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What is a Standard Paper Size?

We have put together the below paper size guide to show you the measurements in both millimetres and inches for the international A standard which covers A1, A2, A3, A4, A5, A6, A7 and A8.

Each numbered A size is exactly half the size of the previous one. For example, if you cut a sheet of A4 paper in half along its longest side, you will have two sheets of A5.

We have a comprehensive range of paper in all sizes to suit every requirement. If you are unable to locate the paper you need or need further information please call us on 0800 376 9966 or use our online contact form.





A0 841 x 1189mm 33.1 x 46.8"
A1 594 x 841mm 23.4 x 33.1"
A2  420 x 594mm 16.5 x 23.4"
A3  297 x 420mm 11.7 x 16.5"
A4  210 x 297mm 8.3 x 11.7"
A5 148 x 210mm 5.8 x 8.3"
A6 105 x 148mm 4.1 x 5.8"
A7 74 x 105mm 2.9 x 4.1"
A8  52 x 74mm 2.0 x 2.9"


🡹 Click on the sizes above to be taken straight to our comprehensive range of paper