Turkish Identity Number Validator
11-digit T.C. Kimlik No
Enter an existing number for a local structural check. Spaces and hyphens are ignored, and the number is not sent to this site.
Use this validator to check the local format rules of an existing 11-digit Turkish Republic Identity Number. The calculation stays in your browser and does not contact an authority.
A T.C. Kimlik No has 11 digits and its first digit cannot be zero. This tool applies the common local control-digit rules to an entered value. For the first nine digits, let the odd-position total be digits 1, 3, 5, 7 and 9, and the even-position total be digits 2, 4, 6 and 8. The expected tenth digit is (odd total × 7 − even total) mod 10. The expected eleventh digit is the sum of the first ten digits mod 10.
A compatible result only means those structural rules agree with the digits entered. It does not identify a person, prove that a number was issued, verify citizenship or residence, confirm a record, establish ownership, or decide any right, benefit or eligibility.
Official verification is a different service
Türkiye’s official NVİ identity-verification page asks for the identity number together with name and birth-date fields. This page never sends the number, never asks for those additional personal details and never contacts the NVİ service on your behalf. Use the official service only when you are authorized to make that verification.
Privacy and limits
The number stays in this browser session. It is not put in the page address or sent to our servers. Do not enter another person’s identity number on a shared device, and do not treat this local arithmetic check as identity verification.
This tool does not generate numbers, retrieve personal data, validate foreign identity numbers, or replace a government process.
Source
- NVİ: official T.C. Kimlik No verification service shows the additional personal fields used for an official verification request.
Frequently Asked Questions
No. It only means the entered digits are structurally compatible with the local checksum rules. No registry or identity lookup is made.
No. This page cannot confirm any personal, legal or official status.
No. The calculation runs in the browser session and the number is not included in the URL or a requests to our servers.
No. It only checks a number that you enter and never creates identifiers.
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