Enter the length and width of the soffit into the calculator to determine the area; this calculator can also evaluate the length or width given the area is known.

Soffit Formula

The following formula is used to calculate the area of a soffit:

 A = L * W

Variables:

  • A is the area of the soffit
  • L is the length of the soffit
  • W is the width of the soffit

To calculate the area of a soffit, multiply the length of the soffit by the width of the soffit.

What is a Soffit?

A soffit is a component of a building’s architecture that is typically found on the underside of elements such as arches, balconies, or overhanging eaves. It serves both aesthetic and functional purposes. Aesthetically, it provides a finished look, hiding the underside of the roof overhang, the floor of a balcony, or the underside of a flight of stairs. Functionally, it helps in ventilating the attic, preventing moisture build-up, and keeping animals out. It is usually made from materials like wood, metal, or vinyl, which are chosen for their durability and resistance to weather conditions. The soffit can also house lighting or speakers for outdoor entertainment spaces.

How to Calculate Soffit?

The following steps outline how to calculate the Soffit.


  1. First, determine the length of the soffit (in inches).
  2. Next, determine the width of the soffit (in inches).
  3. Next, gather the formula from above = Soffit = Length x Width.
  4. Finally, calculate the Soffit.
  5. After inserting the values 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 (in inches) = 12

Width (in inches) = 6