C4 size
C4: 22.9 × 32.4 cm. In inches this is about 9.016 × 12.756 in.
C4
C-series envelopes · Paper sizes
22.9 × 32.4 cm
Standard size (W × H)
Centimetres (cm)
22.9 × 32.4 cm
Millimetres (mm)
229 × 324 mm
Inches (in)
9.016 × 12.756 in
Area
741.96 cm²
Aspect ratio
1 : 1.4148
Width / height
229 / 324
Pixel size at different DPI
| DPI | Width (px) | Height (px) | Total pixels | Typical use |
|---|---|---|---|---|
| 72 DPI | 649 | 918 | 595,782 (0.6MP) | Screen display |
| 96 DPI | 866 | 1,225 | 1,060,850 (1.1MP) | Windows default |
| 150 DPI | 1,352 | 1,913 | 2,586,376 (2.6MP) | Standard print |
| 200 DPI | 1,803 | 2,551 | 4,599,453 (4.6MP) | Good print |
| 300 DPI | 2,705 | 3,827 | 10,352,035 (10MP) | High-quality print |
| 600 DPI | 5,409 | 7,654 | 41,400,486 (41MP) | Professional print |
C4 measures 22.9 × 32.4 cm (229 × 324 mm) and belongs to the C-series envelopes group. It is typically used for Envelopes and Cards and invitations.
C4 — C4 size
C4: 22.9 × 32.4 cm (229 × 324 mm). C-series envelopes.
In inches this is about 9.016 × 12.756 in. The footprint area is about 741.96 cm².
300 DPI: 2,705 × 3,827 px.
Common uses
C4 · FAQ
How big is C4?
C4: 22.9 × 32.4 cm (229 × 324 mm).
What is the area of C4?
The footprint area is about 741.96 cm².
Where is C4 used?
Typical uses include Envelopes, Cards and invitations, Mailings.
Tip: leave a small tolerance when printing or installing; allow 3 mm bleed on each side for print artwork.