With this information, you can calculate the quantity of kilometers per hour 397 knots is equal to.

¿What is the inverse calculation between 1 kilometer per hour and 397 knots?

Performing the inverse calculation of the relationship between units, we obtain that 1 kilometer per hour is 0.0013600927 times 397 knots.

Which is the same to say that 397 knots is 735.244 kilometers per hour.

Three hundred ninety-seven knots equals to seven hundred thirty-five kilometers per hour. *Approximation

A kilometer per hour is zero times three hundred ninety-seven knots. *Approximation