noun
floor area ratio; FAR; floor space index
Technical term in architecture and urban planning: the ratio of a building's total floor area to the area of the plot of land on which it is built. Used in Japanese building regulations.
この地域の容積率は200%に制限されている。
The floor area ratio in this area is limited to 200%.
容積率を計
To calculate the floor area ratio, divide the total floor area by the site area.