With this information, you can calculate the quantity of feet per second 660 knots is equal to.

¿What is the inverse calculation between 1 foot per second and 660 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.00089770273 times 660 knots.

Which is the same to say that 660 knots is 1113.9545 feet per second.

Six hundred sixty knots equals to one thousand one hundred thirteen feet per second. *Approximation

A foot per second is zero times six hundred sixty knots. *Approximation