A Paper Size in Pixels: A4, A3, A5 Converter

A Paper Size in Pixels Converter

Welcome to the most accurate A Paper Size in Pixels Converter. Whether you are setting up a document in Photoshop, designing a web banner, or preparing a file for print, this tool helps you convert standard ISO 216 paper sizes (A0–A10) into exact pixel dimensions based on your resolution (DPI/PPI).

Resolution (DPI or PPI):
Paper Size:



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Quick Reference: Most Common A-Series Sizes

If you are looking for the standard dimensions for the most popular paper sizes, use this quick guide.

A4 Paper Size in Pixels

A4 is the standard paper size used worldwide for documents, letters, and magazines.

  • For Printing (300 DPI): 2480 x 3508 pixels

  • For Screen/Web (72 DPI): 595 x 842 pixels

  • For Average Quality (150 DPI): 1240 x 1754 pixels

A3 Paper Size in Pixels

A3 is double the size of A4, often used for posters, diagrams, and drawings.

  • For Printing (300 DPI): 3508 x 4961 pixels

  • For Screen/Web (72 DPI): 842 x 1191 pixels

Why Resolution (DPI) Matters

You cannot define a paper size in pixels without knowing the DPI (Dots Per Inch). Physical paper (inches/mm) and digital screens (pixels) work differently. The “DPI” value tells the converter how many pixels to pack into every inch of paper.

  • 300 DPI (High Quality Print): This is the industry standard for printing. If you are designing a brochure, flyer, or business card, always set your resolution to 300 DPI to avoid blurry images.

  • 72 DPI or 96 DPI (Screen/Web): This is the standard for monitors and websites. Use this low resolution only if your image will live on a screen and never be printed.

  • 150 DPI (Draft/Newspaper): Good for simple home office printing or newspapers where high-gloss quality isn’t required.

A Paper Sizes In inches and Millimeters

This is a list for paper sizes commonly used in inches and millimeters.

A Paper Size inches Millimeters
A0 33.1 x 46.8 inches 841 x 1189 mm
A1 23.4 x 33.1 inches 594 x 841 mm
A2 16.5 x 23.4 inches 420 x 594 mm
A3 11.7 x 16.5 inches 297 x 420 mm
A4 8.3 x 11.7 inches 210 x 297 mm
A5 5.8 x 8.3 inches 148 x 210 mm
A6 4.1 x 5.8 inches 105 x 148 mm
A7 2.9 x 4.1 inches 74 x 105 mm
A8 2 x 2.9 inches 52 x 74 mm
A9 1.5 x 2 inches 37 x 52 mm
A10 1 x 1.5 inches 26 x 37 mm
2A0 46.8 x 66.2 inches 1189 x 1682 mm
4A0 66.2 x 93.6 inches 1682 x 2378 mm

A Paper Size In Pixels

A Paper Sizes At Common Resolutions

This is a list for A paper sizes in pixels at most common resolutions (72, 96, 125 and 300)

A Paper Size 72 DPI 96 DPI 150 DPI 300 DPI
A0 2384 x 3370 px 3179 x 4494 px 4967 x 7022 px 9933 x 14043 px
A1 1684 x 2384 px 2245 x 3179 px 3508 x 4967 px 7016 x 9933 px
A2 1191 x 1684 px 1587 x 2245 px 2480 x 3508 px 4960 x 7016 px
A3 842 x 1191 px 1123 x 1587 px 1754 x 2480 px 3508 x 4960 px
A4 595 x 842 px 794 x 1123 px 1240 x 1754 px 2480 x 3508 px
A5 420 x 595 px 559 x 794 px 874 x 1240 px 1748 x 2480 px
A6 298 x 420 px 397 x 559 px 620 x 874 px 1240 x 1748 px
A7 210 x 298 px 280 x 397 px 437 x 620 px 874 x 1240 px
A8 147 x 210 px 197 x 280 px 307 x 437 px 614 x 874 px
A9 105 x 147 px 140 x 197 px 219 x 307 px 437 x 614 px
A10 74 x 105 px 98 x 140 px 154 x 219 px 307 x 437 px
2A0 3370 x 4768 px 4494 x 6357 px 7022 x 9933 px 14043 x 19866 px
4A0 4768 x 6741 px 6357 x 8988 px 9933 x 14043 px 19866 x 28087 px

Explore Other Paper Standards

While the A-series is the most common, different projects may require other international or regional standards. Use our specialized tools to get the exact pixel dimensions for your next design:

  • B Paper Size In Pixels: The B-series is commonly used for posters, books, and passports. It provides sizes that fall between the A-series increments.

  • C Paper Size In Pixels: The C-series is the global standard for envelopes. Use this to ensure your A4 or A5 documents fit perfectly into their digital or physical mailing counterparts.

  • US Paper Size In Pixels: If you are working with clients in the United States or Canada, you will need pixel dimensions for Letter, Legal, and Tabloid sizes, which differ from the ISO metric standards.

Frequently Asked Questions (FAQ)

How do I calculate paper size in pixels?

The formula is simple: Pixels = Length (inches) x DPI. For example, an A4 paper is 8.27 inches wide. If you want to print it at high quality (300 DPI), the calculation is: 8.27 inches x 300 DPI = 2481 pixels.

What is the pixel size for A4 in Photoshop?

When creating a new file in Photoshop for print, select A4 from the presets or manually enter 2480 x 3508 pixels and ensure the resolution is set to 300 Pixels/Inch.

Is 72 DPI good for printing?

No. 72 DPI is too low for physical printing and will result in a blurry or “pixelated” image. 72 DPI is strictly for screens (monitors, phones, and websites). For printing, always aim for 300 DPI.

What size is A4 in pixels for web use?

If you are displaying an A4 document on a website, you typically use 72 DPI or 96 DPI. At 72 DPI, A4 dimensions are 595 x 842 pixels.