Česká národní banka


CNB > Payments > IBAN > How to enter an account number into the calculator

How to enter an account number into the calculator

A Czech-format account number consists of two parts divided by a hyphen. The first part is optional.

Two-part account number in Czech format: 19-123457/0710 

iban_img_1

Account number in Czech format without first part: 123457/0710

iban_img_2 

The IBAN will appear when you click IBAN.

iban_img_3 

The IBAN is CZ49 0710 0000 0000 0012 3457.

How to test whether an IBAN is correct and to display it in Czech format

iban_img_4

Test the correctness by clicking TEST. If the number is formally correct, the calculator will also display the account number in Czech format.

iban_img_5

Clear the calculator by clicking RESET.

Please send any questions regarding this issue to iban.info@cnb.cz.

A calculator for the Slovak Republic is available at
http://www.nbs.sk/sk/platobne-systemy/iban/vypocet-iban-pre-sr,
a calculator for other countries is available at
http://www.ibancalculator.com/