Conversion in the opposite direction
The inverse of the conversion factor is that 1 knot is equal to 0.00262735033795329 times 438 miles per hour.
It can also be expressed as: 438 miles per hour is equal to knots.
An approximate numerical result would be: four hundred and thirty-eight miles per hour is about three hundred and eighty point six one knots, or alternatively, a knot 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.