By default, SmartSize applies an automatic conversion to all the values so that customers can choose between centimeters and inches.
If you do not want to covert certain values, for example international sizes (EUR, UK, US) you simply need to add two stars: ** inside the column title.
Example: UK **, EU **, Australia **
This way, the values inside this column will not be converted, and thus, will remain fixed. Note that the two stars: (**) will not be visible to your customers in your final size chart.
You can also remove the conversion cm / inches from the entire table.