How big in centimeters are the dimensions for A1 sized paper?
Here’s how to work it out: First, the paper size is based on A0 which is 1 square metre; then you halve the size of the paper sheet according to the number which follows the ‘A’ (thus A4 is one sixteenth of a square metre, and A6 is one 64th). The ratio of length to width is always (Root 2) to 1, and the rest is relatively straightforward. The paper size you are looking at is A1, so this covers one half of a square metre, i.e. 5000 square centimetres. Width x length = 5000 (measuring centimetres), and length = width x root 2 (c. 1.414), so root 2 multiplied by the square of the width = 5000. If you divide 5000 by root 2 to give approx. 3535.534, then take the square root to give around 59.46, this is the width of the sheet in centimetres. Multiply this by root 2 to give the length of around 84.09 centimetres. The dimensions of a sheet of A1 paper are thus 59.46 x 84.09 cm. Nice question, thanks very much.
