A Series Paper Sizes

ISO A SERIES PAPER SIZES

Successive paper sizes in the series A1, A2, A3, and so forth, are defined by halving the preceding paper size along the larger dimension. The most frequently used paper size is A4 (210 × 297 mm) and by halving the larger dimension (297 mm) the size becomes A5 and so on.

A0 841x1189mm  /  A1 594x840mm  /  A2 420x594mm

A3 297x420mm  /  A4 210x297mm  /  A5 148x210mm

A6 105x148mm  /  A7 74x105mm  /  A8 52x74mm