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‘square metre’
(international spelling as used by the ‘International Bureau of Weights and Measures’)
‘square meter’
(american spelling)
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-as of [28 SEPTEMBER 2024]–
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-the [square meter] is the unit of ‘area’ in the ‘International System of Units’ (SI) with symbol m2-
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It is the area of a square with sides one metre in length.
Adding and subtracting SI prefixes creates multiples and submultiples
however, as the unit is exponentiated, the quantities grow exponentially by the corresponding power of 10
For example, 1 kilometre is 103 (one thousand) times the length of 1 metre, but 1 square kilometre is (103)2 (106, one million) times the area of 1 square metre, and 1 cubic kilometre is (103)3 (109, one billion) cubic metres.
SI prefixes applied[edit]
Square Meter Unit Conversion Visual Aid
The square metre may be used with all SI prefixes used with the metre.
Multiplication Name Symbol Multiplication Name Symbol
100 square metre (centiare) m2 100 square metre (centiare) m2
102 square decametre (are) dam2 10−2 square decimetre dm2
104 square hectometre (hectare) hm2 10−4 square centimetre cm2
106 square kilometre km2 10−6 square millimetre mm2
1012 square megametre Mm2 10−12 square micrometre μm2
1018 square gigametre Gm2 10−18 square nanometre nm2
1024 square terametre Tm2 10−24 square picometre pm2
1030 square petametre Pm2 10−30 square femtometre fm2
1036 square exametre Em2 10−36 square attometre am2
1042 square zettametre Zm2 10−42 square zeptometre zm2
1048 square yottametre Ym2 10−48 square yoctometre ym2
Unicode characters[edit]
Unicode has several characters used to represent metric area units, but these are for compatibility with East Asian character encodings and are not meant to be used in new documents
U+33A1 ㎡ SQUARE M SQUARED)
U+33A2 ㎢ SQUARE KM SQUARED
U+3378 ㍸ SQUARE DM SQUARED
U+33A0 ㎠ SQUARE CM SQUARED
U+339F ㎟ SQUARE MM SQUARED
Instead, the Unicode superscript U+00B2 ² can be used, as in m².
Conversions[edit]
One square metre is equal to:
0.000001 square kilometre (km2)
10000 square centimetres (cm2)
0.0001 hectares (ha)
0.001 decares (daa)
0.01 ares (a)
0.1 deciares (da)
1 centiare (ca)
0.000247105381 acres
0.0247105381 cents
1.195990 square yards
10.763911 square feet
1550.0031 square inches
Examples[edit]
One square meter can stand up to 5 people at the same time.[3]
See also[edit]
Conversion of units § Area
Orders of magnitude (area)
SI
SI prefix
Notes[edit]
^ David R. Lide, ed. (2010), “INTERNATIONAL SYSTEM OF UNITS”, CRC Handbook of Chemistry and Physics (90th ed.)
^ Unicode Consortium (2019). “The Unicode Standard 12.0 – CJK Compatibility ❰ Range: 3300—33FF ❱” (PDF). Unicode.org. Retrieved May 24, 2019.
^ “Standing Crowd Density | Prof. Dr. G. Keith Still”. www.gkstill.com. Retrieved 2022-12-01.
External links[edit]
BIPM (SI maintenance agency) (home page)
BIPM brochure (SI reference)
en.wikipedia.org /wiki/Square_metre
Square metre
Contributors to Wikimedia projects3-4 minutes 8/21/2002
Square metre
Unit system SI
Unit of area
Symbol m2
Comparison of 1 square metre with some Imperial and metric units of area
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