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Area measures conversion

Two common scales of area measuring persist to exist and compete. The Metric (S.I.) system and the U.S.A. and Imperial system.



Area measure conversion tool

Type the known value in the appropriate box,
click the button next to that box,
and the other values will be calculated.

SI (Metric)

  Square kilometer (km2)  

hectare (ha)
Used for agricultural areas

are (a)
Rarely used

Square meter (m2)

  Square decimeter (dm2)  
Almost never used

  Square centimeter (cm2)  

  Square millimeter (mm2)  

U.S.and Imperial Area Measures

Mile square (sq mi)

Acre

Square rod (sq rd)

Square yard (sq yd)

Square foot (sq ft)

Square inch (sq in)

(use a dot ( . ) as a decimal point to convert non-integer values)


Some Important Area Conversion Factors

To convert from to multiply by
square foot (sq ft) square meter (sq m) 0.09290304
square inch (sq in) square meter (sq m) 0.00064516
square yard (sq yd) square meter (sq m) 0.83612736
acre (ac) hectare (ha) 0.4047





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