or type a distance.

How do I calculate how far I ran?

Divide your time by your pace. In 1 hour at 5:30 per km you cover 10.91 km, which is 6.78 miles. Use the Distance tab. To find the length of a route you have already run, measure it with a map or a GPS watch, then enter that distance and your time in the Pace tab.

What pace do I need for a 3:30 marathon?

A marathon is 42.195 km (26.22 miles), so a 3:30:00 finish needs 8:01 per mile, or 4:59 per km. The Marathon Pace Chart lists finish times from 2:30 to 6:00.

What pace do I need for a 5 hour marathon?

A 5:00:00 marathon needs 11:27 per mile, or 7:07 per km. Enter 42.195 km and 5 hours in the Pace tab to check it and to see your splits.

What is a good running pace?

It depends on your age, fitness, the distance and your goals, so there is no single answer. A good pace is one you can hold for the whole run and that gets a little faster as you train. Compare it with your own past runs rather than with other people.

How many km are in a mile?

One mile is 1.609344 kilometers, and one kilometer is 0.621371 miles. So 5 km is 3.11 miles and 10 km is 6.21 miles. The Kilometers to Miles table lists common race distances.

How do I convert min per km to min per mile?

Multiply the pace per km by 1.609344. 5:00 per km is 5:00 × 1.609344 = 8:03 per mile. To go from min per mile to min per km, divide by 1.609344: 8:00 per mile is 4:58 per km. The Convert tab does both.

How do I convert mph to minutes per mile?

Divide 60 by the speed. 7.5 mph is 60 ÷ 7.5 = 8 minutes per mile, and 10 mph is 6 minutes per mile. For km/h, divide 60 by the speed to get minutes per km. The Convert tab shows pace and speed together.

How long does it take to run a mile?

It takes as long as your pace per mile: 8 minutes at 8:00 per mile, or 10 minutes at 10:00 per mile. Enter 1 mile and your time in the Pace tab to see your pace.

What is the average mile time?

There is no single average, because it depends on age, fitness and whether you are racing or jogging. Use this calculator to find your own mile pace and watch how it improves as you train.

What are splits, and what is a negative split?

Splits are your times for each kilometer or mile of a run. A negative split means running the second half of a race faster than the first half. The Your Splits table shows the time at each kilometer or mile for an even pace.

Can I predict my race times for other distances?

The calculator shows the 5K, 10K, half marathon and marathon time if you could hold the same pace for the whole distance. Most runners slow down over longer races, so treat those times as a target, not a prediction.

How accurate is a pace calculator?

The maths is exact: it divides time by distance. What changes in a real run is your pace itself, because of hills, heat, wind and tiredness. Splits and race times assume an even pace.

Can I use it for a treadmill?

Yes. A treadmill shows speed in mph or km/h. Use the Convert tab to change that speed into a pace per mile or per kilometer, for example 12 km/h is 5:00 per km. It also works for walking and cycling.

Are my numbers saved or shared?

No. The calculation happens in your browser, and the numbers you enter are not stored or sent to any server. A link you copy keeps the numbers after the # sign, which browsers never send to a server.

Pace Calculator

Find Your Pace

About Pace Calculator

Race Distances

Quick Formulas

Your Splits

Faster or Slower?

Marathon Pace Chart

Half Marathon Pace Chart

5K Pace Chart

10K Pace Chart

Running Pace Chart

Pace Converter Table

Kilometers to Miles

Try an Example

Good to know

What is included

Important to know

How to calculate running pace

The pace, time and distance formulas

Pace per mile and pace per kilometer

Marathon, half marathon, 10K and 5K pace charts

Splits and even pacing

How long does it take to run a mile?

Race times for other distances

Pace on a treadmill

Pace in Excel and Google Sheets

Calculators that go with this one

Related calculators

Frequently Asked Questions