San Marino IBAN Calculator

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

Calculate a San Marino IBAN

Every San Marino IBAN starts with SM and two check digits, followed by a 5-character bank code and the account number — 27 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.

SM IBAN format

A San Marino IBAN packs the whole routing path into one string: SM, two check digits, the 5-character bank code, and a 12-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
27 characters
Bank code
5 characters
Account number
Up to 12 characters
Check digits
2 digits after SM
Printed format
SMkk xbbb bbss sssc cccc cccc ccc
Example IBAN
SM86 U032 2509 8000 0000 0270 100

Frequently asked questions

  • A San Marino IBAN is 27 characters: the country code SM, two check digits, a 5-character bank code, and the account section. Printed in groups of four, it looks like SM86 U032 2509 8000 0000 0270 100.

  • 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 SM 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.

Calculate an IBAN by country