With this information, you can calculate the quantity of feet per second 691 knots is equal to.
¿What is the inverse calculation between 1 foot per second and 691 knots?
Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.00085742952 times 691 knots.
Which is the same to say that 691 knots is 1166.2766 feet per second.
Six hundred ninety-one knots equals to one thousand one hundred sixty-six feet per second. *Approximation
A foot per second is zero times six hundred ninety-one knots. *Approximation
