Unit Name kilometer/hour 1 unit = x kilometer/hour
centimeter/second 27.78 0.0359971
inch/minute 694.5 0.0014399
inch/second 10.9370079 0.0914327
kilometer/hour 1 1
kilometer/second 0.0002778 3599.712023
meter/second 0.2778 3.599712
mile/hour 0.6214765 1.6090713
mile/second 0.0001726 5793.174946
nautical mile/hour 0.5400467 1.8516919
speed of sound [air] 0.0008164 1224.9460043