10.5 Envelope Paper Size, Dimensions and Format (US Catalog Envelope series)
10.5 Envelope in millimetres
|Area (A)||69,845 mm²|
|Perimeter (P)||1,068 mm|
|Diagonal (d)||381.40 mm|
The 10.5 Envelope format measures 305 x 229 mm or inches. An 10.5 Envelope paper fromat has an aspect ratio of 1.33:1. The Area of the 10.5 Envelope paper size is 69,845 mm² or 108 in² with a perimeter of 1,068 mm or 42 in. An 10.5 Envelope format has a diagonal length of 381.40 mm or 15 in. The 10.5 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.