With this information, you can calculate the quantity of knots 664 feet per minute is equal to.

¿What is the inverse calculation between 1 knot and 664 feet per minute?

Performing the inverse calculation of the relationship between units, we obtain that 1 knot is 0.15251294 times 664 feet per minute.

Which is the same to say that 664 feet per minute is 6.5568207 knots.

Six hundred sixty-four feet per minute equals to six knots. *Approximation

A knot is zero times six hundred sixty-four feet per minute. *Approximation