Square Footage Calculator — Calculate Total Area

Rooms (one per line: length,width) Format: length,width in feet — one room per line Enter at least one valid "length,width" line.

Total Square Footage

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Rooms Counted

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How to Use This Tool

For each room, measure its length and width in feet.
Enter each room as "length,width" — one per line.
Click Calculate for the total combined square footage.

The Square Footage Formula

Square Footage = Length × Width

For multiple rooms, this calculator sums each room's individual square footage to give you a combined total.

Common Uses

Estimating total home size for real estate listings or comparisons
Calculating material needs for flooring, paint, or carpet across multiple rooms
Verifying a listed property's square footage against your own measurements

A Note on Irregular Rooms

This calculator assumes rectangular rooms. For L-shaped or irregular rooms, break the space into rectangular sections, calculate each separately, and add them as additional lines.

Frequently Asked Questions

How do I calculate square footage for an L-shaped room?

Divide the L-shaped room into two rectangular sections, measure each separately, and enter both as separate lines — the calculator will sum them into your total.

Does square footage include closets and hallways?

This depends on convention — for material estimates, include every area you'll actually be covering. For real estate purposes, conventions on what counts as "livable square footage" can vary by region and appraiser.

This calculator is provided for general informational and estimation purposes only. Results should not be treated as professional financial, tax, legal, medical, or engineering advice. Always verify critical calculations with a qualified professional or official source before making decisions.