Square Footage Calculator
Quickly determine the area of any rectangular space. Simply enter the length and width to calculate the total square footage for your project planning needs.
Total Area
Core Square Footage Formula
- For accurate results, measure the length and width at least twice.
- Ensure your measurements are in the same unit (e.g., all in feet or all in inches).
- If measuring in inches, divide the final result by 144 to get square feet.
- For non-rectangular rooms, break the area into smaller rectangles and add their areas together.
- This calculation is essential for ordering materials like flooring, paint, or tile.
Frequently Asked Questions
How do I calculate the square footage of a room?
To calculate the square footage of a rectangular room, measure the length and width of the room in feet. Then, multiply the length by the width to get the area in square feet (sq. ft.). For example, a room that is 12 feet long and 10 feet wide is 120 square feet (12 x 10 = 120).
What if my room is not a perfect rectangle?
If you have an L-shaped room or another irregular shape, the easiest approach is to divide the space into multiple rectangular sections. Calculate the square footage of each section individually, and then add all the sections' areas together to get the total square footage.
How do I convert square inches to square feet?
To convert a measurement from square inches to square feet, you need to divide the number of square inches by 144. This is because there are 12 inches in a foot, so a square foot is 12 inches by 12 inches, which equals 144 square inches.
Why is calculating square footage important?
Calculating square footage is a critical first step for many home improvement and construction projects. It helps you accurately estimate the amount of materials you need, such as flooring, paint, wallpaper, or sod. This prevents over-buying and ensures you have enough material to complete your project.