With this information, you can calculate the quantity of kilometers per hour 685 knots is equal to.
¿What is the inverse calculation between 1 kilometer per hour and 685 knots?
Performing the inverse calculation of the relationship between units, we obtain that 1 kilometer per hour is 0.00078825811 times 685 knots.
Which is the same to say that 685 knots is 1268.62 kilometers per hour.
Six hundred eighty-five knots equals to one thousand two hundred sixty-eight kilometers per hour. *Approximation
A kilometer per hour is zero times six hundred eighty-five knots. *Approximation