B4 Envelope Paper Size, Dimensions and Format (International Envelope series)

B4 Envelope in millimetres

353 x 250 mm


B4 Envelope-paper-size


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


The B4 Envelope format measures 353 x 250 mm or inches. An B4 Envelope paper fromat has an aspect ratio of 1.41:1. The Area of the B4 Envelope paper size is 88,250 mm² or 136.22 in² with a perimeter of 1,206 mm or 47.40 in. An B4 Envelope format has a diagonal length of 432.56 mm or 17.01 in. The B4 Envelope size belongs to the International Envelope series. In the International Envelope series there are a total of 12 paper sizes.

Other International Envelope Paper Sizes

There are a total of 12 International Envelope Paper Sizes.