Envelope Sizes

FormatDimensions (HxW mm)Suitable for content format
DL 110 × 220 1/3 A4
C7/C6 81 x 162 1/3 A5
C6 114 × 162 A6 (or A4 folded in half twice)
C6/C5 114 × 229 1/3 A4
C5 162 × 229 A5 (or A4 folded in half once)
C4 229 × 324 A4
C3 324 × 458 A3
B6 125 × 176 C6
B5 176 × 250 C5
B4 250 × 353 C4
E4 280 × 400 B4