A0
Dimensions: 841 × 1189 mm (33.11 × 46.81 in)
A0 is a widely used paper size for full-scale technical blueprints, engineering schematics, exhibition posters, advertising banners, and GIS maps. It's part of the ISO 216 standard.
What size is A0 paper?
An A0 piece of paper measures 841 × 1189 mm or 33.11 × 46.81 inches. It is part of the A Paper Sizes standard.
| Units | Width × Height |
|---|---|
| Metric millimeters (mm) | 841 × 1189 mm |
| Metric centimeters (cm) | 84.10 × 118.90 cm |
| Metric meters (m) | 0.841 × 1.189 m |
| Imperial inches (in) | 33.11 × 46.81 in |
| Typographic points (1/72 inch) (pt) | 2383.94 × 3370.39 pt |
| Typographic picas (1/6 inch) (pc) | 198.66 × 280.87 pc |
| Pixels at 300 DPI (px) | 9,933 × 14,043 px |
A0 is part of the a paper sizes standard. The A series traces its standardised dimensions to DIN 476, published in Germany in 1922. Georg Christoph Lichtenberg had described the underlying square-root-of-two aspect-ratio principle in 1786. ISO 216 brought the A and B trimmed-paper formats into an international standard in 1975; numbered A sizes retain approximately the same proportions as each sheet is halved.
Also called: ISO A0, DIN A0, 1 Square Metre Paper.
Quick facts
- Size (mm)841 × 1189 mm
- Size (inches)33.11 × 46.81 in
- Aspect ratio1 : √2 (≈ 1.414)
- StandardISO 216
- Common useFull-scale technical blueprints, engineering schematics, exhibition posters
Compare A0 with other sizes
Uses for A0
A0 is used for full-scale technical blueprints, engineering schematics, exhibition posters, advertising banners, and GIS maps.
- Full-scale technical drawings and CAD plots
- Exhibition posters and presentation boards
- Advertising banners and signage mock-ups
- GIS maps and architectural plans
Loading A0 into a printer
A0 requires a wide-format roll plotter (minimum 36-inch width) or specialized commercial large-format printing services.
A0 at common DPI
Pixel dimensions for A0 at popular resolutions. Rounded to whole pixels; physical sheet remains 841 × 1189 mm.
| DPI | Width (px) | Height (px) |
|---|---|---|
| 72 | 2,384 | 3,370 |
| 96 | 3,179 | 4,494 |
| 150 | 4,967 | 7,022 |
| 300 | 9,933 | 14,043 |
| 600 | 19,866 | 28,087 |
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841 × 1189 mm (33.11 × 46.81 in)