What Size Is No. 9 Paper?
No. 9, part of the Numbered / Announcement under the US Envelope Paper Sizes group, measures 225 x 98 mm, which is 22.5 x 9.8 cm or approximately 8.86 x 3.86 inches. It follows the US Envelope Standard specification and has an area of approximately 0.0221 m².
No. 9 Paper Size Dimensions & Conversions
No. 9 Dimensions in Different Units
| Unit | Width | Height |
|---|---|---|
| Millimeters | 225 mm | 98 mm |
| Centimeters | 22.5 cm | 9.8 cm |
| Inches | 8.86 in | 3.86 in |
| Feet | 0.74 ft | 0.32 ft |
| Meters | 0.225 m | 0.098 m |
| Points | 638 pt | 278 pt |
| Picas | 53.1 pc | 23.1 pc |
What Is No. 9 Paper Used For?
Mailing Correspondence
This envelope size is used for business mail, invitations, or announcements depending on its category.
Design and Layout
Designers and print professionals use No. 9 when a layout calls for this specific format.
Reproduction and Scaling
No. 9 can be scaled up or down to produce related sizes in the same series.
Presentations and Displays
No. 9 is suitable for boards, handouts, or displays sized to this format.
Archiving and Filing
Printed materials in No. 9 are stored and filed using standard folders sized for this format.
Digital Reference
No. 9 dimensions are used as a page-size preset in design and publishing software.