Free running tool

Running pace calculator

Work out your pace from a finish time, or the finish time a pace will give you. Works in kilometres and miles.

Calculate your pace

Distance
Finish time
Or pace

Fill in two of distance, time and pace. Leave the one you want blank.

Race finish times by pace

Finish times at an even pace
Pace5K10KHalfMarathon
4:00 /km (6:26 /mi)20:0040:001:24:232:48:47
4:30 /km (7:15 /mi)22:3045:001:34:563:09:53
5:00 /km (8:03 /mi)25:0050:001:45:293:30:58
5:30 /km (8:51 /mi)27:3055:001:56:023:52:04
6:00 /km (9:39 /mi)30:001:00:002:06:354:13:10
6:30 /km (10:28 /mi)32:301:05:002:17:084:34:16
7:00 /km (11:16 /mi)35:001:10:002:27:414:55:22
7:30 /km (12:04 /mi)37:301:15:002:38:145:16:28
8:00 /km (12:52 /mi)40:001:20:002:48:475:37:34
8:30 /km (13:41 /mi)42:301:25:002:59:205:58:39

The table assumes an even pace from start to finish. Most runners slow a little in the second half of a marathon, so treat marathon times as a best case.

How pace is calculated

Pace is time divided by distance. A 5K in 28:30 is 1,710 seconds over 5 km, which is 342 seconds per kilometre, or 5:42 per km. To convert to miles, multiply the per-km pace by 1.609: 5:42 per km is about 9:10 per mile.

To go the other way, multiply pace by distance. At 6:00 per km, a 10K takes 60 minutes and a half marathon (21.1 km) takes about 2 hours 6 minutes.

Questions people ask

How do I calculate my running pace?

Divide your time by your distance. For example, 50 minutes for 10 km is 5 minutes per kilometre. The calculator on this page does it for you in km or miles.

What is a good 5K pace for a beginner?

Many new runners finish a 5K in 30 to 40 minutes, which is 6:00 to 8:00 per km. Any pace you can hold while still breathing in control is a good place to start.

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

Multiply the pace per km by 1.609. For example, 5:00 per km is 8:03 per mile.

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