Frequently Asked Questions.
Is A1 a poster size?
The A1 paper size is very slightly smaller than the standard large poster dimensions. Specifically, it is at 59.5 x 84.1 cm (23.4 x 33.1 inches), compared to the larger international poster size of 61 x 91 cm (24 x 35.8 inches) - which is the most common size for promotional and commercial posters. In everyday practice however, A1 can and does prove useful for posters and banners.
H3: Is A1 or A4 bigger?
A1 paper is far bigger than A4 paper. In fact, you can fit exactly eight A4 pages into a single piece of A1! The size of A1 paper is 59.5 x 84.1 cm (23.4 x 33.1 inches), whereas the size of A4 paper is 21 x 29.7 cm (8.3 x 11.7 inches).
H3: Is A1 the biggest paper format?
A1 paper is actually the second biggest paper format in the A series, behind A0 which is 84.1 x 118.9 cm (33.1 x 46.8 inches). Out of all the paper sizes in the ISO standard, B0 is the biggest format overall - with dimensions of 100 x 141 cm (39.4 x 55.7 inches).