Brief Paper Size, Dimensions and Format (Imperial series)

Brief in millimetres

343 x 406 mm




Aspect ratio 1:1.18
Area (A) 139,258 mm²
Perimeter (P) 1,498 mm
Diagonal (d) 531.49 mm


The Brief format measures 343 x 406 mm or inches. An Brief paper fromat has an aspect ratio of 1:1.18. The Area of the Brief paper size is 139,258 mm² or 216 in² with a perimeter of 1,498 mm or 59 in. An Brief format has a diagonal length of 531.49 mm or 20.93 in. The Brief size belongs to the Imperial series. In the Imperial series there are a total of 31 paper sizes.

Other Imperial Paper Sizes

There are a total of 31 Imperial Paper Sizes.