Poster Size Calculator
150 DPI is usually plenty.
Pixels required
2,481 × 3,509 px
your file is large enough
Posters are viewed from a distance, which is why 150 DPI is generally adequate and 300 is usually unnecessary. Printing an A1 at 300 DPI needs four times the pixels of 150 and produces no visible improvement at normal viewing distance.
How the Poster Size Calculator works
Posters are viewed from a distance, which is why 150 DPI is generally adequate and 300 is usually unnecessary. Printing A1 at 300 needs four times the pixels of 150 and produces no visible improvement at normal viewing distance.
Also known as: poster print dimensions · A1 A2 poster size calculator · large format print size
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Frequently asked questions
What resolution do posters need?
150 DPI is the working standard for posters viewed from a metre or more. Fine-art reproduction viewed closely is the exception.
What are the standard poster sizes?
The A series, A0 through A4, in most of the world, and 18 × 24 and 24 × 36 inches in North America. Frames are far easier to find in standard sizes.
How many pixels for an A1 poster?
About 3500 × 4970 at 150 DPI. At 300 DPI it doubles in each direction to roughly 7000 × 9930.
Should I add bleed to a poster?
If the design reaches the edge, yes. Many posters are printed with a white border precisely to avoid the question.