C4 Envelope Size
A standard C4 size envelope is designed to fit unfolded A4 paper.
| C4 Envelope Size | 324 x 229mm |
| A4 Paper Size | 210 x 297mm |
A standard C4 size envelope is designed to fit unfolded A4 paper.
| C4 Envelope Size | 324 x 229mm |
| A4 Paper Size | 210 x 297mm |
A standard C5 size envelope is designed to fit A4 paper folded in half, or A5 paper unfolded.
| C5 Envelope Size | 162 x 229mm |
| A5 Paper Size | 148 x 210mm |
| A4 Paper Size Folded in Half | 148 x 210mm |
A standard C6 size envelope is designed to fit A4 paper folded into quarters, A5 paper folded in half or A6 paper unfolded (often the size of a flyer).
| C6 Envelope Size | 114 x 162mm |
| A6 Paper Size | 105 x 148mm |
| A5 Paper Size Folded in Half | 105 x 148mm |
| A4 Paper Size Folded in Quarters | 105 x 148mm |
A standard DL size envelope is designed to fit A4 paper folded into thirds (often the size of a letter), or compliment slips.
| DL Envelope Size | 110 x 220mm |
| A4 Paper Size Folded in Thirds | 99 x 210mm |
