Where use the nautical mile and statue mile?

The nautical mile is used in sea-going and aviation navigation, as well as in regard to international treaties due to its convenient relation to the longitudinal system for plotting geographic locations on the globe. One nautical mile is approximately equal to one minute in longitude on any meridian latitudinal line.

One nautical mile is equal to 1852 meters. One nautical mile is equal to approximately 1.15 statute miles. This is also the purpose of the unit of speed measurement the "knot" as one knot is equal to 1.15 miles per hour, thus the knot is a measurement of nautical miles per hour.