IBAN Validator

Check an IBAN checksum. It does not prove the account exists.

Calculated Result

Valid checksum

Formula: ISO 13616: rearrange + MOD 97 = 1

About this calculator

Spaces are ignored. Country length is not fully enumerated; a passing checksum can still be a made-up number.

FormulaISO 13616 rearrange + MOD 97 = 1

Move the first four characters to the end, A=10…Z=35, then running MOD 97 equals 1.

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