Portugal IBAN Calculator

Enter a Portuguese bank code and account number to generate a correctly formatted PT IBAN — right length, valid check digits, instantly in your browser.

Calculate a Portuguese IBAN

Every Portuguese IBAN starts with PT and two check digits, followed by a 4-character bank code and the account number — 25 characters in total.

Enter the local details below. The calculator pads the account number, computes the ISO 7064 check digits, and prints the result in standard four-character groups.

PT IBAN format

A Portuguese IBAN packs the whole routing path into one string: PT, two check digits, the 4-character bank code, and a 11-character account section.

In the printed format, k marks the check digits, b the bank code, s the branch, c the account number, and x a national check character.

IBAN length
25 characters
Bank code
4 characters
Account number
Up to 11 characters
Check digits
2 digits after PT
Printed format
PTkk bbbb ssss cccc cccc cccx x
Example IBAN
PT50 0002 0123 1234 5678 9015 4

Frequently asked questions

  • A Portuguese IBAN is 25 characters: the country code PT, two check digits, a 4-character bank code, and the account section. Printed in groups of four, it looks like PT50 0002 0123 1234 5678 9015 4.

  • With the ISO 7064 mod 97-10 algorithm. The bank code, account number, and country code are converted to digits, and the two check digits are chosen so the full number leaves a remainder of 1 when divided by 97. The calculator does this for you and rejects any input that cannot produce a valid PT IBAN.

  • Yes. It runs entirely in your browser — the bank details you enter are never sent to a server, stored, or shared. There is no sign-up and no fee.

  • Yes — the calculator covers 41 countries. Pick a different country in the form above, or open its dedicated page from the list below.

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