Find the area of a circle by using this online Circle Calculator.
Area of a Circle Radius and Diameter
How do you find the area of a circle?
Find the area with this circle area formula:
Multiply Pi (3.1416) with the
square of the radius (r).
Area = 3.1416 x
r squared
The radius can be any measurement of
length.
This calculates the area as square units of the length used in the radius.
Example: The area of a circle with
a radius(r) of 3 inches is:
Circle Area = 3.1416 x 3 squared
Calculated out
this gives an area of 28.2744 Square Inches.
