With this information, you can calculate the quantity of feet per second 685 knots is equal to.
¿What is the inverse calculation between 1 foot per second and 685 knots?
Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.00086493986 times 685 knots.
Which is the same to say that 685 knots is 1156.1498 feet per second.
Six hundred eighty-five knots equals to one thousand one hundred fifty-six feet per second. *Approximation
A foot per second is zero times six hundred eighty-five knots. *Approximation
