Envelope Size Calculator
Calculate the right envelope size for your paper
Envelope Size Calculator
Standard Envelope Sizes
| Envelope | mm (W × H) | inches (W × H) | Fits Paper |
|---|---|---|---|
| DL | 110 × 220 | 4.33 × 8.66 | A4 (folded in 3) |
| C0 | 917 × 1297 | 36.1 × 51.06 | A0 |
| C1 | 648 × 917 | 25.51 × 36.1 | A1 |
| C2 | 458 × 648 | 18.03 × 25.51 | A2 |
| C3 | 324 × 458 | 12.76 × 18.03 | A3 |
| C4 | 229 × 324 | 9.02 × 12.76 | A4 |
| C5 | 162 × 229 | 6.38 × 9.02 | A5 |
| C6 | 114 × 162 | 4.49 × 6.38 | A6 |
| C7 | 81 × 114 | 3.19 × 4.49 | A7 |
| C8 | 57 × 81 | 2.24 × 3.19 | A8 |
| C9 | 40 × 57 | 1.57 × 2.24 | A9 |
| C10 | 28 × 40 | 1.1 × 1.57 | A10 |
| B4 | 250 × 353 | 9.84 × 13.9 | A4 (large) |
| B5 | 176 × 250 | 6.93 × 9.84 | A5 (large) |
| B6 | 125 × 176 | 4.92 × 6.93 | A6 (large) |