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

Divide your per-mile pace by 1.609344 since a mile is exactly that many kilometers. An 8:00 per mile pace becomes 4:58 per kilometer. Pick min/mi above, type your pace, and our running pace converter shows the per-km pace along with both speeds instantly.

How do I convert km/h to running pace?

Divide 3,600 by your speed in km/h to get your pace in seconds per kilometer. Running 12 km/h works out to 300 seconds, or 5:00 per kilometer. Select km/h above, enter the speed, and read your pace and mile equivalent right away. This makes an excellent treadmill pace calculator.

How many kilometers is a mile?

One mile is exactly 1.609344 kilometers. This was fixed by international agreement in 1959. So 5 miles is 8.05 km and a 10 km run is 6.21 miles. Use the distance helper below the calculator to switch any race length or training run between the two units.

What is a good running pace in km/h?

It depends on your fitness. An easy run pace calculator might suggest a jog near 9 to 10 km/h. A strong recreational runner cruises around 12 km/h, which is 5:00 per kilometer. The converter shows km/h, mph, and both paces together so you can compare against any reference.

Pace Calculators

Running Pace Converter

Convert freely between min/km, min/mile, mph, and km/h. Enter one value and see every equivalent at once.

Convert from

Pace per mile

/mi

mm:ss per unit, like 8:00.

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Enter a pace or speed to see every equivalent.

Pace per km

4:58 /km

km/h

12.1

mph

7.5

Race finish times

24:51

10K

49:43

Half

1:44:53

Marathon

3:29:45

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Miles ⇄ kilometres

A quick distance helper. Enter either box to convert race lengths and training runs.

Miles

Kilometres

Common pace conversions

Each row is the same effort in every unit. Find a pace, then read across.

Common pace conversions
min/km	min/mi	km/h	mph
4:00	6:26	15.0	9.3
4:15	6:50	14.1	8.8
4:30	7:15	13.3	8.3
4:45	7:39	12.6	7.8
5:00	8:03	12.0	7.5
5:15	8:27	11.4	7.1
5:30	8:51	10.9	6.8
5:45	9:15	10.4	6.5
6:00	9:39	10.0	6.2
6:15	10:04	9.6	6.0
6:30	10:28	9.2	5.7

A running pace converter turns one number into all the others. Enter a pace or a speed in any unit. You instantly read the same effort as min/km, min/mile, km/h, and mph. It also doubles as a race pace predictor, showing finish times for standard distances.

Runners hop between units constantly. Your watch shows min/km. A training plan lists min/mile. The gym treadmill only speaks km/h or mph. This tool keeps all four in sync so you never have to guess.

How the conversion works

1 mile = 1.609344 km

Every conversion here rests on one fixed number. A mile is 1.609344 kilometers. To turn a mile pace into a kilometer pace, divide by 1.609344. To turn a pace into a speed, divide 3,600 by the seconds per unit. Everything else follows from those two steps.

Miles to km pace calculator

Coming from a US or UK plan written in minutes per mile? Select min/mi, enter your pace, and the converter highlights the per-kilometer equivalent. This is the number Tokyo race markers, pace groups, and your GPS watch all use. An 8:00 mile is 4:58 per km. A 9:00 mile is 5:35 per km. It makes translating an international training plan effortless.

Km to miles pace calculator

Training in metric but racing somewhere that thinks in miles? Pick min/km and read across to min/mile. A 5:00 per km pace is 8:03 per mile. A 4:30 per km pace is 7:14 per mile. The two speeds update alongside so you can set a treadmill in either km/h or mph. It works backwards and forwards perfectly as a km to miles pace calculator.

Pace versus speed

Pace and speed measure the same effort in opposite directions. Pace is time per distance, like 5:00 per kilometer. It is how most runners think. Speed is distance per time, like 12.0 km/h. It is what treadmills and cyclists show. Switching between km/h and mph is just the mile factor again. Next time you are stuck at the gym, use this as a treadmill pace calculator to match the machine speed to your training plan.

Finish times for any distance

You do not just get unit conversions. Enter your target rhythm and this tool acts as a 5K pace calculator, 10K pace calculator, half marathon pace calculator, and marathon pace calculator all at once. Whether you are finding the right tempo run pace calculator target or setting up an interval pace calculator plan, it immediately shows the race times you can expect.

Running in Tokyo

In Tokyo, everything is metric. Race distance markers, pace groups, and course maps all use kilometers. If you arrive with a marathon training plan built in miles, convert it here first. Using our kilometer pace calculator ensures your paces line up with what you will actually see on the road.

Want people to run those paces with? Our free weekly email rounds up community runs across the city. Our club directory helps you find a group running at your speed.

Find your running community in Tokyo

Get a free weekly email of upcoming running events across Tokyo.

How to use this tool

Pick your unit

Choose the unit you already have. You can pick min/km, min/mile, km/h, or mph.
Enter one value

Type your pace as mm:ss, or your speed as a number. The tool does the rest.
Read every equivalent

See the other three units instantly. You also get 5K, 10K, half marathon, and marathon finish times at that pace.

Pace and speed units

Pace counts time per distance. Speed counts distance per time. They represent the same effort read two ways.

The four ways runners describe the same effort
Unit	What it measures	Common use
min/km	Time per kilometer	Metric runners, most of the world
min/mile	Time per mile	US and UK runners
km/h	Distance per hour	Treadmills, cycling, metric speed
mph	Distance per hour	US treadmills and road signs

Sources

NIST Special Publication 811(opens in new tab)

FAQ

How do I convert min/mile to min/km?: Divide your per-mile pace by 1.609344 since a mile is exactly that many kilometers. An 8:00 per mile pace becomes 4:58 per kilometer. Pick min/mi above, type your pace, and our running pace converter shows the per-km pace along with both speeds instantly.
How do I convert km/h to running pace?: Divide 3,600 by your speed in km/h to get your pace in seconds per kilometer. Running 12 km/h works out to 300 seconds, or 5:00 per kilometer. Select km/h above, enter the speed, and read your pace and mile equivalent right away. This makes an excellent treadmill pace calculator.
How many kilometers is a mile?: One mile is exactly 1.609344 kilometers. This was fixed by international agreement in 1959. So 5 miles is 8.05 km and a 10 km run is 6.21 miles. Use the distance helper below the calculator to switch any race length or training run between the two units.
What is a good running pace in km/h?: It depends on your fitness. An easy run pace calculator might suggest a jog near 9 to 10 km/h. A strong recreational runner cruises around 12 km/h, which is 5:00 per kilometer. The converter shows km/h, mph, and both paces together so you can compare against any reference.