Convert mph to kph
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Convert mph to kph

This calculator converts mph to kph (miles per hour to kilometers per hour) and vice versa - kph to mph.

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One mph (mile per hour) is defined as 1.609344 kph (kilometers per hour). This unit of measurement is mostly used in USA to indicate vehicle or aircraft speed and traffic speed limits. Canadian traffic speed limits are posted in km per hour. A typical speed limit on Canadian 400-series highways in year 2024 is 100 km/h that is 62.14 mph with a 110 kph (68.35 mph) limit on select stretches. US interstate highways are limited at 65, 70 and sometimes 75 mph (104, 112 and 120 kph) depending on particular state. This calculator provides conversion of mph to kph and vice versa.

Conversion Chart

10 20 30 40 50 60 70 80

16.093 32.187 48.280 64.374 80.467 96.561 112.654 128.748

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