With this information, you can calculate the quantity of meters per second 643 knots is equal to.

¿What is the inverse calculation between 1 meter per second and 643 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 meter per second is 0.0030230863 times 643 knots.

Which is the same to say that 643 knots is 330.78778 meters per second.

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

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