With this information, you can calculate the quantity of feet per minute 686 knots is equal to.

¿What is the inverse calculation between 1 foot per minute and 686 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 foot per minute is 1.439465e-05 times 686 knots.

Which is the same to say that 686 knots is 69470.254 feet per minute.

Six hundred eighty-six knots equals to sixty-nine thousand four hundred seventy feet per minute. *Approximation

A foot per minute is one times six hundred eighty-six knots. *Approximation