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Square Footage Calculator
Enter your values below. Results update instantly in your browser.
RESULT—
✓ Instant result✓ No signup✓ Runs in your browser
Quick explanation
Measure the length and width of a rectangular area in feet. Add a waste allowance when estimating materials, and optionally enter a cost per square foot for a quick project estimate.
How to use this calculator
Enter the requested values and review the result above. This calculator is designed for quick estimates and general informational use.
About this calculation
For important financial, construction, purchasing or technical decisions, verify your inputs and assumptions with an appropriate authoritative source or professional.