Convert Millimeter/Second (mm/s) to Knot (UK) (kt (UK)) instantly.
About these units
Millimeter/Second (mm/s)
A millimeter per second is a useful speed in robotics, precision machining, biomechanics, and controlled engineering systems. Robotic arms performing delicate manipulation, small servo motors, and scanning instruments often operate in the mm/s speed range. In seismology, mm/s measures the vibration velocities of the ground during micro tremors, making it essential in structural engineering and earthquake monitoring. It reflects the world of fine-scale, controlled motion—beyond what the human eye typically detects.
Knot (UK) (kt (UK))
The UK knot historically varied slightly from the international knot because the UK used different values for the nautical mile depending on era and maritime authority. Though the differences were minor, they mattered in navigation, where precision affects charting, dead reckoning, and ocean voyaging. Modern UK practice fully aligns with the international knot (1 nautical mile per hour), but historical documents and charts may reference older UK knot values. The knot's rich maritime heritage—used by sailors measuring speed with knotted ropes dragged along the water—makes it one of the oldest continuously used speed units.