How big is an a1 poster?

A1 posters are a popular choice for various applications, from advertising events and promotions to showcasing artwork and photography. Their size makes them visually striking and perfect for catching the eye. In this article, we’ll discuss the dimensions of an A1 poster, its common uses, and some tips for creating an effective A1 poster.

A1 Poster Dimensions

An A1 poster measures 594 x 841 millimeters (23.4 x 33.1 inches). This size is part of the ISO 216 paper size standard, which is based on a series of paper sizes that progressively decrease in size from A0 (the largest) to A10 (the smallest). Each size is half the size of the one before it, allowing for easy scaling and consistency.

Common Uses for A1 Posters

  1. Advertising and Promotions
    • A1 posters are often used for advertising events such as concerts, festivals, and sports games.
    • They can also be found in retail environments, promoting sales, new products, or special offers.
  2. Art and Photography
    • Artists and photographers often use A1 posters to showcase their work.
    • A1 size provides ample space to display detailed artwork and high-resolution photographs.
  3. Educational and Informational Displays
    • In schools, libraries, and offices, A1 posters can be used to display educational materials, charts, and infographics.
    • The large size makes it easy for viewers to read and understand the information.
  4. Movie and Theater Posters
    • A1 is a popular size for movie and theater posters, offering enough space for vibrant imagery and text.
    • These posters help attract audiences and generate interest in upcoming shows or films.

Tips for Creating Effective A1 Posters

  1. Design with Impact
    • Make sure your poster has a clear and compelling visual design that stands out.
    • Use bold colors and high-quality images to capture attention.
  2. Balance Text and Images
    • Use concise and engaging text that conveys your message without overwhelming the viewer.
    • Balance the text with images to create a visually appealing layout.
  3. Choose Readable Fonts
    • Opt for fonts that are easy to read from a distance.
    • Ensure the font size is appropriate for the size of the poster and the intended viewing distance.
  4. Consider the Viewing Environment
    • Think about where your poster will be displayed and adjust the design accordingly.
    • For outdoor placements, ensure the poster is weather-resistant and durable.
  5. Proof and Print Carefully
    • Double-check all text and images for errors before printing.
    • Choose a high-quality printing method to ensure your poster looks sharp and professional.


An A1 poster, with its generous dimensions of 594 x 841 millimeters (23.4 x 33.1 inches), offers ample space for creating visually impactful designs. Whether you’re advertising an event, showcasing artwork, or presenting information, an A1 poster can help you communicate your message effectively. By following design best practices and considering the viewing environment, you can create stunning A1 posters that stand out and leave a lasting impression.