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Check Digit Calculator
GS1

Chilean RUT Check Digit Calculator

Calculate the check character of a Chilean RUT with repeating weights from 2 to 7. Review when the result becomes zero or K.

Last updated:

GS1 & Retail Barcodes

Calculate numeric or K check characters.

Length: 10 chars
Calculated Check Character / Checksum
--Ready
Complete Validated Sequence:
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Arithmetic Steps & Mathematical Specification

Initialising algorithm engine for Chilean RUT Check Digit Calculator...

How Chilean RUT Check Digit Calculator Works?

The Chilean RUT Check Digit Calculator works by multiplying the RUT digits by the repeating weights 2–7 from the right, dividing the sum by 11, and subtracting the remainder from 11. The result 10 becomes K and 11 becomes 0.

  1. 1Enter the RUT body without dots or the verifier.
  2. 2Multiply the rightmost digit by 2, the next by 3, up to 7, then restart at 2.
  3. 3Total the RUT products and divide by 11 to get the remainder.
  4. 4Subtract the remainder from 11.
  5. 5Write 11 as 0 and 10 as K; append the dígito verificador after a hyphen.

Chilean RUT Check Digit Calculator Formula

The RUT formula is DV = 11 − (Σ dᵢ·wᵢ mod 11), with 11 → 0 and 10 → K.

S = Σ dᵢ × wᵢ,  wᵢ = 2,3,4,5,6,7,2,3… from the right
DV = 11 − (S mod 11);  11 → 0;  10 → K
  • DV is the dígito verificador.
Worked example: 30.686.957-?
S = 194
S mod 11 = 7
DV = 4
RUT = 30.686.957-4

Chilean RUT Check Digit Calculator Conversion Table

The RUT conversion table lists sample RUT bodies with their verifier, including K and 0 cases.

RUT bodyWeighted sumS mod 11DVFormatted RUT
306869571947430.686.957-4
123456781386512.345.678-5
111111113210111.111.111-1
7654321126567.654.321-6
760864281496576.086.428-5
10000013121K10.000.013-K

What is Chilean RUT Check Digit Calculator?

A Chilean RUT Check Digit Calculator is a tool that computes the dígito verificador of a Chilean Rol Único Tributario (RUT) or Rol Único Nacional (RUN). The Servicio de Impuestos Internos (SII) uses the RUT as the tax ID for people and companies.

The verifier is a digit 0–9 or the letter K, so about 1 in 11 RUTs ends in K.

What are the uses of Chilean RUT Check Digit Calculator?

There are 3 main uses of the Chilean RUT Check Digit Calculator, including electronic invoices, banking, and online forms.

  • Electronic invoices: SII e-invoices require valid RUTs for issuer and receiver.
  • Banking: Chilean banks check RUTs at account opening.
  • Online forms: Websites validate RUT and RUN fields.