Convert nautical mile (international) to meter
Nautical Mile (International)
The international nautical mile is a unit of length defined as exactly 1,852 metres, adopted by the First International Extraordinary Hydrographic Conference in Monaco in 1929 and now in universal use for maritime and aeronautical navigation. It is closely related to the degree of arc along a great circle of Earth, with one nautical mile corresponding approximately to one minute of latitude. While not an SI unit, it is accepted for use with the SI.
Meter
The metre (Commonwealth spelling and BIPM spelling) or meter (American spelling) (from the French unit mètre, from the Greek noun μετρούν, "measure") is the base unit of length in the International System of Units (SI). The SI unit symbol is m. The metre is defined as the length of the path travelled by light in a vacuum in 1/299,792,458 of a second.
The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth's circumference is approximately 40000 km. In 1799, the metre was redefined in terms of a prototype metre bar (the actual bar used was changed in 1889). In 1960, the metre was redefined in terms of a certain number of wavelengths of a certain emission line of krypton-86. In 1983, the current definition was adopted.