knot
Non-SI unit
| Name | Symbol | Quantity | Expressed in terms of SI base units | Expressed in terms of other SI units | |
| knot | kn | speed | 1852⁄3600 m s−1 |  |
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DefinitionThe knot, symbol kn, is a non-SI unit of speed. The knot is not accepted for use with the SI. One knot is equal to one nautical mile per hour, or 1852⁄3600 m s−1 |
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Metric System 