You can't compare a distance (in kilometers) with a speed (in kilometers per hour).
120 kph = 74.6 mph
120 mph, which is around 193 kph.
55 miles is about 88.5 kilometers. So, 55 mph is 88.5 kph.
100 kilometers is a measure of length and distance, not speed. 100 km/h is a measure of speed, which is pretty fast.
225 kph = ~139.81 mph
65 mph = 104.6 kph
131 mph = 210.8 kph
Miles per gallon can't be converted to kilometers per hour. Miles per gallon measure fuel economy, while kilometers per hour measure speed.
Speedometer measure thing in mph (Miles Per Hour) or kph (Kilometers Per Hour).
120 km/h = about 74 (74.5645431) mph.
A speedometer measures the speed a vehicle is traveling in miles per hour (MPG) or kilometers per hour (KPH).
miles... in kph??? Anyway, the speed of light is 300,000 kilometers/second; you can convert that to whatever unit you want. For example, to convert to kilometers/hour, multiply by 3600.