UK Paper Size Guide
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June 28 12:46:57, 2025
There’s a wide range of paper sizes available in the UK, which can sometimes be confusing when trying to choose the right one for your needs. Paper sizes in the UK follow the international A standard, including A0 through to A8. Each size has specific dimensions and is suited for different purposes. This guide will walk you through the exact measurements in both centimeters and inches, along with common uses for each size.
**International A Sizes**
| Size | Millimetres | Inches |
|------|-------------|--------|
| A0 | 841 x 1189mm | 33.1 x 46.8 inch |
| A1 | 594 x 841mm | 23.4 x 33.1 inch |
| A2 | 420 x 594mm | 16.5 x 23.4 inch |
| A3 | 297 x 420mm | 11.7 x 16.5 inch |
| A4 | 210 x 297mm | 8.3 x 11.7 inch |
| A5 | 148 x 210mm | 5.8 x 8.3 inch |
| A6 | 105 x 148mm | 4.1 x 5.8 inch |
| A7 | 74 x 105mm | 2.9 x 4.1 inch |
| A8 | 52 x 74mm | 2.0 x 2.9 inch |
**A0 Paper Size**
A0 is the largest in the A series and is often used for technical drawings, posters, and large-scale presentations. Due to its size, it's important to ensure high-resolution settings and quality printing equipment if you're planning to print in A0. The exact dimensions are:
- **In Centimeters:** 84.1 x 118.9 cm
- **In Inches:** 33.1 x 46.8 inches
**A1 Paper Size**
A1 is commonly used for large posters, flipcharts, and detailed technical drawings. It requires high-quality printing to maintain clarity. The dimensions are:
- **In Centimeters:** 59.4 x 84.1 cm
- **In Inches:** 23.4 x 33.1 inches
**A2 Paper Size**
A2 is ideal for medium-sized posters, architectural plans, and diagrams. It’s also popular for creating large spreads in printed materials. The measurements are:
- **In Centimeters:** 42 x 59.4 cm
- **In Inches:** 16.5 x 23.4 inches
**A3 Paper Size**
A3 is widely used for reports, large tables, and double-page spreads. It’s a popular choice in offices and schools. The size is:
- **In Centimeters:** 29.7 x 42 cm
- **In Inches:** 11.7 x 16.5 inches
**A4 Paper Size**
A4 is the most commonly used size globally, especially in English-speaking countries. It’s perfect for letters, documents, magazines, and forms. The dimensions are:
- **In Centimeters:** 21 x 29.7 cm
- **In Inches:** 8.3 x 11.7 inches
**A5 Paper Size**
A5 is great for booklets, leaflets, and small brochures. It’s compact and easy to carry around. The size is:
- **In Centimeters:** 14.8 x 21 cm
- **In Inches:** 5.8 x 8.3 inches
**A6 Paper Size**
A6 is often used for greeting cards, small flyers, and pocketbooks. It’s also found in items like library microfiches. The measurements are:
- **In Centimeters:** 10.5 x 14.8 cm
- **In Inches:** 4.1 x 5.8 inches
**A7 Paper Size**
A7 is too small for regular text but is used in professional printing or for making large post-it notes. Eight A7 sheets fit into one A4 sheet. The size is:
- **In Centimeters:** 7.4 x 10.5 cm
- **In Inches:** 2.9 x 4.1 inches
**A8 Paper Size**
A8 is typically used for business cards, ID cards, and driving licenses. It’s efficient for bulk printing. The dimensions are:
- **In Centimeters:** 5.2 x 7.4 cm
- **In Inches:** 2.0 x 2.9 inches
**What is GSM?**
GSM stands for "grams per square metre" and refers to the weight of the paper. The higher the GSM, the thicker and heavier the paper. For example, 80gsm is typical for everyday printing, while 120gsm is used for brochures or business cards.
**What is Whiteness?**
Whiteness refers to how bright and clean the paper appears. It's measured on a scale from 0 to 100 using the CIE (Commission Internationale de l’Éclairage) system. A higher number means a whiter sheet, which is often preferred for professional printing.
This guide should help you make an informed decision when selecting paper for your next project. Whether you need to print business cards, letters, or large posters, understanding the right size and quality can make all the difference. Keep this information handy to ensure you always order the correct paper for your needs.