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: sq inches, sq inch, sq in; inches/-2, inch/-2, in/-2; inches^2, inch^2, in^2; inches², inch², in²
Metric
Square kilometre (km²)
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Hectare (ha)
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Are (a)
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Square metre (m²)
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Square decimetre (dm²)
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Square centimetre (cm²)
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Square millimetre (mm²)
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Square micrometre (µm²)
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Square nanometre (nm²)
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British/American
Township
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Square mile
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Homestead
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Acre
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Rood
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Square rod
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Square
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Square yard (yr²)
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Square foot (ft²)
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Square inch (in²)
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Japanese
Tsubo
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Cho
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Tann
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Se
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Other
Metric dunam
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Cypriot dunam
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Iraqi dunam
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Football pitch
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Brazilian
Alqueire paulista
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Alqueire mineiro
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Alqueire baiano
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Alqueire do norte
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