Online Services Inquiry IID Download Bank Master System Status IBAN Calculator Products & Services Banking Services Interbank Clearing Online Services IBAN Calculator IBAN Calculator for Switzerland IBAN is the acronym for International Bank Account Number, a payment transactions standard used in Switzerland and throughout Europe. Calculate proprietary Swiss or Liechtenstein bank account numbers to IBAN format quickly and easily here – with the IBAN calculator or with the IBAN tool. IBAN Calculator Where to find my IID?Here you can quickly and easily find your IID. IBAN Tool for Companies The electronic tool is most suitable for companies to calculate the IBANs of proprietary Swiss and Liechtenstein bank account numbers. Software IBAN-Tool for Windows (32 and 64 bits), (Rel. 40.1) 14.12.2021 IBAN-Tool for Java, (Rel. 40.1) 14.12.2021 Hash values for version check Documentation IBAN tool: Installation guide (Version 40.1) 14.12.2021 (German) Quick reference guide for the application's installation IBAN calculation using the IBAN tool: interface description (German)