Nautical Mile (nmi)
The nautical mile is a unit of length, used for maritime navigation, aviation distances, and territorial water boundaries. Its symbol is nmi.
nmi
km
1 nautical mile equals
| Kilometers | 1.852 km |
| Miles | 1.15078 mi |
| Meters | 1,852 m |
| Feet | 6,076.12 ft |
About the nautical mile
The nautical mile was originally defined as one minute of arc along a meridian of the Earth. It was internationally standardized as exactly 1,852 meters in 1929.
In everyday use the nautical mile appears in maritime navigation, aviation distances, and territorial water boundaries. As a point of reference: the English Channel at its narrowest point is about 18.5 nautical miles.