Geometry Calculators

Calculate areas, perimeters, and volumes of geometric shapes.

Circle Area & Circumference

Radius (r)

Results

Area

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Circumference

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Rectangle Area & Perimeter

Length (l)

Width (w)

Results

Area

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Perimeter

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Calculate Shapes and Dimensions

Geometry is essential in architecture, design, and engineering. Our Circle Calculator computes both the area (πr²) and the circumference (2πr) instantly. Simply input the radius, and the tool will apply the value of Pi (π) with high precision.

The Rectangle Calculator is equally straightforward. By entering the length and width, you get the area (length × width) and the perimeter (2 × (length + width)). These tools are perfect for calculating material requirements for construction, flooring, or landscaping projects.

Whether you are a student learning the properties of shapes or a professional needing quick measurements, our geometry calculators provide reliable, instantaneous results without the need for manual formulas.