Enter the length of the room to be heated (ft) and the width of the room to be heated (ft) into the Baseboard Heat Size Calculator. The calculator will evaluate the Baseboard Heat Size. 

Baseboard Heat Size Formula

The following two example problems outline the steps and information needed to calculate the Baseboard Heat Size.

BHS = L * W * 10

Variables:

  • BHS is the Baseboard Heat Size (watts)
  • L is the length of the room to be heated (ft) 
  • W is the width of the room to be heated (ft) 

How to Calculate Baseboard Heat Size?

The following steps outline how to calculate the Baseboard Heat Size.


  1. First, determine the length of the room to be heated (ft). 
  2. Next, determine the width of the room to be heated (ft). 
  3. Next, gather the formula from above = BHS = L * W * 10.
  4. Finally, calculate the Baseboard Heat Size.
  5. 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.

length of the room to be heated (ft) = 10

width of the room to be heated (ft) = 10

BHS = L * W * 10 = ?