A4 Envelope Paper Size, Dimensions and Format (US Announcement Envelope series)

A4 Envelope in millimetres

159 x 108 mm


A4 Envelope-paper-size


Aspect ratio 1.47:1
Area (A) 17,172 mm²
Perimeter (P) 534 mm
Diagonal (d) 192.21 mm


The A4 Envelope format measures 159 x 108 mm or inches. An A4 Envelope paper fromat has an aspect ratio of 1.47:1. The Area of the A4 Envelope paper size is 17,172 mm² or 27.09 in² with a perimeter of 534 mm or 21.20 in. An A4 Envelope format has a diagonal length of 192.21 mm or 7.63 in. The A4 Envelope size belongs to the US Announcement Envelope series. In the US Announcement Envelope series there are a total of 9 paper sizes.

Other US Announcement Envelope Paper Sizes

There are a total of 9 US Announcement Envelope Paper Sizes.