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# Square inch

A square inch (plural: square inches) is a unit of area, equal to the area of a square with sides of one inch. 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
*inches², inch², in²

The square inch is a common unit of measurement in the United States and the United Kingdom.

Equivalence with other units of area

1 square inch (assuming an international inch) is equal to: (the overbars indicate repeating decimals)
* square feet (1 square foot is equal to 144 square inches)
* square yards (1 square yard is equal to 1,296 square inches)
* square centimetres (1 square centimetre is equal to nowrap|0.155 000 310&hellip; square inches)
* square metres (1 square metre is equal to nowrap|1,550.003 100&hellip; square inches)

* 1 E-1 m² for a comparison with other areas
* Cubic inch
* Orders of magnitude (area)
* Conversion of units
* Area (geometry)
* Square (algebra), square root

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### Look at other dictionaries:

• square inch — noun a unit of area equal to one inch by one inch square • Syn: ↑sq in • Hypernyms: ↑area unit, ↑square measure * * * noun : a unit of area equal to a square one inch long on each side see measure table * * * a unit of area measurement equal to a …   Useful english dictionary

• Square inch — Ein Quadratzoll ist ein Quadrat mit einem Zoll Kantenlänge. Das englische Zoll (inch) ist exakt 2,54 Zentimeter lang, demnach hat ein Quadratzoll (square inch) eine Fläche von exakt 6,4516 cm². 1 square foot = 144 square inch 1 square yard = 9… …   Deutsch Wikipedia

• square inch — a unit of area measurement equal to a square measuring one inch on each side; 6.452 square centimeters. Abbr.: in2, sq. in. * * * …   Universalium

• square inch — noun A unit of area equal to the area of a square the sides of which are each one inch long. Syn: sq in, sq. in …   Wiktionary

• square inch — unit for measuring area, area of a square which has the length of each side equal to one inch …   English contemporary dictionary

• square inch — (in2 or sq in)    a traditional unit of area. 1 in2 equals exactly 6.4516 cm2 or 645.16 mm2 …   Dictionary of units of measurement

• Square inch analysis — or squinch guides many marketing decisions for mail order companies. Such analysis consists of counting how many square inches each product takes on a catalog page. The cost per square inch determined by production, printing, postage and name… …   Wikipedia

• square inch of water — A stream of water with a cross section area of one square inch measured at right angles with its flow, taking account of the velocity of whatever head is acting upon it …   Ballentine's law dictionary

• Pound per square inch — Einheit Norm Angloamerikanisches Maßsystem Einheitenname Pound force per square inch Einheitenzeichen psi, lb.p.sq.in. (psia, psig) Dimensionsname Druck Dimensionssymbol …   Deutsch Wikipedia

• Pounds-force per square inch — Einheit Norm Angloamerikanisches Maßsystem Einheitenname Pound force per square inch Einheitenzeichen psi, lb.p.sq.in. (psia, psig) Dimensionsname Druck Dimensionssymbol …   Deutsch Wikipedia