🇨🇱 RUT Validator
Validate a Chilean RUT or compute its check digit with the official modulo 11 algorithm.
Frequently asked questions
How is the RUT check digit computed?
Digits are multiplied right-to-left by the repeating series 2-3-4-5-6-7, summed, divided by 11 and subtracted from 11: 11→0, 10→K.
What does a K digit mean?
It is the value 10 of modulo 11, represented by the letter K. It is as valid as any number.
Does the dots-and-dash format matter?
Not for the computation: you can write 12.345.678-5 or 123456785. This tool accepts both.