Paper Reel Weight Calculator

Paper Reel Weight Calculator calculator can be used to calculate the weight of a paper reel based on its dimensions and paper density.

Input Parameters

Calculation Results

Calculation Formula

Weight = π * (R_outer² - R_inner²) * Thickness

Where:
π = 3.14159
R_outer = Outer Diameter / 2
R_inner = Inner Diameter / 2
Thickness = Paper Thickness in g/cm²

Paper Reel Weight Calculator Calculator Usage Guide

Learn how to use the Paper Reel Weight Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the Outer Diameter of the paper reel in centimeters (cm).
  2. Enter the Inner Diameter of the paper reel in centimeters (cm).
  3. Enter the Thickness of the paper in grams per square centimeter (g/cm²).
  4. Click the Calculate button to compute the weight of the paper reel.
  5. The calculated weight will be displayed in grams (g).

Working Principle

The calculator uses the formula:

Weight = π * (R_outer² - R_inner²) * Thickness

Where:

  • π is the mathematical constant Pi (approximately 3.14159).
  • R_outer is the outer radius of the reel, calculated as Outer Diameter / 2.
  • R_inner is the inner radius of the reel, calculated as Inner Diameter / 2.
  • Thickness is the paper thickness in g/cm².

Example

If a paper reel has an outer diameter of 50 cm, an inner diameter of 10 cm, and a paper thickness of 0.1 g/cm², the weight would be calculated as follows:

Weight = π * (25² - 5²) * 0.1 = π * (625 - 25) * 0.1 = π * 600 * 0.1 = 188.496 g