5 ms·
A4 paper is precisely 210x297mm (according to the standard), so the aspect ratio deviates from 1:sqrt(2) a little. Following that aspect ratio, the size would b
by DominikPeters 4y ago
A4 paper is precisely 210x297mm (according to the standard), so the aspect ratio deviates from 1:sqrt(2) a little. Following that aspect ratio, the size would be 210x296.985..mm, so the rounding is really very slight.
- jwilk 4y agoHow exactly is it defined in the standard? Is there a formula? Or just a list of sizes for A0, A1, etc.? I wanted to read the standard myself, but CHF 58 is a bit too much: https://www.iso.org/standard/36631.html https://www.iso.org/standard/36631.html
- justsomehnguy 4y agoy : x = √2 : 1 = 1,414 http://www.ikserang.com/qa/ISO_PAPER_BOARD/standards/en/iso_216_2007.pdf http://www.ikserang.com/qa/ISO_PAPER_BOARD/standards/en/iso_...
- DominikPeters 4y agoThis seems to be a sample containing the relevant parts. https://cdn.standards.iteh.ai/samples/36631/c0883203ea25445c9992bb09343620c5/ISO-216-2007.pdf https://cdn.standards.iteh.ai/samples/36631/c0883203ea25445c...