Template:Convert/list of units/area/short list

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Area
(Full list)
system unit code
(alternative)
abbreviation notes conversion factor/m² combinations
SI square kilometre km2 km2 US spelling: square kilometer
1,000,000
  • km2 sqmi
square metre m2 m2 US spelling: square meter
1
  • m2 sqft
square centimetre cm2 cm² US spelling: square centimeter
0.0001
  • cm2 sqin
square millimetre mm2 mm² US spelling: square millimeter
0.000001
  • mm2 sqin
non-SI metric hectare ha ha 10,000
Imperial
&
US customary
square mile sqmi sq mi 2,589,988.110336
  • sqmi km2
acre acre 4,046.856422
square yard sqyd sq yd 0.83612736
square foot sqft
(sqfoot)
sq ft The sqfoot code will produce square foot as the plural form. 0.09290304
  • sqft m2 (sqfoot m2)
square inch sqin sq in 0.00064516
  • sqin cm2
Other square nautical mile sqnmi sq nmi 3,429,904
dunam dunam For alternative spellings and definitions see the full list 1,000
tsubo tsubo (400/121)
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