How to measure a paper roll?
Paper rolls are measured by its width, outer diameter and inner diameter.
For example, a thermal paper roll of 80mm x 80mm x 12mm means:
The width of the paper roll is 80mm;
The outer diameter of the paper roll is 80mm;
The inner core of the paper roll is 12mm.
![](http://cdn.shopify.com/s/files/1/0081/9727/5706/files/measure_paper_large.jpg?v=1535532024)