C10
28 mm
40 mm
What Size Is C10 Paper?
C10, part of the C Series under the C Envelope Paper Sizes group, measures 28 x 40 mm, which is 2.8 x 4.0 cm or approximately 1.1 x 1.57 inches. It follows the ISO 269 specification and has an area of approximately 11.2 cm².
C10 Paper Size Dimensions & Conversions
Paper Series
C Series
Standard
ISO 269
Width
28 mm
Height
40 mm
Area
11.2 cm²
Aspect Ratio
1:1.429
Previous Size
C9
Next Size
C10 Dimensions in Different Units
| Unit | Width | Height |
|---|---|---|
| Millimeters | 28 mm | 40 mm |
| Centimeters | 2.8 cm | 4.0 cm |
| Inches | 1.1 in | 1.57 in |
| Feet | 0.09 ft | 0.13 ft |
| Meters | 0.028 m | 0.04 m |
| Points | 79 pt | 113 pt |
| Picas | 6.6 pc | 9.4 pc |
What Is C10 Paper Used For?
Mailing Documents
This C-series envelope size is designed to hold its matching A-series paper size without folding.
Design and Layout
Designers and print professionals use C10 when a layout calls for this specific format.
Reproduction and Scaling
C10 can be scaled up or down to produce related sizes in the same series.
Presentations and Displays
C10 is suitable for boards, handouts, or displays sized to this format.
Archiving and Filing
Printed materials in C10 are stored and filed using standard folders sized for this format.
Digital Reference
C10 dimensions are used as a page-size preset in design and publishing software.
Related C Series Sizes
Frequently Asked Questions
What is C10 size in inches?
C10 measures approximately 1.1 x 1.57 inches.
What is C10 size in centimeters?
C10 measures 2.8 x 4.0 cm.
What is C10 size in millimeters?
C10 measures 28 x 40 mm.
What is C10 size in pixels?
At 300 DPI, C10 is approximately 330 x 471 pixels.
What series does C10 belong to?
C10 is part of the C Envelope Paper Sizes format group.