With this information, you can calculate the quantity of feet per second 856 miles per hour is equal to.

¿What is the inverse calculation between 1 foot per second and 856 miles per hour?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.00079651657 times 856 miles per hour.

Which is the same to say that 856 miles per hour is 1255.4667 feet per second.

Eight hundred fifty-six miles per hour equals to one thousand two hundred fifty-five feet per second. *Approximation

A foot per second is zero times eight hundred fifty-six miles per hour. *Approximation