Surface Area Calculator | Free Online Geometry Tools - CalcDeck

Surface Area Calculator

Calculate the surface area of common geometric shapes with our easy-to-use calculator.

Result: 0 square units

Understanding Surface Area

Surface area is the total amount of area that the surface of a three-dimensional object covers. It's essential in many real-world applications:

  • Architecture and Construction: Calculating paint or material coverage
  • Manufacturing: Determining material requirements
  • Science: Analyzing heat transfer and chemical reactions
  • Packaging: Designing efficient containers

Common Formulas

Here are some commonly used surface area formulas:

  • Square: A = s²
  • Rectangle: A = l × w
  • Circle: A = Ï€r²
  • Triangle: A = (b × h) ÷ 2