Knot
A unit of speed equal to one nautical mile per hour — about 1.852 km/h.
Definition
A knot (kn or kt) is a unit of speed equal to one nautical mile per hour. It equals exactly 1.852 kilometres per hour or approximately 1.151 miles per hour. It is the standard unit of speed for aviation and maritime navigation worldwide.
Formula
1 kn = 1.852 km/h = 0.5144 m/s
Examples
- Commercial aircraft cruise at about 450–500 knots.
- A typical sailing yacht travels at 5–10 knots.