Square Footage Calculator
Calculate rectangular area in square feet for flooring, paint, and room planning.
ft
ft
Area in square feet
120
Perimeter44
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How the calculation works
This calculator applies the standard formula below to the values you enter. Results update instantly in your browser—nothing is submitted to a server.
Formula
Area = length × width.
Worked example
A 12 ft by 10 ft room is 120 square feet.
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Frequently asked questions
Is this square footage calculator free?
Yes. It works instantly in your browser with no signup.
Are the results exact?
Results follow the stated formula, but real-world fees, timing, and rounding can vary.
Results are estimates for informational purposes and are not financial or professional advice.