What is a natical mile?
The international standard definition is: 1 nautical mile = 1852 metres exactly. This corresponds approximately to one minute of latitude along any meridian.
There is no widely accepted international standard symbol for the unit nautical mile. The preferred abbreviation of the IEEE is nmi, while M is used by the BIPM and the maritime authorities of the USA, and Canada . Other abbreviations in widespread use are nm and NM.
There are several national unit symbols in use (for example, mpk (meripeninkulma, " ...more