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Envelope sizes

Common mailing and BRE envelope sizes

C6	162 x 114 mm	16.2 x 11.4 cm	6.4 x 4.5 in
DL undersized	216 x 102 mm	21.6 x 10.2 cm	8.5 x 4.0 in
DL	220 x 110 mm	22.0 x 11.0 cm	8.7 x 4.3 in
DL oversized	229 x 114 mm	22.9 x 11.4 cm	9.0 x 4.5 in
DL oversized plus*	235 x 114 mm	23.5 x 11.4 cm	9.3 x 4.5 in
C5 undersized	220 x 155 mm	22.0 x 15.5 cm	8.7 x 6.1 in
C5	229 x 162 mm	22.9 x 16.2 cm	9.0 x 6.4 in
C5 oversized	235 x 162 mm	23.5 x 16.2 cm	9.3 x 6.4 in
C5 oversized plus*	238 x 162 mm	23.8 x 16.2 cm	9.4 x 6.4 in
C4	229 x 324 mm	22.9 x 32.4 cm	9.0 x 12.8 in
C4 oversized*	240 x 330 mm	24.0 x 33.0 cm	9.5 x 13.0 in

* indicates preferred envelope sizes for efficient machine insertion.

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