With this information, you can calculate the quantity of feet per second 698 knots is equal to.

¿What is the inverse calculation between 1 foot per second and 698 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.00084883066 times 698 knots.

Which is the same to say that 698 knots is 1178.0913 feet per second.

Six hundred ninety-eight knots equals to one thousand one hundred seventy-eight feet per second. *Approximation

A foot per second is zero times six hundred ninety-eight knots. *Approximation