C3 Envelope Paper Size, Dimensions and Format (International Envelope series)
C3 Envelope
18 x 12.8
Format
Measurements
| Aspect ratio | 1.41:1 |
|---|---|
| Perimeter (P) | 61.60 in |
| Diagonal (d) | 22.09 in |
| Area (A) | 230.40 in² |
Information
The C3 Envelope format measures 458 x 324 mm or 18 x 12.8 inches. An C3 Envelope paper fromat has an aspect ratio of 1.41:1. The Area of the C3 Envelope paper size is 148,392 mm² or 230.40 in² with a perimeter of 1,564 mm or 61.60 in. An C3 Envelope format has a diagonal length of 561.02 mm or 22.09 in. The C3 Envelope size belongs to the International Envelope series. In the International Envelope series there are a total of 12 paper sizes.
Frequently Asked Questions
The size of an C3 Envelope paper is 458 x 324 mm
The size of an C3 Envelope paper in inches is 18 x 12.8 in
The half size of an C3 Envelope paper is 229 x 162 mm or 9 x 6.4 in
The aspect ratio of an C3 Envelope is 1.41:1
The area of an C3 Envelope paper is 148,392 mm or 230.40 in
The perimeter of an C3 Envelope paper is 1,564 mm or 61.60 in
The diagonal measurement of C3 Envelope paper is 561.02 mm or 22.09 in
Other International Envelope Paper Sizes →
There are a total of 12 International Envelope Paper Sizes.