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US to Metric Paper Basis Weight Conversion Chart

While US paper weight is determined on varying basis according to paper type, the paper basis weight system used in China Printing Solutions follows the global metric standard, as shown below.

Size Width(mm) Height(mm) Width(inch) Height(inch)
ISO METRIC
AO 841 1189 33.11 48.81
A1 594 841 23.39 33.11
A2 420 594 16.54 23.39
A3 297 420 11.69 16.54
A4 210 297 8.27 11.69
A5 148 210 5.83 8.27
A6 105 148 4.13 5.83
A7 74 105 2.91 4.13
B0 1028 1456 40.48 57.32
B1 728 1028 28.66 40.48
B2 514 728 20.24 28.66
B3 364 514 14.33 20.24
B4 257 364 10.12 14.33
B5 182 257 7.17 10.12
B6 128 182 5.06 7.17
USA STANDARD
Photo 203 254 8 10
Portrait 229 305 9 12
Letter(A) 216 279 8.5 11
Legal 216 356 8.5 14
Ledger 279 432 11 17
Poster(C) 432 559 17 22
Poster(D) 559 863 22 34
Poster(E) 863 1117 34 44