Rekenbox · Checks
IBAN format and checksum checker
Check country code, length and checksum.Clarity for your records
Save on this device for free
Understand your result
How this tool works
An IBAN contains a country code, check digits and account details. The tool checks the supported format and checksum. This can reveal typing errors, but a valid format does not prove that the account exists or belongs to the intended recipient.
Common questions
Can I look up the account holder’s name here?
No. Rekenbox does not query banks or perform a name/IBAN check. Use your bank’s verification when preparing a payment.
Does a paid report make this check more extensive?
No. It records the same result without adding ownership or existence checks. Free is sufficient for a single format check.
Which details do you need?
- IBAN
Limits of this tool
- Checks format and checksum. Does not confirm account ownership or existence.
Year: 2026 · Version 2026.1
Prepared by the Rekenbox product team at Winstwaker. The listed source references and calculation version make the method traceable. Report a content error Last updated: 2026-09-04. Rekenbox is a product by Winstwaker. The tool applies a calculation model to your inputs; a result or paid report is not a personal assessment by an adviser.