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In printing work here, A2 is 594 x 420 mm But I see in card making, A2 tends to be smaller. What is the standard size of A2?

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closed as off topic by davidgo, oKtosiTe, slhck Mar 24 '13 at 9:09

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So you're saying that A2 is... smaller than A2? Either way, I don't think this question really relates to computer hardware or software. –  oKtosiTe Mar 24 '13 at 8:25
    
A2 is the size of four sheets of A4. –  oKtosiTe Mar 24 '13 at 8:30

4 Answers 4

You are talking about two different animals.

A2 Card size (and other A cards sizes) A card size

While standard A size paper (including A2) A paper

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According to Wikipedia, the international standard (ISO 216) confirms your 420 × 594 measure.

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The standard size for A4 is 420 mm × 594 mm (16.54 in × 23.39 in) as you wrote. You can look up all paper sizes here

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A2 size paper is half of A1 (using the long side) which is half again of A0.

A0 is a square meter, with the sides in an aspect ratio of 1:(square root of 2). This aspect ratio is the one that stays the same when dividing over the long side.

So the 420x595mm mentioned in other answers are not some arbitrary numbers. The paper size nicely fits in the metric system.

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