"A" series paper sizes
"A" series paper size format is defined by ISO 216 and is a perhaps the most popular paper size format in the world (with the exception of the US and Canada). The dimensions have an aspect ratio of 1:1.4142, and they double with each size (two A4 sheets form an A3, two A3 sheets form an A2, and so on)
| "A" Size | Millimeters | Inches |
|---|---|---|
| A0 | 841 mm X 1189 mm | 33.1" x 46.8" |
| A1 | 594 mm x 841 mm | 23.4" x 33.1" |
| A2 | 420 mm x 594 mm | 16.5" x 23.4" |
| A3 | 297 mm x 420 mm | 11.7" x 16.5" |
| A4 | 210 mm x 297 mm | 8.3" x 11.7" |
