Dimensionless Numbers

These numbers have a quantity of one and can not be measured on a scale of physical units.  It is a pure number, thus always having a dimension of 1. The number does not change even if the number system you are working in does.  Dimensionless numbers are used in engineering, mathematics, physics and economics.

Nomenclature & Symbols for Engineering, Mathematics, and Scienceor 

Display #
Weber Number