Chose the format you want
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A0 | A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 |
|---|---|---|---|---|---|---|---|---|---|---|---|
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B0 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 |
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C0 | C1 | C2 | C3 | C4 | C5 | C6 | C7 | C8 | C9 | C10 |
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DL | letter | legal |
|---|
Paper formats
A series of paper sizes is defined by ISO 2016.
The height divided by the width of all formats
of A, B and C series is the square root of two (1.4142)
| Most popular: | A4 | A0 | DL | B1 |
Interesting facts
- Format A0 has an area of one square meter.
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Format A1 is A0 cut into two equal pieces.
In other words, the height of A1 is the width of A0. - Dimensions of B formats are geometric mean of two intermediate A dimensions. Dimensions of B2 sides are geometric mean of A2 and A1 sides.
- Dimensions of C format are geometric mean of appropriate A and B dimensions, i.e. C2 format is geometric mean of A2 and B2.
Series of C formats is mainly intended for envelopes.
Their numbering indicates what type of paper of A format can be put in a given envelope without folding, for example, A4 paper fits the C4 envelope without folding.
