SIZE CHART
Posters & Portals refer their paper sizes on the ISO 216 international standard, based on a 1:√2 aspect ratio, which allows for proportional scaling when a sheet is halved. It includes the A series (commonly used for documents) and the B series (for larger formats) The system is widely adopted globally, with the most familiar size being A4.
| Paper | mm | cm | inches |
| A0 | 841 x 1189 mm | 84.1 x 118.9 cm | 33.1 x 46.8 in |
| A1 | 594 x 841 mm | 59.4 x 84.1 cm | 23.4 x 33.1 in |
| A2 | 420 x 594 mm | 42 x 59.4 cm | 16.5 x 23.4 in |
| A3 | 297 x 420 mm | 29.7 x 42 cm | 11.7 x 16.5 in |
| A4 | 210 x 297 mm | 21 x 29.7 cm | 8.3 x 11.7 in |
| A5 | 148.5 x 210 mm | 14.85 x 21cm | 5.8 x 8.3 in |
| A6 | 105 x 148.5 mm | 10.5 x 14.85 cm | 4.1 x 5.8 in |
| A7 | 74 x 105 mm | 7.4 x 10.5 cm | 2.9 x 4.1 in |
| A8 | 52 x 74 mm | 5.2 x 7.4 cm | 2.0 x 2.9 in |
| A9 | 37 x 52 mm | 3.7 x 5.2 cm | 1.5 x 2.0 in |
| A10 | 26 x 37 mm | 2.6 x 3.7 cm | 1.0 x 1.5 in |
| Paper | mm | cm | inches |
| B0 | 1000 x 1414 mm | 100 x 141,4 cm | 39.4 x 55.7 in |
| B1 | 707 x 1000 mm | 70,7 x 100 cm | 27.8 x 39.4 in |
| B2 | 500 x 707 mm | 50 x 70,7 cm | 19.7 x 27.8 in |
| B3 | 353 x 500 mm | 35,3 x 50 cm | 13.9 x 19.7 in |
| B4 | 250 x 353 mm | 25 x 35,3 cm | 9.8 x 13.9 in |
| B5 | 176 x 250 mm | 17,6 x 25 cm | 6.9 x 9.8 in |
| B6 | 125 x 176 mm | 12,5 x 17,6 cm | 4.9 x 6.8 in |
| B7 | 88 x 125 mm | 8,8 x 12,5 cm | 3.5 x 4.9 in |
| B8 | 62 x 88 mm | 6,2 x 8,8 cm | 2.4 x 3.5 in |
| B9 | 44 x 62 mm | 4,4 x 6,2 cm | 1.7 x 2.4 in |
| B10 | 31 x 44 mm | 3,1 x 4,4 cm | 1.2 x 1.7 in |
