How many nautical miles does one degree of latitude equal?

One degree of latitude is equal to 60 nautical miles. This consistency is due to the Earth's spherical shape and the definition of a nautical mile, which is based on the circumference of the Earth. Since the Earth is divided into 360 degrees of latitude, if you take the total circumference of the Earth (which is about 21,600 nautical miles) and divide it by the total number of degrees (360), you arrive at the fact that each degree of latitude equals approximately 60 nautical miles.

This measurement is crucial for navigation, as it assists mariners in calculating distances and understanding their position on the Earth's surface while at sea. Each degree north or south from the Equator translates into a geographical distance that is predictable and reproducible, making it fundamental for safe and accurate navigation.