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The following symbols are used to denote square inches: square in; sq inches, sq inch, sq in; inches/-2, inch/-2, in/-2; inches^2, inch^2, in^2; inches 2, inch 2, in 2 (also denoted by "2) historic engineering drawings ″ (number with a square & a double apostrophe, both as an exponent) The square inch is a common unit of measurement in the ...
1 square foot = 144 square inches, where 144 = 12 2 = 12 × 12. Similarly: 1 square yard = 9 square feet; 1 square mile = 3,097,600 square yards = 27,878,400 square feet; In addition, conversion factors include: 1 square inch = 6.4516 square centimetres; 1 square foot = 0.092 903 04 square metres; 1 square yard = 0.836 127 36 square metres; 1 ...
hm 2: US spelling: square hectometer: 1.0 hm 2 (2.5 acres) square decametre: dam2 Q23931040: dam 2: US spelling: square dekameter: 1.0 dam 2 (1,100 sq ft) square metre: m2 Q25343: m 2: US spelling: square meter: 1.0 m 2 (11 sq ft) m2 sqft; square decimetre: dm2 Q3331719: dm 2: US spelling: square decimeter: 1.0 dm 2 (16 sq in) square centimetre ...
Copper tubing, however, is measured in nominal size, 1 ⁄ 8 inch less than the outside diameter. The Schedule system is used for standard pipe thicknesses. Alcohol content is frequently given in proof, 2 × percent alcohol by volume; The cord is used for volume of firewood. The square is used to mean 100 square feet in construction.
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As a unit of area, the circular mil can be converted to other units such as square inches or square millimetres. 1 circular mil is approximately equal to: 0.7854 square mils (1 square mil is about 1.273 circular mils) 7.854 × 10 −7 square inches (1 square inch is about 1.273 million circular mils) 5.067 × 10 −10 square metres
The pound per square inch (abbreviation: psi) or, more accurately, pound-force per square inch (symbol: lbf/in 2), [1] is a unit of measurement of pressure or of stress based on avoirdupois units and used primarily in the United States. It is the pressure resulting from a force with magnitude of one pound-force applied to an area of one square ...
The inch version of the slug (equal to 1 lbf⋅s 2 /in, or 12 slugs) has no official name, [3] but is commonly referred to as a blob, [12] slinch (a portmanteau of the words slug and inch), [13] [14] slugette, [15] or snail. [16] It is equivalent to 386.0886 pounds (175.1268 kg) based on standard gravity. [3]