Convert kilometers per second to nautical mile per hour

The nautical mile is 1,852 m, defined so that it matches one minute of latitude: a degree of latitude is 60 nautical miles, which lets a navigator read distances straight off the edge of a chart. The knot is one nautical mile per hour, 1.852 km/h, and is the standard speed unit at sea, in the air and in weather reports. A gale, force 8 on the Beaufort scale, begins at 34 knots.

The SI unit of speed converts simply: 1 m/s is exactly 3.6 km/h, about 2.24 mph or 1.94 knots. A brisk walk is 1.5 m/s, a sprinter peaks at 12, sound travels at 343 m/s and a satellite in low orbit at 7.7 km/s. Weather services in the Nordic countries, Russia, Japan and China give wind speeds in m/s, where a strong breeze (Beaufort 6) is 11–14 m/s and a storm starts at 25; lifts are rated in m/s too, the fastest reaching 20. Metres per minute is the unit of conveyor belts and machining feeds.