Metric Units Imperial and US Units
millimeter2 [mm2] square inch [in2]
centimeter2 [cm2] square foot [ft2]
decimeter2 [dm2] square yard [yd2]
meter2 [m2] square mile [mi2]
kilometer2 [km2] acre (intl)
are [a] acre (US)
hectare [ha]

Tip: Do not use any commas, only a decimal point (.) if needed.
Square Foot Conversion Example
If you know the area in square meters and you want to know how much it is in square footage, simply type the quantity of square meters in the grey box labeled 'meter2'. Now look in the square footage edit box labeled 'square foot' and you will see the square footage, and vise versa.

Fundamental unit of area in the International System Of Units is:
square meter [m2].
Unitin square meters
Metric Unit System
square milimeter [mm2]0.000001
square centimeter [cm2]0.0001
square decimeter [dm2]0.01
square meter [m2]1
square kilometer [km2]1000000
are [ar]100
hectare [ha]10000
Imperial and US Unit System
square inch [in2]0.00064513460025
square foot [ft2]0.09290304
square yard [jard2]0.83612736
square mile [mi2]2589886.1433037824
international acre4046.8564224
US acre4046.87261

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