Guide to Paper Sizes

A paper size guide helps you understand common paper sizes used for printing, such as A0, A1, A2, A3, A4, A5, and A6, and how they relate to each other. Each size is half the area of the size above it, with A0 being the largest and A6 being the smallest. Understanding these sizes is crucial for various applications like presentations, posters, and general office work.

Poster & Paper Size Guide

Poster & Paper
Size Guide

When designing digital content - whether it’s a flyer, brochure, or a large-format poster - it’s essential to choose the right size. Understanding standard paper and poster dimensions ensures your design fits its intended display perfectly.

The most commonly used formats are A0, A1, and A4, but the full A Series ranges from A0 (the largest) to A10 (the smallest). It’s important to note that the higher the number, the smaller the size. For instance, an A4 sheet is much smaller than an A0 poster.

A helpful feature of A Series sizing is its consistency: each size can be halved to form the next. For example, folding an A4 sheet in half gives you two A5 sheets - ideal for scaling designs efficiently across formats.

Refer to the chart below to explore the full range of A Series paper and poster sizes, listed in both millimeters (mm) and inches (in).

A Series poster/paper sizes

Guide to A Series Poster & Paper Sizes

Explore the table below for standard A Series poster and paper sizes, listed in both millimeters (mm) and inches (in). These are the most commonly used formats for flyers, brochures, posters, and other digital print materials.

Poster Size	Millimeters (MM)	Inches (IN)
A0	841 x 1189	33.11 x 46.81
A1	594 x 841	23.39 x 33.11
A2	420 x 594	16.54 x 23.39
A3	297 x 420	11.69 x 16.54
A4	210 x 297	8.27 x 11.69
A5	148 x 210	5.83 x 8.27
A6	148 x 105	5.8 x 4.1
A7	105 x 74	4.1 x. 2.9
A8	74 x 52	2.9 x 2.0
A9	52 x 37	2.0 x 1.5
A10	37 x 26	1.5 x 1.0

While the A Series is the most popular for display and general printing, it’s also helpful to know about the B and C Series. Though less commonly used for posters, B and C sizes are frequently chosen for book printing, specialty documents, and envelope formats.

B Series poster/paper sizes

Guide to B Series Poster & Paper Sizes

Explore the table below for standard B Series poster and paper sizes, listed both millimeters (mm) and inches (in). These are the most commonly used formats for flyers, brochures, posters, and other digital print materials.

Paper Size	Millimeters (MM)	Inches (IN)
B0	1000 x 1414	39.4 x 55.7
B1	707 x 1000	27.8 x 39.4
B2	500 x 707	19.7 x 27.8
B3	353 x 500	13.9 x 19.7
B4	250 x 353	9.8 x 13.9
B5	176 x 250	6.9 x 9.8
B6	125 x 176	4.9 x 6.9
B7	88 x 125	3.5 x 4.9
B8	62 x 88	2.4 x 3.5
B9	44 x 62	1.7 x 2.4
B10	31 x 44	1.2 x 1.7

Like the A Series, B Series sizes follow the 1:√2 aspect ratio. This means that folding a B0 sheet half produces a B1 size, folding B1 gives you B2, and so on – maintaining consistent proportions across formats. Use this knowledge to ensure your designs scale perfectly, no matter the format or final use.