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

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

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.0010330579 times 660 miles per hour.

Which is the same to say that 660 miles per hour is 968 feet per second.

Six hundred sixty miles per hour equals to nine hundred sixty-eight feet per second. *Approximation

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