Calculations & Conversions

How to Estimate the Weight of a Roll of Paper

To find the approximate weight of a roll, multiply roll diameter squared minus core diameter squared by roll width and appropriate factor.

Online Calculation
Roll Diameter (inches):
Core Diameter (inches):
Roll Width (inches):
Factor:

Estimated RollWeight: lbs.


Factor Chart
Antique .018 Tag and Index .026
Vellum Offset .020 C1S .030
Bond .021 C2S Cover .033
Smooth Offset .022 C1S Cover & Blanks .030
Vellum Bristol-Cover .022    


Formula
FORMULA: (Roll Diameter Squared - Core Diameter Squared) x Roll Width x Factor = Approx. Roll Weight


Example

Find the weight of a roll of forms bond paper with a roll diameter of 40 inches, a core diameter of 3 inches, and a roll width of 17.5 inches.

EXAMPLE: [(40x40) - (3x3)] x 35 x .022 = 1225.07 lbs.
Note: .021 is the appropriate factor for forms bond paper.

TO OUR VISITORS: The results of the Interactive Calculations System are estimates and are not guaranteed by International Paper.