Conversion in the opposite direction
The inverse of the conversion factor is that 1 kilometer per hour is equal to 0.00141865569003958 times 438 miles per hour.
It can also be expressed as: 438 miles per hour is equal to kilometers per hour.
An approximate numerical result would be: four hundred and thirty-eight miles per hour is about seven hundred and four point eight eight kilometers per hour, or alternatively, a kilometer per hour is about zero times four hundred and thirty-eight miles per hour.
 The precision is 15 significant digits (fourteen digits to the right of the decimal point).Results may contain small errors due to the use of floating point arithmetic.