A0 Paper Size
A0 is the largest standard ISO 216 paper size, measuring 841 × 1189 mm. It's the root of the A-series — every smaller size is half of A0. At 300 DPI, the canvas is 9933 × 14043 px. Used for trade show backdrops, exhibition graphics, and architectural floor plans where maximum surface area is required.
Specifications
| Pixels | 9933 × 14043 px (at 300 DPI) |
| Millimetres | 841 × 1189 mm |
| Centimetres | 84.1 × 118.9 cm |
| Inches | 33.11 × 46.81 in |
| Aspect ratio | 1:1.414 |
| Colour mode | CMYK |
| Bleed | 5 mm |
| Safe zone | 10 mm from trim |
A0 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 | 2,384 | 3,370 | Screen preview, PDF viewers |
| 96 | 3,179 | 4,494 | Windows screen standard, digital documents |
| 150 | 4,967 | 7,022 | Medium-quality print, home printers |
| 300 | 9,933 | 14,043 | Professional print, commercial offset |
Design Tips
- →Always design at 300 DPI (9933 × 14043 px) — A0 is typically viewed from 2–4 metres, so headline type needs to be 80 pt minimum to remain legible.
- →Set up with 5 mm bleed on all four sides; most large-format printers require it for edge-to-edge output.
- →Deliver files as PDF/X-1a or PDF/X-4 with embedded CMYK profiles — large-format RIP software can't reliably convert RGB at this scale.
- →Keep the file below 500 MB by flattening layers before export; rasterised A0 files at 300 DPI can exceed 1 GB uncompressed.
Create A0 designs with Playyy
Set a custom canvas to 9933 × 14043 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 A0 paper size in mm?+
A0 is 841 × 1189 mm. It's the base size of the ISO 216 A-series — all other A sizes (A1, A2, A3, A4) are derived by halving A0 repeatedly along the long edge, each time maintaining the 1:√2 aspect ratio.
What is A0 in pixels at 300 DPI?+
A0 at 300 DPI is 9933 × 14043 pixels. At 150 DPI it's 4961 × 7021 px. At 96 DPI it's 3178 × 4494 px. Always use 300 DPI for professional large-format print — lower resolutions produce visible pixelation on an A0 sheet viewed at normal exhibition distance.
What is A0 paper used for?+
A0 is used for exhibition stands, trade show graphics, architectural drawings, engineering plans, and large retail window posters. It's the largest everyday print format — anything bigger (A-1 class banner roll) is typically sold by the metre.
How big is A0 compared to A4?+
A0 is 16 times the area of A4. Folding an A0 sheet in half four times produces an A4 sheet. In dimensions: A0 is 841 × 1189 mm; A4 is 210 × 297 mm.