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Chile RUT check digit
Paste a RUT with or without dots and hyphen. The tool verifies the check digit (0–9 or K) using the standard módulo 11 weights. Passing format does not prove the RUT is active in the Civil Registry.
How to use
- Enter the RUT (e.g. 12.345.678-5).
- Read OK or check-digit failure.
- Confirm active status with the official registry if required.
What the tool does
Runs the Chilean RUT módulo 11 check digit locally.
What the tool does not do
Does not query Registro Civil or prove tax status.
Tips
- K is a valid check digit — keep it uppercase.
- Dots are optional; the body is 7–8 digits plus DV.
FAQ
- Official registry check?
- No — checksum only.
- Is data uploaded?
- No.
- Is it free?
- Yes.
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