Square Footage Calculator

Square Footage Calculator – Measure Area Fast and Accurately

Whether you're planning a home renovation, estimating paint or flooring, or listing a property, knowing the square footage of a space is essential. The Square Footage Calculator helps you calculate the area of any room or surface quickly, accurately, and hassle-free.

At Calculators.at, our free Square Footage Calculator is perfect for homeowners, contractors, real estate agents, and DIYers.


🔍 What Is Square Footage?

Square footage is the measurement of a two-dimensional space in square feet (ft²). It's most commonly used to describe the size of rooms, floors, land, or other flat surfaces.

Formula (for rectangles/squares):
Area = Length × Width

For irregular shapes, the area may need to be broken into sections and added together.


🧮 How to Use the Square Footage Calculator

  1. Enter the length and width of the space in feet
  2. (Optional) Use inches for more precision
  3. Click “Calculate”

The tool will instantly return the total area in square feet. For more complex shapes, you can input multiple areas and add them together.


✅ Why Use a Square Footage Calculator?

  • 🧱 Plan for flooring, carpet, or tile purchases
  • 🎨 Estimate paint or wallpaper coverage
  • 🏠 List or price real estate accurately
  • 🛠️ Support construction and remodeling estimates
  • 📐 Simplify DIY projects with precise measurements

🧠 Example Calculations

  • A room that’s 12 ft long and 10 ft wide:
  • → 12 × 10 = 120 ft²
  • A hallway that’s 6 ft wide and 15 ft long:
  • → 6 × 15 = 90 ft²

Total area = 120 + 90 = 210 ft²


👥 Who Should Use It?

  • 🏡 Homeowners and renters
  • 🧰 Contractors and interior designers
  • 🧑‍💼 Real estate professionals
  • 🧑‍🎓 Students studying math or construction
  • 🧑‍🎨 DIYers working on personal projects