Circle Calculator
Calculate circle properties (area, circumference, diameter, radius) from any given value. Features include visualizations, step-by-step solutions, and comprehensive formulas.
Calculator
Select an input type, enter a value, and calculate to see all circle properties with visualizations and step-by-step solutions.
Area
0
m²
Radius
-
Diameter
-
Circumference
-
Unit
-
Circle Visualization
Circle will be displayed here after calculation
Detailed Results
Area Gauge
Properties Comparison
Properties Relationship
Step-by-Step Solution
Complete User Guide
What is the Circle Calculator?
The Circle Calculator is a free tool that calculates all circle properties (area, circumference, diameter, radius) from any given value. It uses high-precision mathematics and provides step-by-step solutions.
You can input any one property (radius, diameter, circumference, or area) and the calculator will compute all other properties automatically.
How to Use This Calculator
- Select what you want to calculate from (Radius, Diameter, Circumference, or Area)
- Choose your preferred unit of measurement
- Enter the value for your selected property
- Click 'Calculate' to get all circle properties
- View detailed results, formulas, and step-by-step solutions
- Use charts and visualizations to better understand the calculations
Circle Formulas
Area
A = πr²
Pi × Radius²
Circumference
C = 2πr
2 × Pi × Radius
Diameter
d = 2r
2 × Radius
Radius
r = d/2
Diameter ÷ 2
Important Notes
- All calculations use high-precision mathematics (SymPy) for accurate results, especially for π (pi) calculations.
- Results are rounded to 8 decimal places for display, but calculations use full precision internally.
- The value of π (pi) used is approximately 3.141592653589793