# Unit of Measurement of Surface Area

## Unit of Measurement of Surface Area

The base unit to measure surface area is the square metre.

The units to measure surface are units of area, meaning units of measurement for a two-dimensional geometric object.

### 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$$^{2}$$
• One square kilometre is equal to 1 000 000 square metres and we write: 1 km$$^{2}$$ = 1 000 000 m$$^{2}$$