Archive · 1 Aug 2025
Why Airplanes Use Nautical Miles Instead of Kilometers
Imagine you're a sailor on a ship, or a pilot in a plane.
When traveling long distances, they don't use kilometers like we do on roads.
Instead, they use nautical miles.
A nautical mile is a special measurement designed for navigation in the air and sea.
It's based on the Earth's size, linking to latitude and longitude, making it easy to figure out where you are.
It's a historical method developed by European explorers, and one nautical mile is about 1.85 kilometers.
Nautical miles are used for air, sea, and space navigation.
One nautical mile equals 1.852 kilometers.
The nautical mile was defined in 1929 by the International Hydrographic Organization (IHO).
Nautical miles are linked to latitude and longitude.
Sailors historically used nautical miles for navigation.
- Who
- Sailors and pilots.
- What
- Nautical miles are used to measure distance in air and sea navigation.
- When
- The nautical mile was internationally defined in 1929.
- Where
- In air, sea, and space.
- Why
- Because nautical miles have a direct relationship to the degrees of latitude that have been crossed.
- Unit of Measurement
- Nautical Mile
- Kilometer Equivalent
- 1.852 km
- Defined By
- International Hydrographic Organization (IHO)
- Purpose
- Navigation in air, sea, and space