A0 Paper Size in mm, Inches and Points
A0 is 841 x 1189 mm (33.11 x 46.81 in, 2384 x 3370 pt). Large posters, architectural plans and engineering drawings. A0 has an area of exactly one square metre, which is where the whole A series starts.
| Unit | Width | Height |
|---|---|---|
| Millimetres | 841 mm | 1189 mm |
| Centimetres | 84.1 cm | 118.9 cm |
| Inches | 33.11 in | 46.81 in |
| Points (PDF) | 2383.94 pt | 3370.39 pt |
| Pixels at 96 dpi | 3179 px | 4494 px |
The sides are in the ratio 1 : 1.414 (the square root of 2), which is why folding or cutting an A-series sheet in half keeps its shape. Area: 0.9999 m². Landscape: 1189 x 841 mm.
A0 in pixels at different resolutions
| Resolution | Size |
|---|---|
| 72 dpi | 2384 x 3370 px |
| 96 dpi | 3179 x 4494 px |
| 150 dpi | 4967 x 7022 px |
| 300 dpi | 9933 x 14043 px |
| 600 dpi | 19866 x 28087 px |
How to check a PDF really is A0
- Open the file in PdfRuler. It runs in your browser and nothing is uploaded.
- Read the page size in the status bar and set the unit to mm. It should read 841 x 1189 mm.
- A PDF that says 2384 x 3370 pt is the same sheet rounded to whole points, so mm may differ by a fraction. That is normal; see what a PDF point is.
Printing it? Check your printer does not rescale the page with the print at actual size test sheet.
Related sizes
- Next smaller: A1 (594 x 841 mm), half the area.
Frequently asked questions
What is the size of A0 in mm?
A0 is 841 x 1189 mm (33.11 x 46.81 in) in portrait.
How many pixels is A0?
At 96 dpi, the size of a CSS pixel on screen, A0 is 3179 x 4494 px. At 300 dpi, a common print resolution, it is 9933 x 14043 px.
What is A0 in points (the PDF unit)?
A0 is 2383.94 x 3370.39 pt, usually rounded to 2384 x 3370 pt. One point is 1/72 of an inch, and PDF page sizes are stored in points.
