What size is a C10 envelope?
C10 measures 28 × 40 mm, or 1.10 × 1.57 inches.
C10 dimensions
Portrait
28 × 40 mm
- Millimetres
- 28 × 40 mm
- Centimetres
- 2.8 × 4 cm
- Inches
- 1.10 × 1.57 in
- Points
- 79 × 113 pt
- Picas
- 6.6 × 9.4 pc
- Pixels · 72 PPI
- 79 × 113 px at 72 PPI
- Pixels · 150 PPI
- 165 × 236 px at 150 PPI
- Pixels · 300 PPI
- 331 × 472 px at 300 PPI
How C10 fits
A C10 envelope is proportioned to contain an unfolded A10 sheet.
The diagram is illustrative; the written dimensions above are authoritative.
Common uses
- Mailing A10 documents
- Enclosures and presentation packs
Questions about C10
What is C10 in pixels at 300 DPI?
For image setup, C10 is 331 × 472 pixels at 300 PPI. DPI describes printer dots; PPI is the technically correct measure for an image file.
Which paper size fits a C10 envelope?
A C10 envelope holds an unfolded A10 sheet.
Can a C10 envelope be used landscape?
Yes. Rotate the envelope to 40 × 28 mm.
What is C10 commonly used for?
Common uses include mailing a10 documents and enclosures and presentation packs.