Enter the marble length (ft), the marble width (ft), and the marble thickness (in) into the Marble Weight Calculator. The calculator will evaluate the Marble Weight. 

Marble Weight Formula

The following formula is used to calculate the Marble Weight. 

MW = L * W* T/12 * 160


  • MW is the Marble Weight (lbs)
  • L is the marble length (ft) 
  • W is the marble width (ft) 
  • T is the marble thickness (in) 

To calculate marble weight, multiply the length, width, and thickness to get volume, then multiply by the density.

How to Calculate Marble Weight?

The following steps outline how to calculate the Marble Weight.

  1. First, determine the marble length (ft).
  2. Next, determine the marble width (ft). 
  3. Next, determine the marble thickness (in). 
  4. Next, gather the formula from above = MW = L * W* T/12 * 160.
  5. Finally, calculate the Marble Weight.
  6. 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.

marble length (ft) = 10

marble width (ft) = 10

marble thickness (in) = 3MW = L * W* T/12 * 160 =  ?