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Enter the module width in millimetres, how many modules are in the symbol, the quiet zone on each side, and the printer DPI. The result is a planning width, not a GS1 grade.
A common starting X-dimension for a small label is about 0.33 mm. Retail symbols have their own magnification rules.
How to use this tool
- Enter the module width and module count.
- Set the quiet zone and DPI.
- Compare the millimetres with the label.
Practical guidance
A common starting X-dimension for a small label is about 0.33 mm. Retail symbols have their own magnification rules.
Checks before you use the output
Measure a proof with a ruler. Screen pixels and printer pixels are not the same thing.
Questions and answers
What is a module?
The narrow bar width, also called the X-dimension.
How many modules of quiet zone?
EAN and UPC often need about 7 to 11. Code 128 needs a clear margin too. Check the spec you were given.
Does this set the bar height?
No. Height is separate, and too-short bars fail in supermarkets.