What Size Is C3 Paper?
C3, part of the C / E / S / X Series under the International Envelope Paper Sizes group, measures 324 x 458 mm, which is 32.4 x 45.8 cm or approximately 12.76 x 18.03 inches. It follows the ISO 269 specification and has an area of approximately 0.1484 m².
C3 Paper Size Dimensions & Conversions
C3 Dimensions in Different Units
| Unit | Width | Height |
|---|---|---|
| Millimeters | 324 mm | 458 mm |
| Centimeters | 32.4 cm | 45.8 cm |
| Inches | 12.76 in | 18.03 in |
| Feet | 1.06 ft | 1.5 ft |
| Meters | 0.324 m | 0.458 m |
| Points | 918 pt | 1298 pt |
| Picas | 76.5 pc | 108.2 pc |
What Is C3 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 C3 when a layout calls for this specific format.
Reproduction and Scaling
C3 can be scaled up or down to produce related sizes in the same series.
Presentations and Displays
C3 is suitable for boards, handouts, or displays sized to this format.
Archiving and Filing
Printed materials in C3 are stored and filed using standard folders sized for this format.
Digital Reference
C3 dimensions are used as a page-size preset in design and publishing software.