668 knots in feet per second
Result
The conversion result is: 668 knots is equivalent to 1127.4569845436 feet per second.[1]
Conversion in the opposite direction
The inverse of the conversion factor is that 1 foot per second is equal to 0.00088695179834715 times 668 knots.
It can also be expressed as: 668 knots is equal to 1 / 0.00088695179834715 feet per second.
Approximation
An approximate numerical result would be: six hundred and sixty-eight knots is about one thousand, one hundred and twenty-seven point four six feet per second, or alternatively, a foot per second is about zero times six hundred and sixty-eight knots.
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.