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   Расчет контрольного числа


   GTIN Check Digit Calculator

  ID Key Format
Item Reference
(without check digit)
 
Check
Digit
GTIN
Format
 
  GTIN-8
(Enter 7 digits)
  GTIN-12
(Enter 11 digits)
  GTIN-13
(Enter 12 digits)
  GTIN-14

(Enter 13 digits)

   SSCC Check Digit Calculator

  ID Key Format
Item Reference
(without check digit)
 
Check
Digit
  
  SSCC
(Enter 17 digits)

   How to calculate a check digit manually

  ID Key
   Format

Digit positions

  GTIN-8

 

 

 

 

 

 

 

 

 

 

N1

N2

N3

N4

N5

N6

N7

N8

  GTIN-12

 

 

 

 

 

 

N1

N2

N3

N4

N5

N6

N7

N8

N9

N10

N11

N12

  GTIN-13

 

 

 

 

 

N1

N2

N3

N4

N5

N6

N7

N8

N9

N10

N11

N12

N13

  GTIN-14

 

 

 

 

N1

N2

N3

N4

N5

N6

N7

N8

N9

N10

N11

N12

N13

N14

  SSCC

N1

N2

N3

N4

N5

N6

N7

N8

N9

N10

N11

N12

N13

N14

N15

N16

N17

N18

  Step 1: Multiply value of each position by

 

x3

x1

x3

x1

x3

x1

x3

x1

x3

x1

x3

x1

x3

x1

x3

x1

x3

 

  Step 2: Add results together to create sum

  Step 3: Subtract the sum from nearest equal or higher multiple of ten = Check digit

    The following table gives an example to illustrate how a check digit is calculated:

  Positions

N1

N2

N3

N4

N5

N6

N7

N8

N9

N10

N11

N12

N13

  Number without check digit


6


2


9


1


0


4


1


5


0


0


2


1

-

  Step 1: Multiply

x

x

x

x

x

x

x

x

x

x

x

x

-

   by

1

3

1

3

1

3

1

3

1

3

1

3

-

  Step 2:
  Add results

=

=

=

=

=

=

=

=

=

=

=

=

-

  to create sum

6

6

9

3

0

12

1

15

0

0

2

3

= 57

  Step 3: Subtract the sum from nearest equal or higher multiple of ten = 60- 57 = 3 (check digit)

  Number with check digit

6

2

9

1

0

4

1

5

0

0

2

1

3

Система GS1