Square Footage Calculator

Whether you are pricing flooring, ordering sod or sizing a tarp, this square footage calculator handles the three shapes you encounter most: rectangles, triangles and circles. Results convert automatically to square yards and square meters.

Your answer

100
Square Feet
Square Yards
11.11
Square Meters
9.29
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How it works

Formula

Rectangle: L × W • Triangle: ½ × Base × Height • Circle: π × Radius² • Sq Yd = Sq Ft ÷ 9 • Sq M = Sq Ft × 0.0929

Worked example

A 10 × 10 ft rectangular room = 100 ft² = 11.11 yd² = 9.29 m².

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Frequently asked questions

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