How long is a Kuwaiti IBAN?

A Kuwaiti IBAN is exactly 30 characters: the country code KW, two check digits, a 4-letter bank identifier, and a 22-character account number. Any other length is invalid.

Why is the Kuwait bank code letters?

Kuwait uses a 4-letter bank identifier in the IBAN (for example NBOK for National Bank of Kuwait or KFHO for Kuwait Finance House), rather than the numeric codes seen in many European IBANs.

How does the MOD-97 checksum work?

The first four characters (KW plus the check digits) move to the end, each letter expands to a two-digit number (A=10 to Z=35), and the result is divided by 97. The IBAN is valid only when the remainder is 1.

Does validation confirm the account exists?

No. It confirms the format and checksum only. Whether the account is open or who owns it can only be confirmed by the issuing bank.

Yes. The validator runs entirely in your browser. Nothing is uploaded, stored, or logged, so confidential account numbers stay on your device.

Kuwait IBAN Validator

Kuwaiti IBANs route payments through the KNET domestic network and across the Gulf via SWIFT. At 30 characters they include a generous 22-character account field, so there is plenty of room for a typo to slip in. The ISO 7064 MOD-97-10 checksum catches most single-character errors, and this validator runs that check plus a full structural breakdown before you submit a transfer.

Paste any IBAN beginning with KW and the tool validates it locally in your browser.

How it works

A Kuwaiti IBAN has four parts:

Country code — the fixed letters KW
Check digits — two digits from the MOD-97 algorithm
Bank identifier — four letters (for example NBOK, CBKU, KFHO)
Account number — 22 alphanumeric characters

The checksum moves the first four characters to the end, replaces each letter with its two-digit value (A=10 through Z=35), and divides by 97. A remainder of exactly 1 means the IBAN is valid. The modulus is computed digit by digit so the large number never exceeds a safe integer.

Tips and notes

A length other than 30 fails immediately — the most common paste error.
The 4-letter bank identifier is correct for Kuwait, not a mistake.
A valid checksum confirms format only. Use the iban-bic-lookup-tool to derive the matching BIC.