how fast is 50km in mph

0 kilometers per hour (km/h) is equal to 0 miles per hour (mph). This means if something is moving at 0 km/h, it is not moving at all in mph as well. The conversion formula to convert km/h to mph is to multiply the speed in km/h by approximately 0.621371, so: 0×0.621371=0 mph0\times 0.621371=0\text{ mph}0×0.621371=0 mph Thus, 0 km/h corresponds exactly to 0 mph.