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The former Weights and Measures office in Seven Sisters, London (590 Seven Sisters Road). The imperial system of units, imperial system or imperial units (also known as British Imperial [1] or Exchequer Standards of 1826) is the system of units first defined in the British Weights and Measures Act 1824 and continued to be developed through a series of Weights and Measures Acts and amendments.
pound force-inch: lb.ft: lb⋅ft: pound force-foot ... used to measure the height of horses. One hand is four inches, ... (145 cm; 57 inches) {{convert|14.1|-|14.3 ...
One slug is a mass equal to 32.17405 lb (14.59390 kg) based on standard gravity, the international foot, and the avoirdupois pound. [3] In other words, at the Earth's surface (in standard gravity), an object with a mass of 1 slug weighs approximately 32.17405 lbf or 143.1173 N. [ 4 ] [ 5 ]
Body weight is referred to in kilograms, [30] [31] and baby nappy sizes are specified in grams only. [32] [33] A few parents still convert their baby's hospital-stated birth mass to pounds and ounces. [34] [35] Human height is measured in centimetres. [30] [36] In informal contexts, a person's height may be stated in feet and inches. [37] [38]
This gave rise to the US survey foot, for instance. The avoirdupois units of mass and weight differ for units larger than a pound (lb). The British imperial system uses a stone of 14 lb, a long hundredweight of 112 lb and a long ton of 2,240 lb. The stone is not a measurement of weight used in the US.
The pound-force is the product of one avoirdupois pound (exactly 0.45359237 kg) and the standard acceleration due to gravity, approximately 32.174049 ft/s 2 (9.80665 m/s 2). [ 5 ] [ 6 ] [ 7 ] The standard values of acceleration of the standard gravitational field ( g n ) and the international avoirdupois pound (lb) result in a pound-force equal ...
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The conversion formula is: {} ... 1 inch of mercury = the pressure produced by 1 inch height of mercury = 3,386.39 ... Another term is the foot–pound–second ...