British Imperial Conversions

Unit Abbreviation Measurement Metric Equivalent
Length      
1 inch in 25.4 millimeters
1 foot ft 12 inches 0.3048 meter
1 yard yd 3 feet 0.9144 meter
1 furlong 220 yards 201.2 meters
1 mile mi 1760 yards 1609.3 meters
Area      
1 square inch sq in or in* 645.16 square millimeters
1 square foot sq ft or ft* 144 square inches 0.093 square meter
1 square yard sq yd or yd* 9 square feet 0.8361 square meter
1 acre 4840 square yards 4047 square meters
1 square mile sq mi or mi* 640 acres 2.590 square kilometers
Avoirdupois weight (mass)      
1 ounce oz or oz avdp 28,350 grams
1 pound lb or lb avdp or # 16 ounces 0.454 kilogram
1 stone 14 pounds 6.350 kilograms
1 short hundredweight short cwt 100 pounds 45.359 kilograms
1 long hundredweight long cwt 112 pounds 50.802 kilograms
1 short ton 2000 pounds 0.9072 tonne
1 long ton 2240 pounds 1.016 tonnes
Capacity: British Imperial liquid and dry measure *    
1 UK fluid ounce fl oz 28.412 cubic centimeters
1 UK pint pt 20 UK fluid ounces 568.26 cubic centimeters
1 UK quart qt 2 UK pints 1.137 cubic decimeters
1 UK gallon gal 4 UK quarts 4.546 cubic decimeters
1 UK bushel bu 8 UK gallons 36.369 cubic decimeters
       
Capacity: US liquid measure      
1 fluid ounce fl oz 1.0408 UK fluid ounces 29.6 cubic centimeters
1 pint
(16 fluid ounces)
pt 0.8327 UK pint 0.4732 cubic decimeter
       
1 gallon (8 pints) gal 0.8327 UK gallon 3.7853 cubic decimeters
       
Capacity: US dry measure      
1 pint pt 0.9689 UK pint 0.5506 cubic decimeter
1 bushel bu 0.9689 UK bushel 35.239 cubic decimeters

* 1 liter = 1 cubic decimeter = 10-3 cubic meters