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A3 SIZE

What is the A3 size for paper?

The A3 paper size is commonly used both in the business industry and at home. It measures at 297 x 420 mm and is a great alternative when you are showcasing presentations, charts, and enlargements. It is a popular and cost-efficient option because it is easy to produce in bulk at a low cost. Aside from A0, A1, and A2 formats, the A3 paper size offers enough space for you to create a stunning visual that will surely pique your target audience’s interest.

A3 dimensions in Millimetres, Centimetres and Inches

Paper format: A3
Dimensions in milimeters: 297 x 420 mm
Dimensions in Centimeters: 29.7 x 42 cm
Dimensions in Inches: 11.7 x 16.5 in

When should I use A3 paper for printing?

A3 sheets have a big enough surface for you to incorporate all your design ideas. This feature also makes it an ideal choice if you want to include information about your brand without being restricted by space. You can also use this format size to display your family pictures at home. For example, we offer photo posters which are available in A3 paper size. Just upload your picture online after placing your order and we can print your pictures on our 190 gsm special paper and deliver it to you in a short period.

On the other hand, you can also use A3 to spread details about an upcoming event to your target market. This can be in the form of flyers coupled with a minimalist design and few but bolder texts for crisp and concise messages. You can also simply hang them on walls and bulletin boards without being obstructive.

Another way you can use the A3 format is when you are trying to make a presentation which contains various large tables or diagrams. In fact, you can distribute this paper format around the table for added convenience to your attendees. By using this paper size, you will be able to demonstrate your ideas much clearer to your target audience.

Printing resolution for A3

Did you know that you need to adjust the pixels to 3508 x 4961 for offset printing at 300 ppi? This ensures that the image can be clearly seen at a short distance such as when you are reading a book, brochure, or magazine. On the other hand, if you are printing a picture for a photobook, you need to have a lower pixel count such as 250 dpi for optimal appearance. If it is at 150 ppi, then your image needs to be 1754 x 2480 pixels. This would be the minimum resolution for newspapers and posters if you want people to clearly see your image at a short distance.

Additionally, by cutting the A3 paper in half in its shortest side, you will get an A4 paper. When you fold two A3 papers next to each other in a spread, you will get an A2 paper.

This method of reproduction can be attributed to physics professor Georg Christoph Lichtenberg before it was reinvented a hundred years later by Dr. Walter Porstmann.

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