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Table of Contents
ISO A SERIES (mm)
 | A0 | 841 x 1189 |
| A1 | 594 x 841 | |
| A2 | 420 x 594 | |
| A3 | 297 x 420 | |
| A4 | 210 x 297 | |
| A5 | 148 x 210 | |
| A6 | 105 x 148 | |
| A7 | 74 x 105 | |
| A8 | 52 x 74 | |
| A9 | 37 x 52 | |
| A10 | 26 x 37 |
- Area of A0 = 1m^2
- A0/A1 = A1/A2 = A2/A3 = A3/A4 … A9/A10 = 2
- Length = √2 * Width
ISO B SERIES (mm)
 svg | B0 | 1000 x 1414 |
| B1 | 707 x 1000 | |
| B2 | 500 x 707 | |
| B3 | 353 x 500 | |
| B4 | 250 x 353 | |
| B5 | 176 x 250 | |
| B6 | 125 x 176 | |
| B7 | 88 x 125 | |
| B8 | 62 x 88 | |
| B9 | 44 x 62 | |
| B10 | 31 x 44 |
The area of B series sheets is the geometric mean of successive A series sheets. B1 is between A0 and A1 in size, with an area of 0.707 m2 (1⁄√2 m2). As a result, B0 is 1 metre wide, and other sizes of the series are a half, a quarter or further fractions of a metre wide.
- B5 is a relatively common choice for books
- B7 is equal to the passport size ID-3 from ISO/IEC 7810
US (inches)
Non-ISO
otherwise, from JIS to Double elephant via Duodecimo et Coquille → https://en.wikipedia.org/wiki/Paper_size
approximately otherwise →
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