| Currency (see note re Relative values) | ||
|---|---|---|
| 1 penny | 0.42p | |
| 12 pence | 1 shilling | 5p |
| 2 shillings | 1 florin | 10p |
| 2 shillings 6 pence | a half-crown | 12.5p |
| 5 shillings | 1 crown | 25p |
| 6 shillings 8 pence | 1 noble | 33.3p |
| 13 shillings 4 pence | 1 mark | 66.7p |
| 20 shillings | 1 pound or sovereign | £1 |
| 21 shillings | 1 guinea | £1:05p |
| Linear Measure | ||
| 1 inch | 2.54 cm | |
| one third of an inch | 1 peppercorn | 0.85 cm |
| 4 inches | 1 hand | 10.16 cm (now 10 cm) |
| 12 inches | 1 foot | 30.48 cm |
| 3 feet | 1 yard | 91.44 cm |
| 45 inches | 1 ell | 114.3 cm |
| 2 yards | 1 fathom | 1.829 m |
| 5½ yards | 1 rod, pole or perch | 5.029 m |
| 22 yards | 1 chain | 20.12 m |
| 10 chains | 1 furlong | 0.2012 km |
| 8 furlongs | 1 mile | 1.609 km |
| 3 miles | 1 league | 4.828 km |
| Square Measure | ||
| 1 square inch | 645.11 sq mm | |
| 144 sq inches | 1 square foot | 0.0929 sq m |
| 9 sq feet | 1 square yard | 0.8361 sq m |
| 30.25 sq yards | 1 square pole | 25.29 sq m |
| 40 sq poles [joke] | 1 rood | 1011.7 sq m |
| 4 roods ie 4840 sq yards | 1 acre | 4047 sq m |
| 640 acres | 1 square mile | 259 ha |
| Cubic Measure | ||
| 1 cubic inch | 16.39 cubic cm | |
| 1728 cubic inches | 1 cubic foot | 28.32 lt |
| 27 cubic feet | 1 cubic yard | 0.764 cubic m |
| Capacity Measure | ||
| 1 fluid ounce | 28.41 cubic cm | |
| 5 fluid oz | 1 gill | 0.1421 lt |
| 4 gills | 1 pint | 0.5683 lt |
| 2 pints | 1 quart | 1.137 lt |
| 4 quarts | 1 gallon | 4.546 lt |
| 2 gallons | 1 peck | 9.092 lt |
| 1 Winchester bushel | 35.24 lt | |
| 1 Imperial bushel | 36.37 lt | |
| 52½ gallons | 1 hogshead | 0.239 cubic m |
| 8 Bushels | 1 quarter | 0.291 cubic m |
| Avoirdupois Weight | ||
| 1 grain | 64.8 mg | |
| 1 dram | 1.772 g | |
| 16 drams | 1 ounce | 28.35 g |
| 16 ounces | 1 pound | 0.4536 kg |
| 14 pounds | 1 stone | 6.350 kg |
| 20 or 21 pounds | 1 score | 9 - 9.5 kg |
| 2 stones | 1 quarter | 12.70 kg |
| 4 quarters | 1 hundredweight | 50.80 kg |
| 20 cwt | 1 ton | 1.016 tonnes |
| Miscellaneous | ||
| Power | 1 horsepower | 745.7 watts |
| Dates | ||
| Twelvth Night Eve | January 5 | |
| Twelvth Night | January 6 | |
| Lady Day | March 25 | |
| St Peter and St Pauls Day | June 29 | |
| St James Day | July 25 | |
| Michaelmas Day | September 29 | |
| Christmas Eve | December 24 | |
| Christmas Day | December 25 | |
| Regnal Years | ||
| William I | 1066-1087 | |
| William II | 1087-1100 | |
| Henry I | 1100-1135 | |
| Stephen | 1135 - | |
| Henry II | 1154-1189 | |
| Richard I | 1189-1199 | |
| John | 1199-1216 | |
| Henry III | 1216-1272 | |
| Edward I | 1272-1307 | |
| Edward II | 1307-1327 | |
| Edward III | 1327-1377 | |
| Richard II | 1377-1399 | |
| Henry IV | 1399-1413 | |
| Henry V | 1413-1422 | |
| Henry VI | 1422-1461 | |
| Edward IV | 1461-1483 | |
| Edward V | 1483 | |
| Richard III | 1483-1485 | |
| Henry VII | 1485-1509 | |
| Henry VIII | 1509-1547 | |
| Edward VI | 1547-1553 | |
| Mary I | 1553-1558 | |
| Elizabeth I | 1558-1603 | |
| James I | 1603-1625 | |
| Charles I | 1625-1649 | |
| Commonwealth | 1649-1653 | |
| Protectorate of Oliver Cromwell | 1653-1658 | |
| Protectorate of Richard Cromwell | 1658-1659 | |
| Charles II | 1660-1685 | |
| James II | 1685-1688 | |
| William and Mary (jointly) | 1689-1694 | |
| William III (sole ruler) | 1694-1702 | |
| Anne | 1702-1714 | |
| George I | 1714-1727 | |
| George II | 1727-1760 | |
| George III | 1760-1820 | |
| George IV | 1820-1830 | |
| William IV | 1830-1837 | |
| Victoria | 1837-1901 | |
| Edward VII | 1901-1910 | |
| George V | 1910-1936 | |
| Edward VIII | 1936 | |
| George VI | 1936-1952 | |
| Elizabeth II | 1952- | |
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| © Alan M Stanier (contact details) |