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

B4 Envelope

353 x 250


B4 Envelope-paper-size


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


The B4 Envelope format measures 353 x 250 mm or 13.9 x 9.8 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.

Frequently Asked Questions

The size of an B4 Envelope paper is 353 x 250 mm

The size of an B4 Envelope paper in inches is 13.9 x 9.8 in

The half size of an B4 Envelope paper is 176.5 x 125 mm or 6.95 x 4.9 in

The aspect ratio of an B4 Envelope is 1.41:1

The area of an B4 Envelope paper is 88,250 mm or 136.22 in

The perimeter of an B4 Envelope paper is 1,206 mm or 47.40 in

The diagonal measurement of B4 Envelope paper is 432.56 mm or 17.01 in

Other International Envelope Paper Sizes →

There are a total of 12 International Envelope Paper Sizes.