Is this calculator free to use?

Yes, all our construction calculators are completely free to use. No registration or payment required.

How accurate are the calculations?

Our calculators use industry-standard formulas and current market data to provide accurate estimates. However, actual costs may vary based on location, suppliers, and specific project requirements.

Can I save or print my results?

Yes, you can export your calculation results as a PDF report for saving, printing, or sharing with contractors and suppliers.

Square Footage Calculator

Calculate square footage for rooms, floors, and buildings. Handle rectangular, L-shaped, and circular areas with precision. Perfect for flooring, painting, and construction planning.

Room 1

Room Shape

Choose the shape that best matches your room

Length (ft)

Width (ft)

Measure the two rectangles that make up your L-shape

Rectangle 1

Length (ft)

Width (ft)

Rectangle 2

Length (ft)

Width (ft)

Radius (ft)

Distance from center to edge

Base (ft)

Height (ft)

Results

Ready to Calculate

Enter your room measurements above and click "Calculate Total Square Footage" to see detailed results.

Measurement Tips

🏠 Rectangular Rooms

Measure the longest walls for length and width. Round up to the nearest inch for material planning.

📐 L-Shaped Rooms

Break the room into two rectangles. Measure each section separately for accurate calculations.

⭕ Circular Areas

Measure from the center to the edge (radius). For diameter, divide by 2 to get radius.

📏 Accuracy Tips

Use a quality measuring tape. Account for baseboards and trim when measuring for flooring.

Room 1

Rectangle 1

Rectangle 2

Results

Ready to Calculate

Measurement Tips

🏠 Rectangular Rooms

📐 L-Shaped Rooms

⭕ Circular Areas

📏 Accuracy Tips

Article Summary