With this information, you can calculate the quantity of feet per second 691 kilometers per hour is equal to.
¿What is the inverse calculation between 1 foot per second and 691 kilometers per hour?
Performing the inverse calculation of the relationship between units, we obtain that 1 foot per second is 0.0015879595 times 691 kilometers per hour.
Which is the same to say that 691 kilometers per hour is 629.73899 feet per second.
Six hundred ninety-one kilometers per hour equals to six hundred twenty-nine feet per second. *Approximation
A foot per second is zero times six hundred ninety-one kilometers per hour. *Approximation
