British Imperial Units of Measurement - Free Download
Imperial units of length, area, volume and mass as defined in the UK, with their metric equivalents. Contains 34 records. Download in Excel, CSV, PDF formats.
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- Contains 34 records / 8 fields
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- Data sourced from: https://en.wikipedia.org/wiki/Imperial_units
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| Quantity | Subgroup | Unit | Symbols | Relative To Previous | Metric Value | Metric Unit | Notes |
|---|---|---|---|---|---|---|---|
| Length | twip | 0.000017638 | m | typographic measure | |||
| Length | thou | th | 1.44 twip | 0.0000254 | m | Abbreviation of "thousandth of an inch". Also known as mil . | |
| Length | barleycorn | Bc | 333 + 1⁄3 th | 0.00846 | m | 1⁄3 in | |
| Length | inch | in ( ″ ) | 3 Bc | 0.0254 | m | 1 metre ≡ 39 47⁄127 inches | |
| Length | hand | hh | 4 in | 0.1016 | m | Used to measure the height of horses | |
| Length | foot | ft ( ′ ) | 3 h h | 0.3048 | m | 12 in | |
| Length | yard | yd | 3 ft | 0.9144 | m | Defined as exactly 0.9144 m by the international yard and pound agreement of 1959 | |
| Length | rod | rd | 5 + 1⁄2 yd | 5.0292 | m | The rod is also called pole or perch | |
| Length | furlong | fur | 40 rd | 201.168 | m | 220 yd | |
| Length | mile | mi | 8 furlongs | 1609.344 | m | 1760 yd or 80 chains | |
| Length | league | lea | 3 miles | 4828.032 | m | ||
| Length | Maritime units | fathom | ftm | 2.02667 yd | 1.852 | m | The British Admiralty in practice used a fathom of 6 ft . This was despite its being 1⁄1000 of a nautical mile (i.e. 6.08 ft ) until the adoption of the international nautical mile. |
| Length | Maritime units | cable | 100 fathoms | 185.2 | m | One tenth of a nautical mile. Equal to 100 fathoms under the strict definition. | |
| Length | Maritime units | nautical mile | nmi | 10 cables | 1852 | m | Used for measuring distances at sea (and also in aviation) and approximately equal to one arc minute of a great circle . Until the adoption of the international definition of 1852 m in 1970, the Briti… |
| Length | Gunter's survey units (17th century onwards) | link | 1⁄1000 fur | 0.201168 | m | Decimalization of furlong and acre to facilitate surveying calculations | |
| Length | Gunter's survey units (17th century onwards) | chain | ch | 100 links | 20.1168 | m | 4 rods or 1⁄10 of a furlong. The distance between the two wickets on a cricket pitch . |
| Area | perch * | 25.29285264 | m² | ||||
| Area | rood | 40 perches | 1011.7141056 | m² | |||
| Area | acre | 4 roods | 4046.8564224 | m² | |||
| Area | square mile | sq mi | 640 acres | 2589988.110336 | m² |