Circle Calculator
Calculate circle measurements instantly. Find area, circumference, diameter, and radius with automatic conversion between different units. Features step-by-step explanations and formulas.
About Circle Calculations
A circle calculator helps you find various measurements of a circle using mathematical formulas. Enter any one measurement (radius, diameter, circumference, or area) to calculate all other related values.
Features
- Calculate all circle measurements
- Real-time computation
- Step-by-step explanations
- Formula references
- Unit conversion support
- High precision results
- Mobile-friendly interface
Calculations Available
Basic Measurements
- Radius (r)
- Diameter (d = 2r)
- Circumference (C = 2πr)
- Area (A = πr²)
Advanced Calculations
- Arc length
- Sector area
- Chord length
- Central angle
- Segment area
Common Applications
Engineering
- Pipe sizing
- Circular components
- Tank dimensions
- Wheel calculations
- Material requirements
Construction
- Column design
- Circular foundations
- Pool planning
- Landscaping
- Structural elements
Education
- Geometry homework
- Math practice
- Teaching aids
- Problem solving
- Visual learning
Formulas Used
- Area = π × radius²
- Circumference = 2 × π × radius
- Diameter = 2 × radius
- Radius = diameter ÷ 2
Related Tools
- Triangle Calculator
- Square Calculator
- Pythagorean Theorem
- Area Calculator
- Geometry Calculator