Шаблон:Convert/list of units/area

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system unit code
abbreviation notes sample
default conversion
SI square килоmetre km2 кm2 US spelling: square kilometer
1.0 кm2 (11,000,000 sq ft)
  • km2 sqmi
square гектоmetre hm2 гm2 US spelling: square hectometer
1.0 гm2 (110,000 sq ft)
square декаmetre dam2 даm2 US spelling: square dekameter
1.0 даm2 (1,100 sq ft)
square metre m2 m2 US spelling: square meter
1.0 m2 (11 sq ft)
  • m2 sqft
square детсиmetre dm2 дm2 US spelling: square decimeter
1.0 дm2 (0.11 sq ft)
square сантиmetre cm2 сm2 US spelling: square centimeter
1.0 сm2 (0.0011 sq ft)
  • cm2 sqin
square миллиmetre mm2 мm2 US spelling: square millimeter
1.0 мm2 (1.1×10−5 sq ft)
  • mm2 sqin
non-SI metric hectare ha ha equivalent to one square hectometre 1.0 ha (2.5 acres)
US customary
square mile sqmi sq mi 1.0 sq mi (2.6 кm2)
  • sqmi km2
acre acre (none) 1.0 acre (0.40 ha)
square yard sqyd sq yd 1.0 sq yd (0.84 m2)
square foot sqft
(ft2, sqfoot, foot2)
sq ft long code "sqfoot (foot2)" outputs square foot (and never feet) 1.0 sq ft (0.093 m2)
  • sqft m2
square inch sqin sq in 1.0 sq in (6.5 сm2)
  • sqin cm2
  • sqin mm2
Maritime units square nautical mile sqnmi (nmi2) sq nmi 1.0 sq nmi (3.4 кm2; 1.3 sq mi)
Middle Eastern dunam dunam (metric dunam) (none) The spellings dunum, donum and dönüm are also acceptable variants. Just replace dunam with the desired spelling in the code. The spelling dönüm also results from using donum diaeresis or donum dots. 1.0 dunam (0.0010 кm2; 0.00039 sq mi)
Cypriot dunam Cypriot dunam[convert: unknown unit] 1.0 Cypriot dunam[convert: unknown unit]
Iraqi dunam Iraqi dunam[convert: unknown unit] 1.0 Iraqi dunam[convert: unknown unit]
old dunam old dunam[convert: unknown unit] 1.0 old dunam[convert: unknown unit]
Japanese tsubo tsubo (none) 1.0 tsubo (3.3 m2)
Korean pyeong pyeong (none) 1.0 pyeong (3.3 m2)
Spanish cuerda cda cda Spanish acre 1 cuerda (0.39 ha; 0.97 acres)