Square Footage Calculator
Calculate the square footage of any room or space.
Enter your numbers and select Calculate to see results.
About This Calculator
This calculator computes the area of a rectangular room or space in square feet from its length and width — a foundational calculation used for flooring, paint, renovation budgeting, and real estate purposes.
How This Is Calculated
Area = Length × Width
A 14 ft × 12 ft room has an area of 168 square feet.
Assumptions
- Assumes a simple rectangular space; irregular rooms should be broken into rectangular sections and summed.
Frequently Asked Questions
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Last updated January 15, 2026. Results are estimates for informational purposes only — read our disclaimer.