Conversion in the opposite direction
The inverse of the conversion factor is that 1 mile per hour is equal to 0.00188517566409597 times 778 feet per second.
It can also be expressed as: 778 feet per second is equal to miles per hour.
An approximate numerical result would be: seven hundred and seventy-eight feet per second is about five hundred and thirty point four five miles per hour, or alternatively, a mile per hour is about zero times seven hundred and seventy-eight feet per second.
 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.