Why this IBAN calculator is better

There exist numerous IBAN calculators on the Web. But we are not aware of any that combine these advantages:

• Correctness: Try, for example, calculating the IBAN for this bank account using some other IBAN calculator: <br>Germany, Comdirect Bank, account number 8301103, bank code 20041133.<br> Most free IBAN calculators are implemented naively enough for calculating an IBAN that ends with ...03. But the correct IBAN for this account ends with ...00.
• <link data_quality>Data updates in regular intervals</link> (for bank codes, check sum algorithms, and BICs).
• free (or <link premium>premium subscription</link> without monthly minimum costs).
• <link disclaimer>correctness guaranteed.</link>