A Guide to Poster & Paper Sizes
The most commonly used sizes are A1, A2, A3, & A4 but there are paper size options available from A0 to A10. Unlike the name suggests, an A0 poster size is larger than the A4, the larger the number becomes the smaller the paper size. The A series paper sizes can be halved to create another size. For example, if you take an A4 piece of paper and fold it in half it would be A5 size
View the below table for the standard UK A Series poster/paper sizes, available in Millimetres (MM) and Inches (IN)
Poster Size
Millimeters (MM)
Inches (IN)
A0
A2
A3
A4
A5
A6
A7
A8
A9
A10
841 x 1189
594 x 841
420 x 594
297 x 420
210 x 297
148 x 210
148 x 105
105 x 74
74 x 52
52 x 37
37 x 26
33.11 x 46.81
23.39 x 33.11
16.54 x 23.39
11.69 x 16.54
8.27 x 11.69
5.83 x 8.27
5.8 x 4.1
4.1 x. 2.9
2.9 x 2.0
2.0 x 1.5
1.5 x 1.0
Size benefits
- A0 Poster - Great for impactful advertising, event signage and art pieces.
- A1 - Good for promotion posters, architectural plans and store signage. A fantastic size to cover a display board.
- A2 - The perfect poster size for a smaller wall. Also suitable for technical drawings and calendars.
- A3 - Good for small posters, diagrams and signage. The A3 poster size is often seen in shops and other retail spaces.
- A4 - The all rounder suitable for document printing, notebooks, magazines, reports and leaflets.
- A5 - Perfect for advertising flyers and mail outs. The compact size is easy to distribute yet can hold a lot of information.
- A6 - A good size for vouchers, invitations, postcards and instructional cards.

Outside of the A -series the B-series and C-series are sometimes used for specific projects. At Abbott’s we understand that not all projects can be condensed into a sizing chart option. If you require a unique paper size for your printing project, please get in touch to find out how we can bring your vision to paper – standard or otherwise.