A0 Format | A0 Paper Size & Uses | A-Series Paper | Adobe
https://www.adobe.com/uk/creativecloud/design/discover/a0-format.html
WEBA0 paper dimensions. The A0 paper size is 841 mm x 1189 mm, 84.1 cm x 118.9 cm or 33.1 inches x 46.8 inches. Due to its large size, A0 is often popular for outdoor promotions, banners and displays. One sheet of size A0 paper is the same as: two sheets of A1. four sheets of A2. eight sheets of A3. 16 sheets of A4 and so on.
DA: 67 PA: 90 MOZ Rank: 97