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acre
A unit of area defined as 43,560 square feet and equivalent to 4.046873x103 square meters.

are
A unit of area defined as exactly 100 square meters.

Symbol: a.

area
A class of derived unit constructed by multiplying together two units of length.

b
Symbol for the measurement unit barn.

barn
A unit of reaction probability expressed as an area and defined as exactly 10-28 square meters, or commonly as 10-24 square centimeters.

Symbol: b.

circular mil
A unit of area equivalent to 5.067075x10-10 square meters.

darcy
A unit of area equivalent to 9.869233x10-13 square meters.

ft2
A symbol for square foot.

ha
A symbol for the measurement unit hectare.

hectare
A unit of area defined as exactly 1x104 square meters.

Symbol: ha.

in2
A symbol for square inch.

m2
A symbol for square meter.

mb
A symbol for millibarn.

mi2
Symbol for the measurement unit square mile.

millibarn
A unit of reaction probability which is expressed as an area and is equivalent to 10-3 barn.

Symbol: mb.

quarteron
A unit of area defined as 1.76 square meters.

roll
For wall paper, it is a unit of area defined as 30 square feet and equivalent to 2.787 square meters.

square foot
A unit of area defined as 144 square inches and equivalent to 9.290304x10-2 square meters.

Symbol: ft2.

square inch
A unit of area defined as exactly 6.4516x10-4 square meters.

Symbol: in2.

square meter
The SI standard unit of area.

Symbol: m2.

square mile
A unit of area defined as 640 acres and equivalent to 2.589988x106 square meters.

Symbol: mi2.

square pes
A unit of area equivalent to 8.74126-2 square meters.

square Scottish ell
A unit of area equivalent to 8.8322x10-1 square meters.

square vara
A unit of area equivalent to 7.16883x10-1 square meters.

square yard
A unit of area defined as 1,296 square inches and equivalent to 8.361274x10-1 square meters.

Symbol: yd2.

yd2
Symbol for the measurement unit square yard.

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