What Size Is X5 Paper?
X5, part of the C / E / S / X Series under the International Envelope Paper Sizes group, measures 105 x 216 mm, which is 10.5 x 21.6 cm or approximately 4.13 x 8.5 inches. It follows the ISO 269 specification and has an area of approximately 0.0227 m².
X5 Paper Size Dimensions & Conversions
X5 Dimensions in Different Units
| Unit | Width | Height |
|---|---|---|
| Millimeters | 105 mm | 216 mm |
| Centimeters | 10.5 cm | 21.6 cm |
| Inches | 4.13 in | 8.5 in |
| Feet | 0.34 ft | 0.71 ft |
| Meters | 0.105 m | 0.216 m |
| Points | 298 pt | 612 pt |
| Picas | 24.8 pc | 51.0 pc |
What Is X5 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 X5 when a layout calls for this specific format.
Reproduction and Scaling
X5 can be scaled up or down to produce related sizes in the same series.
Presentations and Displays
X5 is suitable for boards, handouts, or displays sized to this format.
Archiving and Filing
Printed materials in X5 are stored and filed using standard folders sized for this format.
Digital Reference
X5 dimensions are used as a page-size preset in design and publishing software.