AutoCalculator.org

VIN Check Digit Calculator

The following example VIN Number
may be used to illustrate how to calculate a checkdigit for the 17 digit VIN
code: 1M8GDM9A**?**KP042788, where the question mark
represents the unknown check 'value'.

Step 1: Transliteration consists of removing all of the letters from a Vehicle Identification Number and substituting them with their appropriate numerical counterparts.

These numerical values can be found in the Table below.*I*, *O* and *Q* are must be
excluded,
and can not exist in a valid VIN; for the purpose of this example, they have been
filled in with *N/A* (Not Applicable). Numerical digits use their own values.

Step 1: Transliteration consists of removing all of the letters from a Vehicle Identification Number and substituting them with their appropriate numerical counterparts.

These numerical values can be found in the Table below.

A: 1 |
B: 2 |
C: 3 |
D: 4 |
E: 5 |
F: 6 |
G: 7 |
H: 8 |
N/A |

J: 1 |
K: 2 |
L: 3 |
M: 4 |
N: 5 |
N/A | P: 7 |
N/A | R: 9 |

S: 2 |
T: 3 |
U: 4 |
V: 5 |
W: 6 |
X: 7 |
Y: 8 |
Z: 9 |

Step 2: The following is the weight factor for each position in the VIN. The 9th position
is that of the **VIN Check digit**. It has been substituted with a 0, which will cancel
it out in the multiplication step.

Position | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|

Weight | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 10 | 0 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 |

Step 3: - The following table shows how the products (products = Value x Weight) of a VIN
may be evaluated.

VIN | 1 | M | 8 | G | D | M | 9 | A | ? | K | P | 0 | 4 | 2 | 7 | 8 | 8 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|

Value | 1 | 4 | 8 | 7 | 4 | 4 | 9 | 1 | 0 | 2 | 7 | 0 | 4 | 2 | 7 | 8 | 8 |

Weight | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 10 | 0 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 |

Products | 8 | 28 | 48 | 35 | 16 | 12 | 18 | 10 | 0 | 18 | 56 | 0 | 24 | 10 | 28 | 24 | 16 |

The products (8,28,48,35,16,12,18,10,0,18,56,0,24,10,28,24,16) are all added together to obtain a Sum of 351

**Check digit** = Sum Mod 11

If the check digit value is 10 then this goes back into the VIN Vehicle Identification Number as a character X.

If the check digit value is 10 then this goes back into the VIN Vehicle Identification Number as a character X.

terms of use about sitemap |