With this information, you can calculate the quantity of meters per second 645 knots is equal to.

¿What is the inverse calculation between 1 meter per second and 645 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 meter per second is 0.0030137124 times 645 knots.

Which is the same to say that 645 knots is 331.81667 meters per second.

Six hundred forty-five knots equals to three hundred thirty-one meters per second. *Approximation

A meter per second is zero times six hundred forty-five knots. *Approximation