Using the calculator
Enter the values requested above. Calculate room floor area, perimeter and optional wall area.
FREE CALCULATOR · NO SIGN IN REQUIRED
Room Square Footage Calculator
Calculate room floor area, perimeter and optional wall area.
Enter your project measurements
Use measured dimensions, quantities, prices, and coverage rates for the project. The room square footage tool turns those inputs into a material, area, volume, or cost estimate.
Important: Use the inputs that match your situation. Results are estimates based on the values and assumptions entered.
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How to use this calculator
Reading the result
The result shows room floor area, perimeter and optional wall area.
Results are estimates based on the values entered. Review the Methodology and Calculator Disclaimer for important limitations.