How it works
km/h = mph ÷ 0.621371192237.
Enter a value in miles per hour to get its equivalent in kilometers per hour. Use the inverse button to switch conversion direction.
1 mph = 1.61 km/h
km/h = mph ÷ 0.621371192237.
The result expresses the value entered in miles per hour as kilometers per hour. A speed conversion does not change the applicable local speed limit. Check the unit printed on each sign.
Last verified:
km/h = mph ÷ 0.621371192237.