is the radius. Let's look at some examples involving the area of a circle. In each of
the three examples below, we will use Pi = 3.14 in our calculations.
Area of a Circle. Calculator Enter the radius, diameter, circumference or area of a
Circle to find the other three. The calculations are done "live":.
The area of a circle is pi times the radius squared (A = π r²). Learn how to use this
formula to find the area of a circle when given the diameter.
... by the formula: A = π r2. You can easily calculate the area of a circle in under a
minute. All you need is a calculator, a circle to measure and a tool with...
With this circle calculator you can find the area of a circle to help with your
Calculate the area and circumference of a circle. ... For help with using this
calculator, see the shape area help page. Return to the Shape Area section ...
Given the radius, use this area of a circle calculator to find the area for any circle.
Area of a circle, formula for area explained with examples, pictures, interactive
examples and quiz.
Note: If you have the diameter of a circle, you can use it to find the area of that
circle. Just plug that value into the formula for the area of a circle and solve.
The Circumference is the distance once around the circle. This online circle
calculator allows you to calculate the area, diameter, circumference and sector