Reference library
A1 Paper Size
A1 measures 594 x 841 mm, 59.4 x 84.1 cm, or 23.39 x 33.11 in. See pixel dimensions by DPI, aspect ratio, bleed setup, comparisons, and related tools.
Last checked: 2026-05-01
How we calculate this
Methodology and source handling
We convert physical sizes to inches, multiply by the selected DPI/PPI value, and round to whole pixels.
Quick answer
Copy-ready answer
A1 is 594 x 841 mm, 59.4 x 84.1 cm, or 23.39 x 33.11 in. At 300 DPI, A1 is 7016 x 9933 px.
Dimensions and specs
| Millimeters | 594 x 841 mm | |
|---|---|---|
| Centimeters | 59.4 x 84.1 cm | |
| Inches | 23.39 x 33.11 in | |
| 300 DPI pixels | 7016 x 9933 px | |
| Aspect ratio | 1:1.4158 | |
| Standard family | ISO A Series |
Pixels
Pixel dimensions by DPI
| DPI / PPI | Width | Height | Use |
|---|---|---|---|
| 72 DPI | 1684 px | 2384 px | Screen or draft reference density |
| 96 DPI | 2245 px | 3179 px | Screen or draft reference density |
| 150 DPI | 3508 px | 4967 px | Screen or draft reference density |
| 300 DPI | 7016 px | 9933 px | Common high-quality print setup |
| 600 DPI | 14031 px | 19866 px | High-resolution archival or print workflow |
Formula
How to calculate this size
594 mm x 300 PPI = 7,016 px wide.
Use this when the artwork stops at the finished edge.
Add 3 mm per side before calculating pixels when artwork reaches the edge.
Common mistakes
Avoid these a1 paper size problems
A paper size needs a PPI target before pixels mean anything for print.
Portrait and landscape use the same dimensions, but width and height swap in the export.
Paper pages show trim size first; add bleed only when the design prints to the edge.
Calculator
Calculate pixels and bleed
Enter any DPI to calculate the pixel dimensions for this physical size.
Compare
Compare A1 Paper Size
Open a curated comparison or send both sizes into the compare tool with a fragment URL.
- A1 Paper Size
- 594 x 841 mm
- A0
- 841 x 1189 mm
- A1 Paper Size
- 594 x 841 mm
- A2
- 420 x 594 mm
- A1 Paper Size
- 594 x 841 mm
- A4
- 210 x 297 mm
Workflow
Use A1 Paper Size in a finished file
Copy the millimeter, centimeter, or inch dimensions for the selected paper standard.
Use 300 PPI for most sharp print exports, or match the printer requirement.
Multiply inches by PPI, then add bleed only when artwork reaches the trimmed edge.
Related
Related pages and tools
Same branch
Nearby pages
FAQ
Common questions
What is the exact A1 size?
A1 measures 594 x 841 mm, 59.4 x 84.1 cm, or approximately 23.39 x 33.11 in.
What is A1 in pixels at 300 DPI?
A1 at 300 DPI is 7016 x 9933 px when rounded to the nearest whole pixel.
What aspect ratio is A1?
A1 has an aspect ratio of about 1:1.4158 based on its 594 x 841 mm physical dimensions.
Should I add bleed to a A1 design?
For print work, a common starting point is 3 mm bleed on each side, making the document 600 x 847 mm before trimming. Confirm final bleed with your printer.
References
Sources and references
ISO 216 physical dimensions. Pixel values are calculated from millimeters / 25.4 x DPI and rounded to whole pixels.
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ISO 216:2007
Used for ISO A and B series physical paper dimensions.
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W3C CSS Values and Units Module
Used for CSS unit definitions, absolute unit relationships, and CSS px behavior.
Last checked: 2026-05-01