Paper Sizes

“A” paper sizes – is a set of paper sizes established by the International Standards Organization (ISO) that ranges from 2A0 (the largest) to A7 (the smallest). The size of the paper goes down as the number goes up, and each is half the size of the previous e.g. two A4 sheets make up an A3 sheet and two A5 sheets make up an A4 sheet. The following are the more popular sizes:

A2 16.5 x 23.4 in — 420 x 594 mm
A3 11.7 x 16.5 in — 297 x 420 mm
A4 8.3 x 11.7 in — 210 x 297 mm
A5 5.8 x 8.3 in — 148 x 210 mm
A6 4.1 x 5.8 in — 105 x 148 mm

“B” paper size as defined by Epson. 11 x 17 in — 279.4 x 431.8 mm

“Super B” paper size as defined by Epson. 13 x 19 in — 330.2 x 482.6 mm

“C” paper size as defined by Epson. 17 x 22 in — 431.7 x 558.8 mm

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