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Online Printing Explained: Paper sizes

22nd November 2011

Paper Size and Printing with

The A Class is an international standard. This means that no matter where you are in the world, a piece of A4 will always be a piece of A4. In essence, any piece of paper is considered to be in the A Class if it has the correct ratios (height vs lenth). This ratio has the unique quality that if it is folded in half lengthways, it will have exactly the same aspect ratio. A0 (which is designed to have the area of 1 square metre), for example, becomes a piece of A1 when folded in half lengthways. This then becomes a piece of A2 and so on. This characteristic holds true for the other two main paper size families: B and C.


A Series page sizes. A description of different paper and page sizes and dimensions used in the UK printing industry


Alternatively, the table below has a ist of all of the dimensions for standard A series paper and page dimensions. They can be found in mm and in:





4A0 1682 x 2378 mm 66.2 x 93.6 in
2A0 1189 x 1682 mm 46.8 x 66.2 in
A0 841 x 1189 mm 33.1 x 46.8 in
A1 594 x 841 mm 23.4 x 33.1 in
A2 420 x 594 mm 16.5 x 23.4 in
A3 297 x 420 mm 11.7 x 16.5 in
A4 210 x 297 mm 8.3 x 11.7 in
A5 148 x 210 mm 5.8 x 8.3 in
A6 105 x 148 mm 4.1 x 5.8 in
A7 74 x 105 mm 2.9 x 4.1 in
A8 52 x 74 mm 2.0 x 2.9 in
A9 37 x 52 mm 1.5 x 2.0 in
A10 26 x 37 mm 1.0 x 1.5 in


When it comes to printing, you will also come across some slightly unusal paper sizes:


What size are Double Crown Posters?: 508 x 762 mm or 20 x 20 in

What size are 4-sheet Posters?: 1000 x 1500 mm or 39.4 x 59.1 in 

What size are 6-sheet Posters?: 1200 x 18000 mm or 47.2 x 70.9 in

What size are DL Flyers?: 99mm x 210 mm or 3.9 x 8.3 in

What size are standard Business Cards? 85mm x 55 mm or 3.4 x 2.2 in


There’s not a lot to worry about with regard to paper sizes when using Our instant quote system handily tells you the exact size of the product you’re ordering. But its worth knowing a little bit more about paper sizes and how they relate to each other.


If you’ve had a look round the site, you’ll notice the majority of our print products fall within the “A” Class of paper sizes. This is the most standard paper size- you probably haven’t gone a day in your life without seeing at least one piece of paper that belongs to this family.


Because the use of A Class paper is so prevalent, we don’t list any others on But don’t worry, if you have the requirement for something a bit off the beaten track then we can sort that out- we’ll print any size paper you want- just give us a call. offers budget-friendly rates on a broad range of diligently printed items, including printed posters, flyers, booklets, brochures, business cards, leaflets, stickers, menus, letterheads, roller banners, invitations and calendars


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