A1 Envelope Paper Size, Dimensions and Format (US Announcement Envelope series)

A1 Envelope in millimetres

92 x 130 mm


A1 Envelope-paper-size


Aspect ratio 1:1.41
Area (A) 11,960 mm²
Perimeter (P) 444 mm
Diagonal (d) 159.26 mm


The A1 Envelope format measures 92 x 130 mm or inches. An A1 Envelope paper fromat has an aspect ratio of 1:1.41. The Area of the A1 Envelope paper size is 11,960 mm² or 18.36 in² with a perimeter of 444 mm or 17.40 in. An A1 Envelope format has a diagonal length of 159.26 mm or 6.24 in. The A1 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.