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This is one of those USA-vs-everyone-else things. If you grew up in the USA you're used to quoting paper size in inches. If you grew up anywhere else, you're
by jacques_chester 11y ago
This is one of those USA-vs-everyone-else things.
If you grew up in the USA you're used to quoting paper size in inches.
If you grew up anywhere else, you're familiar with at least A4 and A3 sizes from the ISO 216 standard.
In case you're wondering, ISO 216 series of paper sizes begins with A0, which is exactly 1 square metre in area with an aspect ratio of 1:√2.
The square root of 2 comes about because you produce A1 by cutting or folding A0 along the longest edge. A2 is produced by halving A1, A3 by halving A2 and so on down to A8.
- SyneRyder 11y ago> This is one of those USA-vs-everyone-else things. I don't think it's quite that simple. I was recently with a European friend who had ordered some prints, and she told the front counter she'd ordered A3 size. She knew that the prints she wanted were much smaller than a regular A4 page, and of course 3 is a smaller number than 4, so logically her small prints must be 'A3' size...