How to measure a paper roll

We need four parameters to describe a paper roll size: Width, Diameter, Length, and Core. And the paper roll sizes can be described in:

  • Width x Diameter x Core
  • Width x Length x Core

Some examples are:

  • For the paper roll size 80mm x 70mm x 13mm, the 80mm stands for paper width, the 70mm stands for paper roll diameter, and the 13mm stands for the core size.
  • For the poplar paper roll size 3 1/8″ x 230′ x 7/16″ in American countries, the paper roll width is 3 1/8″, the paper length is 230′, and the core size is 7/16″.

You can read this article to learn more explanation about paper roll sizes. And if you want to know the mathematical relationship between a paper roll’s diameter and length, you can check this link.