B4 Paper Size, Dimensions and Format (B series)

B4 in millimetres

250 x 353 mm




Aspect ratio 1:1.41
Area (A) 88,250 mm²
Perimeter (P) 1,206 mm
Diagonal (d) 432.56 mm


The B4 format measures 250 x 353 mm or inches. An B4 paper fromat has an aspect ratio of 1:1.41. The Area of the B4 paper size is 88,250 mm² or 136.22 in² with a perimeter of 1,206 mm or 47.40 in. An B4 format has a diagonal length of 432.56 mm or 17.01 in. The B4 size belongs to the B series. In the B series there are a total of 17 paper sizes.

Other B Paper Sizes

There are a total of 17 B Paper Sizes.