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A4 Standard white paper

Order A4 paper from our extensive printer paper range. Choose from paper reams, boxes, and pallets. We offer 123ink own-brand A-GRADE premium quality paper, at 80g it's designed for smooth, double-sided printing. With a variety of weights available, you can find the perfect paper for your needs. Order A4 paper now for fast delivery!

Order A4 Standard white paper

Order cheap A4 printer paper

Looking for high-quality printer paper that’s perfect for all your needs? Our premium A4 paper (210 x 297 mm) is the ideal choice for printing, copying, and writing. Designed for sharp, clear prints and smooth writing, our entire range is compatible with all standard printers and copiers. Available in reams, boxes, palettes and mini pallets it’s a cost-effective solution for offices, classrooms, and home use.

The dimensions of A4 paper

A4 paper measures at 210mm x 297mm, making it the global standard for most printing and writing needs. As part of the ISO 216 system, its size is based on the √2 aspect ratio, allowing seamless resizing to other A-series formats like A3 and A5. This ensures A4 is perfectly suited for a wide range of applications, from formal business documents to creative projects.

A4 paper as the standard format and size

In Ireland, Europe and most of the world, A4 copier paper is the default size for offices, schools and homes. Whether it’s business contracts, school assignments, or personal letters, A4 printer paper ensures that documents maintain consistency in appearance and functionality regardless of where they are created or viewed.

Its universal adoption is due to its practicality and compatibility with printers, folders and binders. As part of the international ISO standard, it simplifies the exchange and formatting of documents across countries, making it a reliable choice in global communication.

Understanding the A series paper sizes

The A series is an internationally standardised set of paper sizes defined by ISO 216, characterised by a consistent aspect ratio of √2:1. It begins with A0, the largest size (841mm x 1189mm), and each subsequent size is half the area of the previous one. A4 (210mm x 297mm) is the most commonly used size for office documents, letters, and reports.

Other sizes in the series include A3 (297mm x 420mm), which is typically used for presentations and diagrams, and A5 (148mm x 210mm), ideal for booklets and notepads. Smaller sizes, such as A6, A7, and A8, are used for postcards, tickets, and business cards. The scaling of the A series ensures compatibility and ease of use across a wide range of industries globally.

The table below shows the dimensions of the A series paper sizes, listed in both millimetres and inches:
 
Size Dimesnions (mm) Dimensions (inches)
A0 841 x 1189 33.1 x 46.8
A1 594 x 841 23.4 x 33.1
A2 420 x 594 16.5 x 23.4
A3 297 x 420 11.7 x 16.5
A4 210 x 297 8.3 x 11.7
A5 148 x 210 5.8 x 8.3
A6 105 x 148 4.1 x 5.8
A7 74 x 105 2.9 x 4.1
A8 52 x 74 2.0 x 2.9
A9 37 x 52 1.5 x 2.0
A10 26 x 37 1.0 x 1.5

For more details on paper sizes, take a look at our paper size guide diagrams here.  

The difference between A4 and letter paper?

While A4 paper is the global standard, North America uses letter paper, which is slightly shorter and wider at 8.5 inches x 11 inches. This difference in size can cause formatting challenges when sharing documents internationally. In Europe, most printers and equipment are set up for A4, making it the more convenient and widely used option.

Everyday uses of A4 paper

A4 copier paper is a cornerstone of daily life in Ireland. It’s used for printing documents, taking notes, creating flyers, and completing school assignments. Its versatility also makes it popular for crafting, sketching, and other creative endeavours. Whether in an office, classroom, or home, A4 copier paper is a reliable and practical tool.

Everyday uses of A4 paper

The weight of A4 printer paper, measured in GSM (grams per square metre), determines its thickness and quality. Standard 80 GSM paper is commonly used for everyday tasks, while heavier options like 100 GSM offer a more premium feel. For specialised purposes, such as photo printing, thicker and smoother papers are available to improve the final output. However, some printers may not support thicker paper weights, so be sure to check your printer model in advance.

Printer compatibility with A4 paper

Printers in Europe are designed with A4 printer paper as the default size, ensuring ease of use for most tasks. Whether using inkjet, laser, or multifunction printers, A4 paper fits perfectly. Adjustments may be needed for other sizes, but A4 remains the most practical and widely supported option for printing at home or in the office.

For more information on paper visit our paper guide blog.
 

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Common Questions

How big is A4?

A4 paper measures 210mm by 297mm, or approximately 21cm by 29.7cm. In inches, this is roughly 8.27 by 11.69. It is the standard paper size used in Ireland and most of the world for documents, printing and everyday use.

How many cms or inches is A4 paper?

A4 paper measures 21cm by 29.7cm or approximately 8.27 inches by 11.69 inches. Its practical size is ideal for letters, reports, and office documents, ensuring compatibility with printers and folders.

How much does A4 paper weigh?

The weight of A4 paper depends on its gsm (grams per square metre), which measures the thickness and density of the paper. Standard office A4 paper typically weighs 80gsm, meaning a single sheet weighs approximately 4.99 grams. Heavier options, such as 120gsm or 160gsm, are used for higher-quality printing or presentations.
 

What is the difference between A4 and letter paper?

The key difference between A4 and Letter paper lies in their dimensions. A4 paper measures 210mm x 297mm (8.27 x 11.69 inches), while letter paper, used mainly in North America, is slightly shorter and wider at 8.5 x 11 inches (216mm x 279mm). A4 is the global standard, whereas letter paper is more common in the United States and Canada.
 

How many A4 sheets are in a ream?

A standard ream of x A4 paper contains 500 sheets. Reams are ideal for office printing and ensuring a consistent supply of paper.
 
We are dedicated to providing value, quality, and satisfaction with every purchase. With our extensive product range and attentive customer service, we’ve got you covered. If you have any questions, take a look at our Frequently Asked Questions page, or feel free to reach out to our customer service team – we're here to help!!