There is not a conversion for mph to hours.
74 mph is approximately equal to 119 kilometers per hour.
55
6 mph = 9.6561 km/h
647 mph is equivalent to approximately 1,041 kilometers per hour.
1 Km/h is equal to .621 Mph. 175 * 0.621 = 108.74 Mph
88 km/h = about 54.681 mph
50 miles per hour = 80,470 meters per hour.
121 kilometers per hour is approximately equal to 75 miles per hour.
32 kilometers per hour equal approximately 20 miles per hour.
40 mph = 64.4 kilometers per hour.
110 km/h is equal to 68.3mph.
mph or 'miles per hour' is a unit and can equal any value of speed or velocity.