With this information, you can calculate the quantity of feet per second 635 knots is equal to.

¿What is the inverse calculation between 1 foot per second and 635 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.00093304536 times 635 knots.

Which is the same to say that 635 knots is 1071.7593 feet per second.

Six hundred thirty-five knots equals to one thousand seventy-one feet per second. *Approximation

A foot per second is zero times six hundred thirty-five knots. *Approximation