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Calculator Collection

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Both calculators run independently — change the inputs on either side to compare results.

Geometry

Circle Geometry Calculator

Convert any known circle measurement — radius, diameter, circumference, or area — into any other. Perfect for engineering, design, or math problems involving circular shapes.

Fill in the required fields to see your result.
Geometry

Regular Polygon Calculator

Instantly calculate interior angles, exterior angles, area, and perimeter of any regular polygon. Perfect for geometry students, architects, and tile pattern designers.

Fill in the required fields to see your result.

Key differences

Circle Geometry CalculatorRegular Polygon Calculator
CategoryGeometryGeometry
Inputs required34
ResultResult (units)Result (°/rad/units²/units)
What it doesConvert any known circle measurement — radius, diameter, circumference, or area — into any other. Perfect for engineering, design, or math problems involving circular shapes.Instantly calculate interior angles, exterior angles, area, and perimeter of any regular polygon. Perfect for geometry students, architects, and tile pattern designers.