The biggest standard paper size in the A series is A0 , which measures 841 mm by 1189 mm (33.1 inches by 46.8 inches) and has an area of 1 square meter. This size is commonly used for large posters, banners, and displays.
Details on Largest Standard Paper Sizes
- A0 size : 841 mm × 1189 mm (84.1 cm × 118.9 cm), roughly 33.1 in × 46.8 in.
- It is the largest in the international ISO 216 standard, and other sizes like A1, A2, A3 are derived from halving A0.
- Used mainly for large-format printing such as architectural drawings, posters, and banners.
In the North American traditional paper sizes, the largest common sizes are smaller than A0, for example:
- Tabloid size : 11 in × 17 in (about 279 mm × 432 mm),
- Legal size : 8.5 in × 14 in,
- Letter size : 8.5 in × 11 in, which are much smaller than A0.
Thus, the largest widely recognized general paper size is A0 in the ISO A series system.
