| Country | Length | Examples of IBAN |
| Andorra | 24 | AD12 0001 2030 2253 5910 0100 |
| Austria | 20 | AT61 1904 3002 3547 3201 |
| Belgium | 16 | BE68 5390 0754 7304 |
| Cyprus | 28 | CY17 0020 0128 0550 0012 0052 7600 |
| Czech Republic | 24 | CZ65 0800 0000 1290 0014 5399 |
| Denmark | 18 | DK50 0040 0440 1602 43 |
| Estonia | 20 | EE38 2200 5610 2014 5685 |
| Finland | 18 | FI21 1234 5550 0007 85 |
| France | 27 | FR14 2004 9810 0505 0001 3M02 606 |
| Germany | 22 | DE89 3704 5244 0532 0130 00 |
| Gibraltar | 23 | GI75 NWBK 0520 0000 7099 453 |
| Greece | 27 | GR16 0110 1250 0650 0001 2300 695 |
| Hungary | 28 | HU42 1177 3016 1891 1018 0000 0000 |
| Iceland | 26 | IS14 0159 2600 7665 5510 7303 39 |
| Ireland | 22 | IE29 AIBK 9311 5892 3456 78 |
| Italy | 27 | IT60 X054 2811 1250 0000 0123 456 |
| Latvia | 21 | LV80 BANK 0320 4351 9500 1 |
| Lithuania | 20 | LT12 1000 0111 0100 1000 |
| Luxembourg | 20 | LU28 0019 4006 4475 0000 |
| Netherlands | 18 | NL91 ABNA 0417 1643 00 |
| Norway | 15 | NO93 8601 1117 947 |
| Poland | 28 | PL27 1140 2004 0000 3002 0135 5387 |
| Portugal | 25 | PT50 0002 0123 1234 5678 9015 4 |
| Slovak Republic | 24 | SK31 1200 0000 1987 4263 7541 |
| Slovenia | 19 | SI56 1910 0000 0123 438 |
| Spain | 24 | ES80 2310 0001 1800 0001 2345 |
| Sweden | 24 | SE35 5000 0000 0549 1000 0003 |
| Switzerland | 21 | CH39 0070 0115 2018 4917 3 |
| United Kingdom | 22 | GB29 NWBK 6016 1331 9268 19 |
