Enter the total wattage (watts) and the total area (m^2) into the Watt Density Calculator. The calculator will evaluate and display the Watt Density. 

Watt Density Formula

The following formula is used to calculate the Watt Density. 

WD = TW / TA
  • Where WD is the Watt Density (watts/m^2)
  • TW is the total wattage (watts) 
  • TA is the total area (m^2) 

To calculate the watt density, divide the total wattage by the total area.

How to Calculate Watt Density?

The following example problems outline how to calculate Watt Density.

Example Problem #1:

  1. First, determine the total wattage (watts).
    1. The total wattage (watts) is given as: 50.
  2. Next, determine the total area (m^2).
    1. The total area (m^2) is provided as: 2.
  3. Finally, calculate the Watt Density using the equation above: 

WD = TW / TA

The values given above are inserted into the equation below:

WD = 50 / 2 = 25 (watts/m^2)

Example Problem #2: 

For this problem, the variables needed are provided below:

total wattage (watts) = 260

total area (m^2) = 3

This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer. 

WD = TW / TA = ?