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

¿What is the inverse calculation between 1 knot and 664 miles per hour?

Performing the inverse calculation of the relationship between units, we obtain that 1 knot is 0.0017331016 times 664 miles per hour.

Which is the same to say that 664 miles per hour is 577.00022 knots.

Six hundred sixty-four miles per hour equals to five hundred seventy-seven knots. *Approximation

A knot is zero times six hundred sixty-four miles per hour. *Approximation