Square metre
The square metre or square meter is the SI derived unit of area with symbol m2.
Adding and subtracting SI prefixes creates multiples and submultiples; however, as the unit is exponentiated, the quantities grow geometrically by the corresponding power of 10. For example, 1 kilometre is 103 times the length of 1 metre, but 1 square kilometre is 2 times the area of 1 square metre, and 1 cubic kilometre is 3 cubic metres.SI prefixes applied
The square metre may be used with all SI prefixes used with the metre.
| Multiplication | Name | Symbol | | Multiplication | Name | Symbol |
| 100 | square metre | m2 | | 100 | square metre | m2 |
| 102 | square decametre | dam2 | | 10−2 | square decimetre | dm2 |
| 104 | square hectometre | 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
Conversions
One square metre is equal to:
