With this information, you can calculate the quantity of feet per second 643 knots is equal to.
¿What is the inverse calculation between 1 foot per second and 643 knots?
Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.0009214367 times 643 knots.
Which is the same to say that 643 knots is 1085.2617 feet per second.
Six hundred forty-three knots equals to one thousand eighty-five feet per second. *Approximation
A foot per second is zero times six hundred forty-three knots. *Approximation
