Cubic inch

• The following abbreviations have been used to denote the cubic inch: cubic in, cu inch, cu in, cui, cu. in. • The IEEE standard symbol is: in3 • In internal combustion engines, the following abbreviations are used to denote cubic inch displacement: c.i.d., cid, CID, c.i., ci ==Equivalence with other units of volume==

One cubic inch is equal to: • Exactly cubic feet • Exactly US gallon • Exactly US liquid quart • Exactly US liquid pint • Exactly US gill • Exactly US fluid ounce • Exactly US tablespoons • Exactly US teaspoons • Exactly US fluid drams • Exactly US bushel • Exactly US dry quart • Exactly US dry pint • ≈0.00360465 imperial gallons • ≈0.0144186 imperial quarts • ≈0.0288372 imperial pints • ≈0.1153488 imperial gills • ≈0.576744 imperial fluid ounces • ≈1.153488 imperial tablespoons • ≈4.613952 imperial fluid drams • ≈0.00045058 imperial bushels • Exactly barrel of crude oil • Exactly ==Uses of the cubic inch==

Electrical box volume The cubic inch was established decades ago in the National Electrical Code as the conventional unit in North America for measuring the volume of electrical boxes. Because of the extensive export of electrical equipment to other countries, some usage of the non-SI unit can be found outside North America. Engine displacement North America The cubic inch was formerly used by the automotive industry and aircraft industry in North America (through the early 1980s) to express the nominal engine displacement for the engines of new automobiles, trucks, aircraft, etc. The cubic inch is still used for this purpose in classic car collecting. The auto industry now uses liters for this purpose, while reciprocating engines used in commercial aircraft often have model numbers based on the cubic inch displacement. The fifth generation Ford Mustang has a Boss 302 version that reflects this heritage - with a five-liter (302 cubic inch) engine similar to the original Boss. Chevrolet has also revived this usage on its 427 Corvette. Dodge has a "Challenger 392" (a conversion from its 6.4 liter V8 engine). ==See also==