BBAN to IBAN converter help


Settings Remark
Check2 / Account no / Check3 Enter the second part of the BBAN (check2 + account number + check 3) in this order.
If the second part has leading zeros, you may leave them out (00006535500)

The first part of a BBAN may consist of three components:
  • Check 1
  • Bank id
  • Branch id
The seconds part of the BBAN may consist of three components:
  • Check 2
  • Account number
  • Check 3
Example:
A Hungarian BBAN looks like:

1
1
7
7
3
0
1
6
1
1
1
1
1
0
1
8
0
0
0
0
0
0
0
0


where:
  • Check 1
    Is not used.

  • Bank id (3!n)
    The first 3 numeric characters represents the "bank id".
    For example: 117

  • Branch id (4!n)
    The next 4 numeric characters represents the "branch id".
    For example: 7301

  • Check 2 (1!n)
    The next numeric character represents the "check 2" digit.
    For example: 6

  • Account number (15!n)
    The next 15 numeric characters represents the "account number".
    For example: 111110180000000

  • Check 3 (1!n)
    The next numeric character represents the "check 3" digit.
    For example: 0
In the example above, the BBAN second part is represented by: 61111101800000000

Notes:
  • A complete BBAN has up to 30 alphanumeric characters: 0-9, A-Z, a-z.
  • Spaces and tabs are ignored.
  • This tools also checks if dutch back account numbers are eleven proof.