CircleCalc: Circle Calculator

CircleCalc: Circle Area & Circumference Calculator

Solve circle geometry problems instantly with CircleCalc — a precision mathematical calculator crafted for students, designers, machinists, and math enthusiasts.

Calculate circle area, circumference, diameter, and radius with high precision (π = 3.14159265), paired with an interactive visual circle diagram and complete formula breakdown.

Features:
• Radius & Diameter Modes — Toggle seamlessly between radius input or diameter input.
• Complete Metric Calculations — Instant calculations for Area (A = πr²), Circumference (C = 2πr), Radius, and Diameter.
• Visual Circle Canvas — Live graphical circle diagram displaying active dimension lines.
• Multi-Unit Selection — Support for millimeters (mm), centimeters (cm), meters (m), inches (in), and feet (ft).
• Detailed Breakdown Card — Step-by-step summary of mathematical formulas and constant values used.
• 100% Offline Engine — Instant on-device calculations without needing any network connection.

Privacy & Safety:
• 100% Offline — Fully functional without internet connectivity or network requests.
• Zero Data Collection — No calculations, measurements, or user data are ever tracked or stored externally.
• No Ads & Zero Distractions — Clean, distraction-free environment for pure productivity.
• Zero Permissions — Requires no permissions to operate safely and securely.

Simplify circle mathematics with CircleCalc.