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Kilometers to Miles converter

Type a value and get the answer instantly. Multiply the kilometers value by 0.62137.

Miles0.62137mi
Formula: mi = km × 0.62137 — rounded from the exact definition 1 mile = 1.609344 km.

Full kilometres to miles table

KilometresMiles
1 km0.62 mi
2 km1.24 mi
3 km1.86 mi
4 km2.49 mi
5 km3.11 mi
6 km3.73 mi
7 km4.35 mi
8 km4.97 mi
9 km5.59 mi
10 km6.21 mi
15 km9.32 mi
20 km12.43 mi
25 km15.53 mi
30 km18.64 mi
40 km24.85 mi
50 km31.07 mi
60 km37.28 mi
70 km43.50 mi
80 km49.71 mi
90 km55.92 mi
100 km62.14 mi
150 km93.21 mi
200 km124.27 mi
500 km310.69 mi
1000 km621.37 mi

Common running and driving distances

DistanceKilometresMiles
5K run5 km3.11 mi
10K run10 km6.21 mi
Half marathon21.0975 km13.11 mi
Marathon42.195 km26.22 mi
Speed limit (NL motorway)100 km/h62.1 mph
Speed limit (UK motorway)112.7 km/h70 mph
The mile-to-kilometre factor is exact by definition: the international mile was fixed at 1,609.344 metres in 1959, so 1.609344 is not a rounded approximation. A useful mental shortcut for kilometres to miles is to multiply by 6 and drop a digit (100 km → 600 → 60 mi, close to the true 62.1). For running, remember a marathon is 42.195 km, not a round 42.

Related

Miles to Kilometers (reverse)All unit conversions

Frequently asked

How many miles is 1 kilometer?

1 km is 0.62137 mi. The factor is rounded from the exact definition 1 mile = 1.609344 km.

How do I convert kilometers to miles?

Multiply the kilometers value by 0.62137. Formula: mi = km × 0.62137.

How many miles is 1 km?

0.621371 miles. The exact reverse factor is 1 mile = 1.609344 km.

How many miles is 10 km?

6.21 miles — the distance of a 10K run.

How many miles is 100 km?

62.14 miles.

Is the km to miles factor exact?

Yes. The international mile is defined as exactly 1,609.344 metres, so both conversion factors are exact rather than rounded.