642 meters per second in knots
Conversion
642 meters per second is equivalent to 1247.94816414687 knots.[1]
Conversion in the opposite direction
The inverse of the conversion factor is that 1 knot is equal to 0.000801315334025614 times 642 meters per second.
It can also be expressed as: 642 meters per second is equal to knots.
Approximation
An approximate numerical result would be: six hundred and forty-two meters per second is about one thousand, two hundred and forty-seven point nine five knots, or alternatively, a knot is about zero times six hundred and forty-two meters 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.