Button Size chart
'Ligne' (pronounced line in English) is the traditional unit of measure for measuring buttons, it dates back to the 9th Century and was first used by German button manufacturers. If you want to convert Ligne to mm, use the following conversion, 1L=0.635mm
Have a look at the table below for handy conversion of button sizes into millimeters.
For a True to Size chart of buttons, please download the chart here.