A what? Know your A0 from A4 paper sizes

Paper sizes for print

Most people are familiar with the most common paper sizes from filling up the home printer or the office copier, we've all seen a pack of A4 or A3 paper but in the printing world there are a lot more to paper sizes than these two familiar sizes.

While the A Paper sizes themselves run from A0 (the largest size) through to A10 (the smallest) the most common sizes for in printing terms run from A0 to A7.

The A Sizes

	Size in mm	Common uses in print
A0	841 x 1189mm	Posters, POS
A1	594 x 841mm	Posters, A-Boards
A2	420 x 594mm	Posters, A-Boards
A3	297 x 420mm	Posters, Leaflets (commonly folded to A4)
A4	210 x 297mm	Leaflets, Brochures, Letters / Stationery
A5	148 x 210mm	Flyers, Leaflets
A6	105 x 148mm	Postcards, Flyers, Leaflets
A7	74 x 105mm	Flyers, Appointment Cards

Business Cards

In addition to the A sizes, where print is concerned the other common size that we are always asked about is business cards. The standard for UK business cards is 85x55mm .