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Poster Size Guide

- 15-Jun-2016 -

Choosing the right dimension for your poster prints is essential to maximise its impact, as well as making sure it is proportioned to the space it will be used in.

The A series sizing for posters has been the most popular since before World War II, and is used all over the world. Progression of the formats is inverse, with A0 being the largest and A10 being the smallest.

Poster Size Guide


While there are smaller formats, which are used for prints such as birthday cards or leaflets.

Using this poster size guide, you will be able to select the right poster size for your needs. Bear in mind your size choices, and options based on display space, to ensure your design is visible and legible.

A size illustration2” by User:Bromskloss – This is an improved version of Image:A_size_illustration.svg.. Licensed under CC BY-SA 3.0 via Commons

A4 is perfect for restricted spaces

Size guide: 210mm x 297mm – 8.27” x 11.69”

This is the format that you encounter most commonly in your everyday life as it is the size of standard printer paper.

Choose A4 if you are using limited space such as: a very small advertising billboard, petite event room, or a space on a wall in your home that you would like to brighten up.

A4 is a practical format for areas with limited space such as info desks, reception spaces or street posts. But keep in mind that an A4 poster can only feature smaller text, so it will not be readable from afar.

A3 works for small scale advertising

Size guide: 297mm x 420mm – 11.69 x 16.53

The A3 size is ideal for large, yet limited, space advertising. With more overall space on the page for legible content, you can afford to use bigger imagery and more text.

You will most often find calendars printed on A3 sheets, as well as ads for phone booths and announcements on bulletin boards. A3 posters are the standard size for information advertising on train and tube stations.

Your favourite celebrities smile from an A2

Size guide: 420mm x 594mm – 16.53 x 23.39

A2 is a good format to use for informative posters in a doctor’s office, in shops or in a classroom. The blown up size is better suited to more statement posters.

You will most likely be familiar with the A2 poster size from band and movie posters – the one’s that often decorate teenage bedrooms or for art prints. Because of their versatile size and use, they are frequently used for small scale adverts.

A1 and A0 are the mammoths of the A series

Size guide: A1 – 594mm x 841mm – 23.39 x 33.11 & A0 – 841mm x 1189mm – 33.11 x 46.61

If you have a large area available, then you should also have a large poster to fill it: this is where A1 and A0 come in. Frequently used for outdoor advertising, where space is abundant, you can find A1 and A0 used in malls, cinemas and auditoriums.

While they are not the standard movie poster size, they are commonly used for film advertisements inside cinemas as well as in cafes and bookshops. The A1 format is also perfect for promotional posters to give out to film fans.

They are the most eye-catching format because they have room for large fonts and designs, but bear in mind that in a small place they might feel overwhelming and hard to read from up close.


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