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Circle Calculator – Radius, Diameter, Area & Circumference | Solvezi
Circle Calculator – Radius, Diameter, Area & Circumference | Solvezi
Calculate circle properties using different measurements
This comprehensive circle parameter calculator instantly finds the radius, diameter, circumference, and area of a circle using just one known value. It also calculates advanced properties like arc length and sector area, providing step-by-step formulas for all results.
Quickly get the area formula (A = πr²) and the circumference formula (C = 2πr) for any given input. See the exact substitution steps used for the calculation.
Calculate the arc length and the sector area based on a given central angle. This is essential for advanced geometry problems and engineering tasks.
A dynamic diagram displays the calculated radius (r) and diameter (d). For arc and sector calculations, the relevant central angle is visually highlighted.
This tool simplifies all circular geometry calculations. Whether you need the area of a circle from its radius, or the radius of a circle from its area, our calculator handles the conversion and computation automatically.
The core of any circle math calculation relies on the constant π ≈ 3.14159... and the following relationships:
Manual calculation is prone to errors, especially when dealing with the transcendental number π and complex formulas like those for sector area or deriving the radius from a known area. This calculator ensures high precision, displays results with four decimal places, and provides a clear audit of the calculation process. It's an indispensable tool for students, carpenters, engineers, and anyone needing accurate circle measurements.