657 feet per second in knots
Conversion
657 feet per second is equivalent to 389.261857451404 knots.[1]
Conversion in the opposite direction
The inverse of the conversion factor is that 1 knot is equal to 0.00256896477488766 times 657 feet per second.
It can also be expressed as: 657 feet per second is equal to knots.
Approximation
An approximate numerical result would be: six hundred and fifty-seven feet per second is about three hundred and eighty-nine point two five knots, or alternatively, a knot is about zero times six hundred and fifty-seven feet per second.
Footnotes
[1] 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.