IBAN Validator
Check an IBAN checksum (ISO 13616 / mod-97). Does not contact a bank.
ResultValid checksumGB82 WEST 1234 5698 7654 32
- Country: GB (expected 22 chars)
- Length: 22 ok
- ISO 7064 mod-97: 1 (must be 1)
Rearrange: move the first four characters to the end, A=10 … Z=35, then remainder mod 97 must be 1.