Convert mph to kph

Mile/hour

Miles per hour (mph, MPH or mi/h) is a British imperial and United States customary unit of speed expressing the number of statute miles covered in one hour. It is used in the United Kingdom, the United States, and a number of smaller countries, most of which are UK or US territories, or have close historical ties with the UK or US.

Kilometre/hour

The kilometre per hour (SI symbol: km/h; abbreviations: kph, kmph, km/hr) is a unit of speed, expressing the number of kilometres travelled in one hour.

Internationally, km/h is the most commonly used unit of speed on traffic signs and road vehicle speedometers.

Mile/hour to Kilometre/hour conversion table

Mile/hour	Kilometre/hour	Kilometre/hour	Mile/hour
1	1.60934	1	0.621371
2	3.21869	2	1.24274
3	4.82803	3	1.86411
5	8.04672	5	3.10686
10	16.0934	10	6.21371
20	32.1869	20	12.4274
25	40.2336	25	15.5343
50	80.4672	50	31.0686
100	160.934	100	62.1371
250	402.336	250	155.343
500	804.672	500	310.686
1000	1609.34	1000	621.371

How to convert Mile/hour to Kilometre/hour

1 mi/h = 1.60934 km/h. To convert any value, multiply it by 1.60934. For example, 25 mi/h = 40.2336 km/h.

Frequently asked questions

How many km/h are there in one mi/h?: One mi/h is equal to 1.60934 km/h.
How do you convert Mile/hour to Kilometre/hour?: Multiply the value in Mile/hour by 1.60934 to get the result in Kilometre/hour.
How much is 25 mi/h in km/h?: 25 mi/h is equal to 40.2336 km/h.
How do you convert Kilometre/hour back to Mile/hour?: Divide by the same factor: multiply the value in Kilometre/hour by 0.621371 to get Mile/hour.