Square Footage & Flooring Calculator

Calculate the square footage of rectangular, L-shaped, round or triangular rooms and how much flooring to buy with waste.

Floor area168 ft²15.61 m²

Flooring to buy (incl. waste)

184.8 ft²

Boxes

For a circle, enter the diameter as the length. Add 10% waste for straight layouts, 15% for diagonal or herringbone.

Frequently asked questions

Is my data uploaded?

No. The calculation runs entirely in your browser — nothing you type is sent to a server.

Is it free?

Yes — free, unlimited and no sign-up.