With this information, you can calculate the quantity of knots 685 miles per hour is equal to.

¿What is the inverse calculation between 1 knot and 685 miles per hour?

Performing the inverse calculation of the relationship between units, we obtain that 1 knot is 0.00167997 times 685 miles per hour.

Which is the same to say that 685 miles per hour is 595.24873 knots.

Six hundred eighty-five miles per hour equals to five hundred ninety-five knots. *Approximation

A knot is zero times six hundred eighty-five miles per hour. *Approximation