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Kilometers per hour to Miles per hour

Type a value in either box. 1 km/h = 0.621371 mph.

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How to convert kilometers per hour to miles per hour

1 km/h = 0.6213711922 mph, and 1 mph = 1.609344 km/h. To convert kilometers per hour to miles per hour, use:

mph = km/h × 0.6213711922

Example: convert 100 km/h to miles per hour: 100 × 0.6213711922 = 62.137119, so 100 km/h = 62.1371 mph.

Good to know

Divide by 1.6 for a quick answer. 100 km/h is about 62 mph and 120 km/h is about 75 mph.

Kilometers per hour to Miles per hour chart

Kilometers per hour (km/h)Miles per hour (mph)
1 km/h0.621371 mph
5 km/h3.10686 mph
10 km/h6.21371 mph
20 km/h12.4274 mph
30 km/h18.6411 mph
40 km/h24.8548 mph
50 km/h31.0686 mph
60 km/h37.2823 mph
70 km/h43.496 mph
80 km/h49.7097 mph
90 km/h55.9234 mph
100 km/h62.1371 mph
110 km/h68.3508 mph
120 km/h74.5645 mph
130 km/h80.7783 mph
150 km/h93.2057 mph
200 km/h124.274 mph
300 km/h186.411 mph

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