Mile
A mile is a unit of length. There are many different kinds of mile but mile on its own usually means the statute mile.
Statute mile[change | change source]
In the US and the UK the word mile usually means the statute mile.
| Feet | Yard | Chain | Furlong | Mile | Kilometres |
|---|---|---|---|---|---|
| 5,280 | 1,760 | 80 | 8 | 1 | 1.609344 |
Nautical mile[change | change source]
The nautical mile is used for sea or air travel.
The nautical mile was originally defined as one minute of arc along a line of longitude of the Earth. There are 60 minutes of arc in one degree or arc (60' = 1°). So there were 10,800 nautical miles from the North Pole to the South Pole.
Now the nautical mile is defined as 1,852 metres.
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1 nautical mile = 1,852 metres (by definition) ≈ 6,076 feet ≈ 1.151 statute miles
The speed of a ship that travels one nautical mile in one hour is called one knot
Roman mile[change | change source]
The mile was first used by the Romans. It comes from the Latin phrase mille passus (plural: milia passuum). This means "one thousand paces". A pace is the distance each foot moves when taking one step.
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1 Roman mile = 1,000 Roman paces (by definition) ≈ 1,479 metres ≈ 4,852 feet
Other miles[change | change source]
Different miles have been used throughout history in various parts of the world. In Norway and Sweden, for example, a mil is a unit of length which is equal to 10 kilometres.
