What Size Is C4 Paper?
C4, part of the C / E / S / X Series under the International Envelope Paper Sizes group, measures 229 x 324 mm, which is 22.9 x 32.4 cm or approximately 9.02 x 12.76 inches. It follows the ISO 269 specification and has an area of approximately 0.0742 m².
C4 Paper Size Dimensions & Conversions
C4 Dimensions in Different Units
| Unit | Width | Height |
|---|---|---|
| Millimeters | 229 mm | 324 mm |
| Centimeters | 22.9 cm | 32.4 cm |
| Inches | 9.02 in | 12.76 in |
| Feet | 0.75 ft | 1.06 ft |
| Meters | 0.229 m | 0.324 m |
| Points | 649 pt | 918 pt |
| Picas | 54.1 pc | 76.5 pc |
What Is C4 Paper Used For?
International Mailing
This ISO 269 envelope size is used across Europe and other ISO-standard regions for mailing paper documents.
Design and Layout
Designers and print professionals use C4 when a layout calls for this specific format.
Reproduction and Scaling
C4 can be scaled up or down to produce related sizes in the same series.
Presentations and Displays
C4 is suitable for boards, handouts, or displays sized to this format.
Archiving and Filing
Printed materials in C4 are stored and filed using standard folders sized for this format.
Digital Reference
C4 dimensions are used as a page-size preset in design and publishing software.