# Square Metre

## Square Metre

Unit of measure of surface that corresponds to the area of a square with 1 metre sides.

The square metre is a unit of measurement that is used to calculate area (the area being the measure of the surface considered).

### Properties

• One square metre is equal to 100 square decimetres and we write: 1 m$$^{2}$$ = 100 dm$$^{2}$$
• One square metre is equal to 10 000 square centimetres and we write: 1 m$$^{2}$$ = 10 000 cm$$^{2}$$
• One square metre is equal to 1 000 000 square millimetres and we write: 1 m$$^{2}$$ = 1 000 000 mm$$^{2}$$

### Notation

The notation for the square metre is « m$$^{2}$$ » which signifies “square metre.”