Circle Area Calculator
Calculate the area of a circle using radius, diameter, or circumference.
Understanding Circle Area
The area of a circle represents the amount of space enclosed within its circumference. The formula for calculating a circle's area is:
Key Concepts
- The radius (r) is the distance from the center to any point on the circle's edge
- π (pi) is approximately 3.14159
- The area increases exponentially with the radius due to the square term