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What Are The Width And Height Of A4 Paper?

Question asked by Alice:

I'm trying to create a design for an A4 poster in Photoshop. However, I'm not sure what the width and height of an A4 piece of paper are. Can someone help me please?

Follow-up responses...

A4 Paper Width And Height

posted by Alastair:

The A4 paper size is commonly used for documents such as letters, magazines, forms and, of course, posters.

The width and height of A4 paper are:

  • In millimeters: 210mm x 297mm
  • In centimeters: 21cm x 29.7cm
  • In inches: 8.27in x 11.69in

These dimensions follow the ISO 216 standard for A series paper sizes. Note that they differ to the US Letter paper width and height.

A4 Paper Dimensions In Pixels

Note that if you're creating a Photoshop image file, the pixel dimensions will vary based upon the dots per inch (DPI) of the image. 72 DPI is standard for the web, but 300 DPI is standard for print.

  • A4 at 72dpi: 595 pixels x 842 pixels
  • A4 at 300dpi: 2480 pixels x 3508 pixels






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