At 300 DPI, A0 needs about 9933×14043 px (portrait). At 150 DPI, about 4967×7022 px.
Why DPI changes the pixel count
Pixels = paper inches × DPI. Doubling DPI roughly doubles each side and quadruples total megapixels.
Portrait vs landscape
Swap width and height for landscape. Bleed and trim may require a few extra millimeters of image.
Pixels needed by DPI
| DPI | Pixels |
|---|---|
| 72 | 2384 × 3370 |
| 100 | 3311 × 4681 |
| 150 | 4967 × 7022 |
| 200 | 6622 × 9362 |
| 240 | 7946 × 11235 |
| 300 | 9933 × 14043 |
| 600 | 19866 × 28087 |
FAQ
How many pixels for A0 at 300 DPI?
About 9933×14043 px in portrait orientation.