Square Footage Calculator

Measure rooms and plan flooring purchases with feet, inches, metric units, and multiple shapes.

Square Footage Calculator Introduction

Square Footage Calculator is a free browser-based tool for homeowners, renters, contractors, and DIY renovators. Measure rooms in feet and inches, decimal feet, meters, or centimeters; calculate rectangles, circles, triangles, L-shaped spaces, and multiple rooms; then plan a flooring purchase with a practical waste allowance and whole-box rounding. The calculator is useful for early planning and shopping comparisons, while final material quantities should still be checked against the product coverage, installation pattern, and a contractor or manufacturer quote when needed. It does not claim to replace professional estimates.

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