138 feet per second in knots
Conversion
138 feet per second is equivalent to 81.7627645788337 knots.[1]
Conversion in the opposite direction
The inverse of the conversion factor is that 1 knot is equal to 0.0122305062108782 times 138 feet per second.
It can also be expressed as: 138 feet per second is equal to knots.
Approximation
An approximate numerical result would be: one hundred and thirty-eight feet per second is about eighty-one point seven six knots, or alternatively, a knot is about zero point zero one times one hundred and thirty-eight 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.