PlanSnapper
Free Tool

Floor Plan Square Footage Calculator

Add rooms, get total square footage instantly

Units:
Length
×
Width
Sqft
--
Length
×
Width
Sqft
--
Total Square Footage--

Tip: Have a floor plan PDF? Upload it to PlanSnapper for automatic measurements.

How to use this calculator

Add your rooms
Enter a name, length, and width for each room. Square footage calculates per room as you type.
Add as many rooms as needed
Bedrooms, bathrooms, hallways, closets. Include only above-grade finished spaces for GLA.
Get your total
The running total updates instantly across all rooms entered.

Have a floor plan PDF?

Upload it to PlanSnapper and measure every room automatically.

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