nautical mile
Non-SI unit
| Name | Symbol | Quantity | Expressed in terms of SI base units | Expressed in terms of other SI units | |
| nautical mile | M NM nmi |
length | 1852 m |  |
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DefinitionThe nautical mile, symbol M, NM, or nmi, is a non-SI unit of length. The nautical mile is not accepted for use with the SI. |
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Metric System 