In order to get a velocity in kilometers to miles per hour, simply multiply that number by 0.621371.
For example, (70km) * (0.621371) = 43.49597 miles per hour or simply 43.5mph
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1km = 0.62mi
71km/h x 0.62mi/km = 44mi/h (44.02 rounded to two significant figures)
Kilometers is a measure of distance. MPH is a measure of speed. So there is no equivalency. 197 kilometers is 122.4 miles