How do you calculate kph to mph?

Answer 1

-- take the number of kph

-- divide by 1.609344
OR
-- multiply by 0.62137

-- the answer is the number if mph

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To go the other way:

-- take the number of mph

-- multiply by 1.609344
OR
-- divide by 0.62137

-- the answer is the number if kph

Answer 2

1MPH = 1.6 KMH, you do the math.

Answer 3

km/h x 0.621371 = mph

Answer 4

kph x 0.621 = mph

Answer 5

kmh x 0.621371 = mph

Answer 6

kph x 0.621= mph