IBAN Calculator (USA + International)
Use this tool to validate an IBAN, generate an IBAN from a country code and BBAN, or check U.S. wire details. Note: U.S. bank accounts do not use IBAN.
1) Validate Existing IBAN
2) Generate IBAN from Country + BBAN
3) U.S. Wire Transfer Checker
Why people search for an “IBAN calculator USA”
If you are in the United States and trying to send or receive money internationally, the term IBAN calculator USA can be confusing. Many countries use IBAN (International Bank Account Number), but the U.S. banking system does not assign IBANs to domestic bank accounts.
That does not mean you cannot make international transfers from a U.S. bank. It simply means you use different details:
- Routing number (ABA) for domestic clearing
- Account number
- SWIFT/BIC code for cross-border transfers
- Recipient IBAN (if the destination country uses IBAN)
How this calculator helps
This page combines three practical tools into one:
- IBAN validation: checks structure, country length, and checksum (MOD-97).
- IBAN generation: calculates check digits from country code + BBAN.
- U.S. transfer check: validates ABA routing number checksum and basic account/SWIFT formatting.
Important: the U.S. does not use IBAN
What to provide instead
When someone asks for your “U.S. IBAN,” provide your routing and account number instead. For inbound international wires, add your bank’s SWIFT/BIC code and any intermediary bank details your institution requires.
When IBAN still matters in the U.S.
IBAN matters when your recipient is in a country that uses it (for example, Germany, France, Spain, UK, UAE, and many more). In that case, you validate the recipient’s IBAN before submitting the transfer.
Step-by-step for a U.S. sender paying an international recipient
- Collect recipient’s full legal name and bank country.
- Get recipient IBAN (if required in that country).
- Get recipient bank SWIFT/BIC.
- Use this calculator to validate IBAN format and checksum.
- Confirm fees, FX rate, and cut-off times with your bank.
Common mistakes to avoid
- Trying to “convert” a U.S. routing number directly into an IBAN.
- Typing IBAN with missing characters or wrong country code length.
- Assuming SWIFT and IBAN are the same thing (they are not).
- Ignoring intermediary bank instructions for certain corridors.
FAQ
Can I generate a U.S. IBAN?
No. U.S. accounts do not have IBANs. Use ABA routing + account number + SWIFT/BIC for international wires.
Is IBAN validation enough to guarantee payment success?
No. Validation catches formatting and checksum errors. You still need correct recipient name, bank identifier, and transfer instructions.
Can an IBAN be valid but still fail?
Yes. A structurally valid IBAN can still be closed, restricted, or mismatched with beneficiary details.
Disclaimer: This tool is for informational use and basic pre-checks. Always confirm final payment instructions directly with your bank.