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

A1 Envelope in millimeters

92 x 130


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 3.6 x 5.1 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.

Frequently Asked Questions:

The size of an A1 Envelope paper is 92 x 130 mm

The size of an A1 Envelope paper in inches is 3.6 x 5.1 in

The half size of an A1 Envelope paper is 46 x 65 mm or 1.8 x 2.55 in

The aspect ratio of an A1 Envelope is 1:1.41

The area of an A1 Envelope paper is 11,960 mm or 18.36 in

The perimeter of an A1 Envelope paper is 444 mm or 17.40 in

The diagonal measurement of A1 Envelope paper is 159.26 mm or 6.24 in

Other US Announcement Envelope Paper Sizes

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