Conversion in the opposite direction
The inverse of the conversion factor is that 1 foot per second is equal to 0.00102529049897471 times 665 miles per hour.
It can also be expressed as: 665 miles per hour is equal to feet per second.
An approximate numerical result would be: six hundred and sixty-five miles per hour is about nine hundred and seventy-five point three three feet per second, or alternatively, a foot per second is about zero times six hundred and sixty-five 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.