CALCULATOR
Circle Area Calculator
Calculate the area of a circle. Find the area by entering the radius or diameter of the circle
Calculator
How to Calculate
- 1Enter the radius of the circle
- 2Click "Calculate" to compute the area and circumference
- 3The result shows the area in square units and circumference in linear units
Examples
Example 1: Circle with radius 5m
Inputs
radius: 5
Result
78.53981633974483
Example 2: Circle with radius 10m
Inputs
radius: 10
Result
314.1592653589793
Example 3: Circle with radius 2.5m
Inputs
radius: 2.5
Result
19.634954084936208
Frequently Asked Questions
Find answers to common questions about using this calculator. If you have additional questions, feel free to explore the examples above or contact our support team.
Related Calculators
- Rectangle Area Calculator
Calculate the area of a rectangle. Find the area by entering length and width measurements.
- Area Calculator
Calculate the area of circles, squares, rectangles, and triangles. Supports multiple geometric shapes with accurate formulas.
- Square Root Calculator
Calculate the square root of any positive number instantly. Perfect for geometry, algebra, and everyday math problems.