Answer: 42 mph = 67.5924 km/h
To convert miles to kilometers, multiply by 1.6. The same if you want to convert miles/hour to kilometers/hour.
Divide km per hour by 1.609
roughly MPH X 1.609
70 miles per hour is 112 kilometers per hour. The formula to convert miles to km 70 mi* 1.609344 km 1 mi = 112.65408 km
To convert miles per hour to kilometres per hour, multiply by 1.609344. Therefore, 187 miles per hour is equal to 187 x 1.609344 = 300.947328 kilometres per hour.
To convert miles to kilometers, multiply by 1.6. The same if you want to convert miles/hour to kilometers/hour.
48.28kph
Conversion: mph x 1.6093 = kilometers per hour
Divide km per hour by 1.609
You cannot convert 25 "kilometers" as a length measure in miles per hour as a speed. 25 kilometers per hour are 15.5 miles per hour.
Multiply miles per hour (mph) by 1.609 to get kilometers per hour (km/h)
Multiply the mph by 1.609
1 Kilometer per Hour = 0.621371192237334 Miles per Hour.So, multiplying it to km/hr we can get mile/hr.
Multiply miles per second by 5,793 to get kilometers per hour. (mps x 5793 = kph)
Multiply miles per hour by 1.60934 to get km per hour.
Suggestion: Convert miles to kilometers, then it should be easy to compare. One mile is about 1.6 kilometers.
One kilometer per hour = 0.621371 miles per hour so: Kph x 0.621371=Mph