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What Is A4 Size Sheet? | Size of A4 Paper | A4 Paper Size & Uses

A4 Size Sheet, Size of A4 Paper & Uses, Paper Sizes A0, A1, A2, A3, A4

How will know that the paper you are using is A4? Why A4 paper seems to be the same size as regular printer paper? You've undoubtedly seen the A4 paper size choice if you've ever tinkered with your computer's print settings. 

When someone asks for the A4 size paper, then it is referring to a particular size. You should know about it, its size, uses and other types. 

What is A4 size sheet? 

A4 paper is 210 x 297 mm and is the most widely used and recognized sheet of paper. This is a common printing method for everything from Word documents to stationery letterheads. A4 is the standard home printing format, and all laser and inkjet printers, as well as certain mobile printers, should support it.

It may be folded in half to form two A5 sheets. An A4 sheet of paper will fit in a C4 envelope. According to the ISO 216 international paper size standard, A4 is part of the A series.

Uses of A4 size sheet  

Business papers, school reports, fliers, menus, and door signs all use this paper size. A4 size is your best pick if you plan on scanning your paper to another person or machine. It is the most common option.

The same can be said about physical mail. Large envelopes are made to fit A4 paper comfortably without folding or creasing. Regular envelopes, likewise, are made to suit a tri-folded piece of A4 paper.

What other sizes are available? 


Despite having the smallest number, the A0 paper size (841 x 1189 mm) is the biggest of them all. In other words, they're over a meter tall, or the equivalent of 16 sheets of A4 paper. These are typically used to create enormous signs and posters.


These sheets of paper, similar to A0 paper, would be used to make signage, window displays, and posters. They are not, however, as large as A0, with an A1 paper size of 594 x 841 mm.


A2 paper measures 420 x 594 mm when scaled down from the above. Notices, posters, art prints, and window displays are all examples of uses for this size of paper. It's about the same size as a British broadsheet newspaper


A3 paper measures 297 x 420 mm, which is comparable in size to a tabloid newspaper but differs somewhat in dimensions. This is one of the most commonly used paper sizes for posters, plans, charts, and presentations. While not a common paper size for domestic use, many corporate smart inkjet printers can print on A3 paper, and some can even print on A4 paper.


Another set of measurements you'll be familiar with is A5 paper size, which is 148.5 x 210 mm and has a wide range of applications. It's a convenient and compact size for anything from flyers and invites to booklets, calendars, and diaries. While few mobile printers support A5 printing, many ordinary home printers do as well, because A5 is half the size of A4, allowing two A5 prints to be printed on one sheet.


The standard A6 paper size is 105 x 148.5 mm, which is too tiny for large blocks of text but has a lot of other applications. Some mobile printers can print in this size, which is commonly used for flyers, postcards, pamphlets, and save-the-date notices.

Disclaimer: The information presented here is for general information purposes only and true to best of our understanding. Users are requested to use any information as per their own understanding and knowledge. Before using any of the information, please refer to our Privacy Policy and Terms and Conditions.

  • Created on May 19, 2022

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