Površina i zapremina

Jedinice površine idu na kvadrat: $1\,\text{m}^2 = 100 \cdot 100 = 10000\,\text{cm}^2$, $1\,\text{cm}^2 = 100\,\text{mm}^2$.

Za poljoprivredne površine: $1\,\text{ar} = 100\,\text{m}^2$, $1\,\text{ha} = 100\,\text{ari} = 10000\,\text{m}^2$.

Jedinice zapremine idu na treći stepen: $1\,\text{m}^3 = 1000000\,\text{cm}^3$, a $1\,\text{l} = 1\,\text{dm}^3 = 1000\,\text{cm}^3$.