Free online tool
Area calculator
Pick a shape, type its sizes, and get the area in every unit: m², cm², ft², acres, hectares and more.
Works in your browserNothing is sent anywhereNo sign-upFree
Shape
Formula
Questions
Good to know
What is the area of a circle?
π × radius × radius. A circle with a 5 m radius is about 78.54 m².
How many square feet is an acre?
43,560 ft², or about 4,047 m². A hectare is 10,000 m².
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