MPH and KPH are the units of speed. Mph stands for miles per hour and it is equal to 0.44704 m/s.
Kph stands for kilometer per hour and it is equal to 0.277777778 m/s.
For conversion of the unites, you should visit this link
Kph stands for kilometer per hour and it is equal to 0.277777778 m/s.
1 mph = 1.609344 kph
For conversion of the unites, you should visit this link