A1 Paper Size
A1 is 594 × 841 mm — half the area of A0 and twice the area of A2. At 300 DPI it's 7016 × 9933 pixels. It's the standard size for outdoor event posters, retail window displays, and large conference room signage. Readable from 4–6 metres with 60 pt or larger headline type.
Specifications
| Pixels | 7016 × 9933 px (at 300 DPI) |
| Millimetres | 594 × 841 mm |
| Centimetres | 59.4 × 84.1 cm |
| Inches | 23.39 × 33.11 in |
| Aspect ratio | 1:1.414 |
| Colour mode | CMYK |
| Bleed | 5 mm |
| Safe zone | 10 mm from trim |
A1 in Pixels at Different DPI
The pixel count changes with DPI setting — choose the right one for your output.
| DPI | Width (px) | Height (px) | Use |
|---|---|---|---|
| 72 | 1,684 | 2,384 | Screen preview, PDF viewers |
| 96 | 2,245 | 3,179 | Windows screen standard, digital documents |
| 150 | 3,508 | 4,967 | Medium-quality print, home printers |
| 300 | 7,016 | 9,933 | Professional print, commercial offset |
Design Tips
- →Design at 300 DPI (7016 × 9933 px) for commercial print output — at A1 scale, 150 DPI shows grain on photographic content viewed close-up.
- →Headline type should be at least 60 pt to read from 5 metres. Body copy below 24 pt becomes unreadable at typical poster viewing distance.
- →For outdoor use, specify weatherproof lamination (gloss or matt) in the print brief — standard paper-based A1 warps in humidity.
- →Keep critical content within 20 mm of the trim edge as a safe zone; use 5 mm bleed for all edge-to-edge artwork.
Create A1 designs with Playyy
Set a custom canvas to 7016 × 9933 px, generate visuals from a text prompt, and export at the right dimensions — no design software needed.
Start designing free →Frequently Asked Questions
What is A1 paper size in cm?+
A1 is 59.4 × 84.1 cm (594 × 841 mm). It's half the area of an A0 sheet and twice the area of an A2 sheet. Like all ISO 216 sizes, it has a 1:√2 (approximately 1:1.414) aspect ratio.
What is A1 in pixels at 300 DPI?+
A1 at 300 DPI is 7016 × 9933 pixels. At 150 DPI it's 3508 × 4961 px. At 96 DPI it's 2245 × 3177 px. Use 300 DPI for professional print; 96 DPI is sufficient for digital-only documents.
What is A1 paper size in inches?+
A1 is 23.39 × 33.11 inches. This makes it comparable to the US 24×36 inch large-format poster (the US equivalent for outdoor and lobby signage). A1 is 0.61 inches narrower and 0.89 inches shorter than the US 24×36.
Is A1 a standard poster size?+
Yes. A1 (594 × 841 mm) is the international standard for large indoor event posters, window displays, and lobby graphics. In the US, the closest equivalent is the 24×36 inch poster. Both are suited for viewing from 3–5 metres.