12.5 Envelope Paper Size, Dimensions and Format (US Catalog Envelope series)
12.5 Envelope in millimetres
|Area (A)||76,638 mm²|
|Perimeter (P)||1,118 mm|
|Diagonal (d)||399.01 mm|
The 12.5 Envelope format measures 318 x 241 mm or inches. An 12.5 Envelope paper fromat has an aspect ratio of 1.32:1. The Area of the 12.5 Envelope paper size is 76,638 mm² or 118.75 in² with a perimeter of 1,118 mm or 44 in. An 12.5 Envelope format has a diagonal length of 399.01 mm or 15.70 in. The 12.5 Envelope size belongs to the US Catalog Envelope series. In the US Catalog Envelope series there are a total of 12 paper sizes.
There are a total of 12 US Catalog Envelope Paper Sizes.