Definition:British Units of Length
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Definition
The British units of length consists of a system of length based on the yard.
As such, they form a subset of the imperial system.
Microinch
The microinch is an imperial unit of length.
| \(\ds \) | \(\) | \(\ds 1\) | microinch | |||||||||||
| \(\ds \) | \(=\) | \(\ds 10^{-3}\) | mil | |||||||||||
| \(\ds \) | \(=\) | \(\ds 10^{-6}\) | inch | |||||||||||
| \(\ds \) | \(=\) | \(\ds 0 \cdotp 0254\) | micrometre | \(\quad\) (exact) | ||||||||||
| \(\ds \) | \(=\) | \(\ds 2 \cdotp 54 \times 10^{-5}\) | millimetres | \(\quad\) (exact) | ||||||||||
| \(\ds \) | \(=\) | \(\ds 2 \cdotp 54 \times 10^{-8}\) | metres | \(\quad\) (exact) |
Mil
The mil is an imperial unit of length.
| \(\ds \) | \(\) | \(\ds 1\) | mil | |||||||||||
| \(\ds \) | \(=\) | \(\ds \dfrac 1 {1000}\) | \(\ds = 10^{-3}\) | inch | ||||||||||
| \(\ds \) | \(=\) | \(\ds 1000\) | \(\ds = 10^3\) | microinches | ||||||||||
| \(\ds \) | \(=\) | \(\ds 25 \cdotp 4\) | micrometres | \(\quad\) (exact) | ||||||||||
| \(\ds \) | \(=\) | \(\ds 0 \cdotp 0254\) | millimetres | \(\quad\) (exact) | ||||||||||
| \(\ds \) | \(=\) | \(\ds 2 \cdotp 54 \times 10^{-5}\) | metres | \(\quad\) (exact) |
Inch
The inch is an imperial and FPS unit of length.
| \(\ds \) | \(\) | \(\ds 1\) | inch | |||||||||||
| \(\ds \) | \(=\) | \(\ds \dfrac 1 {12}\) | foot | |||||||||||
| \(\ds \) | \(=\) | \(\ds 2 \cdotp 54\) | centimetres | \(\quad\) (exact) | ||||||||||
| \(\ds \) | \(=\) | \(\ds 0 \cdotp 0254\) | metres | \(\quad\) (exact) |
Link
| \(\ds \) | \(\) | \(\ds 1\) | link | |||||||||||
| \(\ds \) | \(=\) | \(\ds 7 \cdotp 92\) | inches | |||||||||||
| \(\ds \) | \(=\) | \(\ds \dfrac 1 {100}\) | chains | |||||||||||
| \(\ds \) | \(=\) | \(\ds 201 \cdotp 168\) | millimetres |
Foot
The foot is the FPS base unit and an imperial unit of length.
| \(\ds \) | \(\) | \(\ds 1\) | foot | |||||||||||
| \(\ds \) | \(=\) | \(\ds 12\) | inches | |||||||||||
| \(\ds \) | \(=\) | \(\ds \dfrac 1 3\) | yard | |||||||||||
| \(\ds \) | \(=\) | \(\ds 30 \cdotp 48\) | centimetres | \(\quad\) (exact) | ||||||||||
| \(\ds \) | \(=\) | \(\ds 0 \cdotp 3048\) | metres | \(\quad\) (exact) |
Yard
| \(\ds \) | \(\) | \(\ds 1\) | yard | |||||||||||
| \(\ds \) | \(=\) | \(\ds 3\) | feet | |||||||||||
| \(\ds \) | \(=\) | \(\ds 36\) | inches | |||||||||||
| \(\ds \) | \(=\) | \(\ds 91 \cdotp 44\) | centimetres | |||||||||||
| \(\ds \) | \(=\) | \(\ds 0 \cdotp 9144\) | metres |
Rod, Pole or Perch
| \(\ds \) | \(\) | \(\ds 1\) | rod, pole or perch | |||||||||||
| \(\ds \) | \(=\) | \(\ds 5 \tfrac 1 2\) | yards | |||||||||||
| \(\ds \) | \(=\) | \(\ds 16 \tfrac 1 2\) | feet | |||||||||||
| \(\ds \) | \(=\) | \(\ds 198\) | inches | |||||||||||
| \(\ds \) | \(=\) | \(\ds 502 \cdotp 92\) | centimetres | |||||||||||
| \(\ds \) | \(=\) | \(\ds 5 \cdotp 0292\) | metres |
Chain
| \(\ds \) | \(\) | \(\ds 1\) | chain | |||||||||||
| \(\ds \) | \(=\) | \(\ds 4\) | rods, poles or perches | |||||||||||
| \(\ds \) | \(=\) | \(\ds 22\) | yards | |||||||||||
| \(\ds \) | \(=\) | \(\ds 66\) | feet | |||||||||||
| \(\ds \) | \(=\) | \(\ds 792\) | inches | |||||||||||
| \(\ds \) | \(=\) | \(\ds 100\) | links | |||||||||||
| \(\ds \) | \(=\) | \(\ds 20 \cdotp 1168\) | metres |
Furlong
| \(\ds \) | \(\) | \(\ds 1\) | furlong | |||||||||||
| \(\ds \) | \(=\) | \(\ds 10\) | chains | |||||||||||
| \(\ds \) | \(=\) | \(\ds 40\) | rods, poles or perches | |||||||||||
| \(\ds \) | \(=\) | \(\ds 220\) | yards | |||||||||||
| \(\ds \) | \(=\) | \(\ds 660\) | feet | |||||||||||
| \(\ds \) | \(=\) | \(\ds 201 \cdotp 168\) | metres |
Mile (International)
The (international) mile is an imperial unit of length.
| \(\ds \) | \(\) | \(\ds 1\) | (international) mile | |||||||||||
| \(\ds \) | \(=\) | \(\ds 8\) | furlongs | |||||||||||
| \(\ds \) | \(=\) | \(\ds 80\) | chains | |||||||||||
| \(\ds \) | \(=\) | \(\ds 320\) | rods, poles or perches | |||||||||||
| \(\ds \) | \(=\) | \(\ds 1760\) | yards | |||||||||||
| \(\ds \) | \(=\) | \(\ds 5280\) | feet | |||||||||||
| \(\ds \) | \(=\) | \(\ds 1609 \cdotp 344\) | metres | \(\quad\) (exact) |
League
| \(\ds \) | \(\) | \(\ds 1\) | league | |||||||||||
| \(\ds \) | \(\) | \(\ds 3\) | (international) miles | |||||||||||
| \(\ds \) | \(=\) | \(\ds 5280\) | yards | |||||||||||
| \(\ds \) | \(\approx\) | \(\ds 2\) | leuca | |||||||||||
| \(\ds \) | \(\approx\) | \(\ds 3000\) | paces | |||||||||||
| \(\ds \) | \(=\) | \(\ds 4828 \cdotp 032\) | metres (exactly) |
Also see
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): British units of length
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): British units of length