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The last digit of a barcode number is a computer check digit which makes sure the barcode is correctly composed. Use our check digit calculator below to calculate a check digit.
Use GS1's UPC check digit calculator to confirm the integrity of your barcode number.
Calculate the check digit for any 12, 13, 14 digit GTIN and SSCC barcodes. Correct check digit ensures readability and decodability.
Calculate your UPC, EAN or SCC-14 code check digit! It’s a simple 5-step algorithm for check digit calculation at Simply Barcodes. Click here!
A 100% free barcode check digit calculator and validator. Simple to use. Free for life. ️Generate Barcode Check Digits ️Validate Barcodes ️Single barcode and bulk mode
Calculated from the preceding numbers, the last digit of a barcode is the “check digit.” The free calculator will determine the correct check digit for all forms of GTIN identification. GS1 barcode compliance doesn’t have to be as hard as reading the 534 page GS1 General Specifications.
What is the Check Digit? This is the final digit that is calculated from the other digits of some GS1 Identification keys, including the GTIN-12 and GTIN-14. This digit is used to check that the data has been correctly composed.
A step by step algorithm with examples of 1 number without the check digit, the calculations and end result the number with the check digit. Step 1: Multiply, Step 2: Add, and Step 3 Subtract.
The Check Digit is the smallest number needed to round the result of Step Five up to the nearest multiple of 10. In this example, the Check Digit is 0.
How to calculate a barcode. A barcode is calculated by calculating the last digit (known as check digit) from the other digits. Input is without check-digit: 0 4 9 0 0 0 0 8 1 3 8. Add all of the digits in the odd positions (starting from the left) 0 + 9 + 0 + 0 + 1 + 8 = 18. Multiply the sum by 3. 18 x 3 = 54.