Please note that km is a distance, while mph is a speed, so you can't convert that directly. For a speed problem, first convert the kilometers to miles, then use the formula:
distance = speed x time
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154 mph is equal to 247.839 km/hr. 1 mph = 1.60934 km/hr.
85 mph = 136.8 kph The formula to convert 85 mph to kmph 85 mi* 1.609344 km 1 mi = 136.79424 km
240 miles is equal to about 386.24 kilometers. The formula convert 240 mph to km/h 240 mi* 63360 in 1 mi * 2.54 cm 1 in * 1 km 100000 cm = 386.24256 km
Kilometers is a distance 15 mph is a speed but 15 mph = 24.14 kilometers per hour The formula to convert miles to km15 mi* 1.609344 km 1 mi = 24.14016 km
Answer: 40 mph = 64.3737 km/h