Enter the foam length (ft), the foam width (ft), and the foam thickness (ft) into the Polyurethane Foam Weight Calculator. The calculator will evaluate the Polyurethane Foam Weight. 

Polyurethane Foam Weight Formula

The following formula is used to calculate the Polyurethane Foam Weight. 

PFW = FL * FW * FT * 1.2


  • PFW is the Polyurethane Foam Weight (lbs)
  • FL is the foam length (ft) 
  • FW is the foam width (ft) 
  • FT is the foam thickness (ft) 

How to Calculate Polyurethane Foam Weight?

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

Example Problem #1

  1. First, determine the foam length (ft).
    • The foam length (ft) is calculated to be : 3.
  2. Next, determine the foam width (ft).
    • The foam width (ft) is measured to be: 4.
  3. Next, determine the foam thickness (ft).
    • The foam thickness (ft) is found to be: .5.
  4. Finally, calculate the Polyurethane Foam Weight using the formula above: 

PFW = FL * FW * FT * 1.2

The values provided above are inserted into the equation below and computed.

PFW = 3 * 4 * .5 * 1.2 = 7.2 (lbs)

Example Problem #2

The variables required for this problem are provided below:

foam length (ft) = 6

foam width (ft) = 7

foam thickness (ft) = 1

Test your knowledge and check your answer with the calculator.

PFW = FL * FW * FT * 1.2 = (lbs)