International Envelope Paper Sizes List

FormatWidth × Height (mm)Width × Height (inches)
DL110 × 2204.3 × 8.7
B4250 × 3539.8 × 13.9
B5176 × 2506.9 × 9.8
B6125 × 1764.9 × 6.9
C3324 × 45812.8 × 18.0
C4229 × 3249.0 × 12.8
C4M318 × 22912.5 × 9.0
C5162 × 2296.4 × 9.0
C6/C5114 × 2294.5 × 9.0
C6114 × 1624.5 × 6.4
C64M318 × 11412.5 × 4.5
C7/C681 × 1623.2 × 6.4
C781 × 1143.2 × 4.5
CE4229 × 3109.0 × 12.2
CE64114 × 3104.5 × 12.2
E4220 × 3128.7 × 12.3
EC45220 × 2298.7 × 9.0
EC5155 × 2296.1 × 9.0
E5115 × 2204.5 × 8.7
E56155 × 1556.1 × 6.1
E6110 × 1554.3 × 6.1
E65110 × 2204.3 × 8.7
R7120 × 1354.7 × 5.3
S4250 × 3309.8 × 13.0
S5185 × 2557.3 × 10.0
S65110 × 2254.3 × 8.9
X5105 × 2164.1 × 8.5
EX5155 × 2166.1 × 8.5