Envelope size · B series
B4 envelope size
A B4 envelope is 250 × 353mm (25 × 35.3cm, or 9.84 × 13.90 inches). It fits a stack of unfolded A4, or a C4 envelope, and is used for thick A4 documents, catalogues and reports.
B4 envelope in every unit
| Millimetres | 250 × 353mm |
|---|---|
| Centimetres | 25 × 35.3cm |
| Inches | 9.84 × 13.90 inches |
| Fits | a stack of unfolded A4, or a C4 envelope |
Portrait, width first. Landscape is the same two numbers the other way round.
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Common questions
What size is a B4 envelope?
250 × 353mm, which is 25 × 35.3cm or 9.84 × 13.90 inches.
What fits in a B4 envelope?
A stack of unfolded A4, or a C4 envelope. It is used for thick A4 documents, catalogues and reports.
What is the difference between C and DL envelopes?
C envelopes are sized to the A paper sizes: C4 takes A4 flat, C5 takes A5 flat or A4 folded once, C6 takes A6 or A4 folded twice. DL is the long envelope for A4 folded in thirds, and DLX is a slightly larger DL for letters with an insert.
Other envelope sizes
| Size | Millimetres | Inches |
|---|---|---|
| C3 envelope | 324 × 458 | 12.76 × 18.03 |
| C4 envelope | 229 × 324 | 9.02 × 12.76 |
| C5 envelope | 162 × 229 | 6.38 × 9.02 |
| C6 envelope | 114 × 162 | 4.49 × 6.38 |
| DL envelope | 110 × 220 | 4.33 × 8.66 |
| DLX envelope | 120 × 235 | 4.72 × 9.25 |
| 11B envelope | 90 × 145 | 3.54 × 5.71 |
| B4 envelope | 250 × 353 | 9.84 × 13.90 |
Every size we print, with a calculator for any other: print sizes in Australia.
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