Abacurio · abacurio.com

Area calculator

Choose a shape and a unit, then enter the measurements. You get the area in that unit squared, converted to square feet, m² and acres.

Last updated: · By · About & Methodology

Area calculator

Area

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How is it calculated?

Rectangle: length × width. Triangle: half of base × height. Circle: π × radius². Trapezoid: average of the parallel sides × height. Ellipse: π × a × b.

Use the same unit for every measurement — the result is in that unit squared (m², ft², cm²).

Common questions

How do I find the area of an irregular room?

Split it into rectangles and triangles, work out each one and add them up.

How do I convert m² to ft²?

Multiply by 10.764.