Definition:Imperial/Length/International Mile
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Definition
The (international) mile is an imperial unit of length.
\(\displaystyle \) | \(\) | \(\displaystyle 1\) | (international) mile | ||||||||||
\(\displaystyle \) | \(=\) | \(\displaystyle 8\) | furlongs | ||||||||||
\(\displaystyle \) | \(=\) | \(\displaystyle 80\) | chains | ||||||||||
\(\displaystyle \) | \(=\) | \(\displaystyle 320\) | rods, poles or perches | ||||||||||
\(\displaystyle \) | \(=\) | \(\displaystyle 1760\) | yards | ||||||||||
\(\displaystyle \) | \(=\) | \(\displaystyle 1609 \cdotp 344\) | metres (exactly) |
Also known as
An international mile is usually referred to just as a mile.
It is sometimes seen referred to as a statute mile, but this is an older term dating back to before the precise $1959$ definition based on the metre.
There are many other kinds of mile.
Historical Note
The international mile was a readjustment and redefinition in $1959$ of the statute mile.
The latter had been defined by statute in $1593$ under the reign of Queen Elizabeth I of England.
Previously there were a number of different and variously-defined miles used throughout not only the world, but also the British Isles.
Sources
- 1944: Alfred E. Holbrow: Geometrical Drawing (12th ed.) ... (previous) ... (next): Section $\text I$. Introduction
- 1966: Isaac Asimov: Understanding Physics ... (previous) ... (next): $\text {I}$: Motion, Sound and Heat: Chapter $2$: Falling Bodies: Free Fall
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $11$
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $1760$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $11$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $1760$
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Entry: mile
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Entry: statute mile
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Entry: mile
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Entry: statute mile