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Australian Owned And Operated
The First Barcode Seller In Australia
Experts In Barcodes, Labels and Images Since 2005
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Barcode Specifications |
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There are official standards about what size a retail barcode should be. If you decide to resize a barcode image we provide, you must take care. If the barcode is made too small or resized incorrectly then it may not be able to be scanned. The size of a barcode is measured in "magnification". The magnification of a barcode can vary from 80% to 200%. Keep in mind that the width can be one percentage and the height another percentage.
Below are the dimensions of a retail barcode produced at 100% magnification. The dimensions are in mm. Note that the total size of the barcode image is 37.29mm x 25.93mm. This includes a white margin (also called a quiet zone) on the left side of the barcode of 3.63mm and on the right side of the barcode of 2.31mm.
Magnification |
Bar Width |
Bar Height |
Left Margin |
Right Margin |
80% |
25.08 |
18.28 |
2.9 |
1.85 |
85% |
26.65 |
19.42 |
3.09 |
1.96 |
90% |
28.22 |
20.57 |
3.27 |
2.08 |
95% |
29.78 |
21.71 |
3.45 |
2.19 |
100% |
31.35 |
22.85 |
3.63 |
2.31 |
105% |
32.92 |
23.99 |
3.81 |
2.43 |
110% |
34.49 |
25.14 |
3.99 |
2.54 |
115% |
36.05 |
26.28 |
4.17 |
2.66 |
120% |
37.62 |
27.42 |
4.36 |
2.77 |
125% |
39.19 |
28.56 |
4.54 |
2.89 |
130% |
40.76 |
29.71 |
4.72 |
3 |
135% |
42.32 |
30.85 |
4.9 |
3.12 |
140% |
43.89 |
31.99 |
5.08 |
3.23 |
145% |
45.46 |
33.13 |
5.26 |
3.35 |
150% |
47.03 |
34.28 |
5.45 |
3.47 |
155% |
48.59 |
35.42 |
5.63 |
3.58 |
160% |
50.16 |
36.56 |
5.81 |
3.7 |
165% |
51.73 |
37.7 |
5.99 |
3.81 |
170% |
53.3 |
38.85 |
6.17 |
3.93 |
175% |
54.86 |
39.99 |
6.35 |
4.04 |
180% |
56.43 |
41.13 |
6.53 |
4.16 |
185% |
58 |
42.27 |
6.72 |
4.27 |
190% |
59.57 |
43.42 |
6.9 |
4.39 |
195% |
61.13 |
44.56 |
7.08 |
4.5 |
200% |
62.7 |
45.7 |
7.26 |
4.62 |
The Bar Width only includes the bars themselves It does not include the left and right margins.
The Bar height is only the height of the bars themselves. It does not include the "human readable" number which must appear below the bars.
The left and right margins (also called the “Quiet Zone”) is white space on either side of the barcode. This space is mandatory because barcode scanners need them in order to read the barcode. In some cases you will see a ">" in the lower right hand corner of the image. This is an option that is used to give a visual indication of the right margin.
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