@shyori310
Do you mean that MSM wind speed forecast expressed in knots or in m/s gives the same values ?
In this example values expressed in m/s and in kt are consistent

BA3B7A76-3C7B-47FA-828A-3A2B852F580C.jpeg

B6F29039-F266-4275-98EF-6D6B342391A6.jpeg

5 m/s = 9,71922 knots = about 10 kt