Nautical measured mile

A nautical measured mile is a specific distance used in maritime navigation and testing that precisely equals one nautical mile, which is approximately 1.15078 statute miles or 1,852 meters. The nautical mile is based on the circumference of the Earth and is defined as one minute of latitude. In practical terms, a nautical measured mile is often used to calibrate instruments, conduct speed trials for vessels, or establish a standard distance for navigation.