FAQs > Paper Sizes Guide

Paper Sizes

Our paper sizes are based on the International Standard ISO 216.
ISO paper sizes are worked out from the ratio of the square root of 2 or 1:1.4142. The starting point for paper sizes is A0 paper which is a piece of paper of area 1 metre squared. Every size down from this being half the previous size or the size of the larger piece folded along the centre of its longest half. Most offices and businesses use the size A4.


Common Uses for Paper Sizes

A0, A1        Technical drawings, posters
A1, A2        Flip charts
A2, A3        Drawings, diagrams, large tables
A4               Letters, magazines, forms, catalogs, printers and photocopiers.
A5               Leaflets, flyers and note pads
A6               Postcards
A7               Labels
A8               Business cards


Paper Measurements

Name	mm	inches
A0	841 x 1189	33.1 x 46.8
A1	594 x   841	23.4 x 33.1
A2	420 x   594	16.5 x 23.4
A3	297 x   420	11.7 x 16.5
A4	210 x   297	8.3 x 11.7
A5	148 x   210	5.8 x  8.3
A6	105 x   148	4.1 x  5.8
A7	74 x   105	2.9 x  4.1
A8	52 x     74	2.1 x  2.9

Below is a diagram to show the various paper sizes.