Square Footage Calculator
Calculate the total square footage of any room or property by entering length and width in feet.
Result
Please check your inputs.
How to Use This Tool
Enter the length of the room or property in feet into the 'Length' field.
Enter the width in feet into the 'Width' field.
Click the 'Calculate' button to instantly see the total square footage.
If you have multiple rooms, repeat the process for each space and add the results together.
Use the clear button to reset the fields and start a new calculation.
What Is Square Footage Calculator?
A square footage calculator is a simple yet powerful tool that helps you determine the total area of a room or property by multiplying its length by its width. This measurement is expressed in square feet, the standard unit for real estate listings, flooring projects, and home improvement planning. Understanding the square footage of a space is essential whether you are buying or selling a home, estimating material costs for renovation, or comparing property sizes. With this tool, you can quickly and accurately compute area without manual math errors, saving time and ensuring your estimates are reliable for budgeting and decision-making.
Formula
The formula used is: Square Footage = Length (feet) × Width (feet). For example, if a room is 15 feet long and 10 feet wide, the square footage is 15 × 10 = 150 square feet. This formula works for any rectangular or square space. For irregularly shaped rooms, divide the area into rectangles, calculate each separately, and add the results.
Tips for Best Results
📏 Measure twice, enter once — always double-check your measurements in feet for accuracy.
📐 For irregular rooms, break the space into rectangles, calculate each, then sum for total square footage.
💡 Include closets and alcoves in your measurements to get the true living area.
🔄 Use the same unit (feet) consistently; if you have inches, convert to feet by dividing by 12 before entering.
Frequently Asked Questions
What is the difference between square footage and square meters?
Square footage measures area in feet (imperial system), while square meters use the metric system. To convert square feet to square meters, multiply by 0.0929. This calculator uses feet as input, so you'll get results in square feet.
Can I use this calculator for rooms that are not perfectly rectangular?
Yes, but you'll need to divide the space into smaller rectangular sections. Measure each section's length and width, calculate their square footage separately, and then add all the results together to get the total.
Does this tool account for walls or other obstacles?
No, this calculator gives the floor area based on the length and width you enter. For usable living space, measure from wall to wall, ignoring built-in furniture or fixtures. For material estimates like flooring, subtract any obstacles (e.g., columns) after calculating the total area.