Enter the basic paper area (in^2) and the weight per unit area of the paper (lb/in^2) into the Basis Weight Calculator. The calculator will evaluate the Basis Weight. 

Basis Weight Formula

The following two example problems outline the steps and information needed to calculate the Basis Weight.

BSW = BA * WPA

Variables:

  • BSW is the Basis Weight (lb)
  • BA is the basic paper area (in^2) 
  • WPA is the weight per unit area of the paper (lb/in^2) 

To calculate the basis weight, multiply the basic paper area by the weight per unit area.

How to Calculate Basis Weight?

The following steps outline how to calculate the Basis Weight.

  1. First, determine the basic paper area (in^2). 
  2. Next, determine the weight per unit area of the paper (lb/in^2). 
  3. Next, gather the formula from above = BSW = BA * WPA.
  4. Finally, calculate the Basis Weight.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

basic paper area (in^2) = 30

weight per unit area of the paper (lb/in^2) = .020

BSW = BA * WPA = ?