Square Footage Calculator

- May 10, 2025
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Calculate the square footage (area) of various spaces and shapes for flooring, painting, landscaping, and other home improvement projects.

Space Type

Rectangular Room Dimensions

ft
ft

Additional Options

About Square Footage

Square footage (or square metre in metric) is a measurement of area, which is the size of a two-dimensional surface. It's commonly used in real estate, construction, and home improvement projects to determine the size of rooms, homes, and land.

Common Formula
  • Rectangle: Area = Length × Width
  • Circle: Area = π × Radius²
  • Triangle: Area = (Base × Height) á 2
  • L-Shape: Calculate as two rectangles and add them together
Unit Conversions
  • 1 square foot (ft²) = 144 square inches (in²)
  • 1 square foot (ft²) = 0.111 square yards (yd²)
  • 1 square foot (ft²) = 0.0929 square metres (m²)
  • 1 square metre (m²) = 10.764 square feet (ft²)
  • 1 acre = 43,560 square feet (ft²)
  • 1 hectare = 10,000 square metres (m²) = 2.471 acres
Tips for Measuring
  • Always measure to the nearest 1/8 inch or millimetre for accuracy
  • For irregular shapes, break them down into regular shapes (rectangles, triangles, etc.)
  • When measuring for flooring, add 5-10% extra for waste and cuts
  • For walls, subtract windows and doors from the total wall area when calculating paint

What is a Square Footage Calculator?

A Square Footage Calculator is a handy tool that helps you find the area of different spaces and shapes. Whether you're planning a new flooring project, painting a room, or landscaping your garden, knowing the square footage is vital. This calculator makes it easy to enter dimensions and get accurate results quickly. It’s perfect for both simple and complex spaces, saving you time and effort.

Why Use This Calculator?

This calculator is designed for homeowners, contractors, and DIY enthusiasts alike. It can handle various shapes, including rectangular, L-shaped, circular, and triangular areas. With just a few clicks, you can determine how much material you'll need for your project. It also allows custom inputs for unique spaces, ensuring you get the precision you need.

How to Enter Your Measurements

You can choose from several space types and measurement systems. Options include:

  • Rectangular Room
  • L-Shaped Room
  • Circular Area
  • Triangular Area
  • Multi-Room Space
  • Custom Dimensions

Just select your preferred option and fill in the required dimensions to calculate the area accurately.

Understanding Square Footage

Square footage measures the area of a flat surface. It’s commonly expressed in square feet (ft²) in the imperial system or square metres (m²) in the metric system. Knowing this measurement can help you plan effectively for various projects, whether it’s flooring, wall painting, or outdoor landscaping.

Common Formulas Used

Understanding the formulas for calculating area can be beneficial. Here are some basic calculations:

  • Rectangle: Area = Length × Width
  • Circle: Area = π × Radius²
  • Triangle: Area = (Base × Height) á 2
  • L-Shape: Add the areas of two rectangles together

These formulas power the calculations behind the calculator, helping you get precise results every time.

Helpful Tips for Measuring

Accurate measurements lead to better results. Here are a few tips to keep in mind:

  • Use a tape measure for accuracy, measuring to the nearest eighth of an inch or millimetre.
  • For irregularly shaped areas, break them into smaller, regular shapes to simplify calculations.
  • Always consider adding a little extra material (5-10%) for waste and cuts, especially for flooring.
  • When painting, subtract the area of windows and doors from your total wall area.

These tips can save you both time and money during your projects.

Viewing Results and Units

Once you’ve entered your measurements, the calculator will provide the total area in square feet. It also offers conversions to Other units such as square yards, square inches, and acres. You can easily compare the area in different units to find what works best for your needs. This flexibility ensures you can plan your projects without hassle.

Conclusion: Make Your Projects Easier

The Square Footage Calculator is a simple yet powerful tool for anyone involved in home improvement projects. With its user-friendly design and ability to handle a variety of shapes and dimensions, it streamlines the process of determining area. Start using it today and simplify your planning for flooring, painting, or landscaping!