C8
Dimensions: 57 × 81 mm (2.24 × 3.19 in)
C8 measures 57 × 81 mm (2.24 × 3.19 in) and belongs to the C Envelope Paper Sizes standard. It is commonly used for mailing small cards and slips.
What size is C8 paper?
An C8 piece of paper measures 57 × 81 mm or 2.24 × 3.19 inches. It is part of the C Envelope Paper Sizes standard.
| Units | Width × Height |
|---|---|
| Metric millimeters (mm) | 57 × 81 mm |
| Metric centimeters (cm) | 5.70 × 8.10 cm |
| Metric meters (m) | 0.057 × 0.081 m |
| Imperial inches (in) | 2.24 × 3.19 in |
| Typographic points (1/72 inch) (pt) | 161.57 × 229.61 pt |
| Typographic picas (1/6 inch) (pc) | 13.46 × 19.13 pc |
| Pixels at 300 DPI (px) | 673 × 957 px |
C8 is part of the c envelope paper sizes standard. The C series envelope sizes are defined in ISO 269. C envelopes are designed to hold A series paper: a C4 envelope holds an A4 sheet, a C5 holds A5 or a folded A4, etc.
Quick facts
- Size (mm)57 × 81 mm
- Size (inches)2.24 × 3.19 in
- Aspect ratio1 : 1.42
- StandardC Envelope Paper Sizes
- Common useDocuments, letters, forms
Compare C8 with other sizes
Typical uses for C8
C8 measures 57 × 81 mm (2.24 × 3.19 in) and is used for the following tasks.
- Mailing small cards and slips
- Tickets and vouchers
- Miniature notes
- Sample sachets
Printer tip
Load envelopes one at a time or in the dedicated envelope slot, set the flap side correctly, and choose the exact envelope size in the driver.
C8 at common DPI
Pixel dimensions for C8 at popular resolutions. Rounded to whole pixels; physical sheet remains 57 × 81 mm.
| DPI | Width (px) | Height (px) |
|---|---|---|
| 72 | 162 | 230 |
| 96 | 215 | 306 |
| 150 | 337 | 478 |
| 300 | 673 | 957 |
| 600 | 1,346 | 1,913 |
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57 × 81 mm (2.24 × 3.19 in)