Paper sizes - A4 297mm x 210mm

ISO sizes - trimmed stock 'A' Range The 'A' range is the main finished trimmed size of paper used in printing and other related industries. The series begins with A0 whose area is exactly 1 square metre and then the ratio of the sides of smaller A sizes are always 1:square root of 2 A7 105mm x 74mm A6 148mm x 105mm A5 210mm x 148mm A4 297mm x 210mm A3 420mm x 297mm A2 594mm x 420mm A1 841mm x 594mm A0 1189mm x 841mm

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