# Circle Area Calculator

Enter radius and click calculate button to find the area using circle area calculator

Formula:
A = π r2

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## Circle Area Calculator

Use the area of a circle calculator to find the total space of a circle. This advanced area tool gives the steps of the circle area calculation as well.

Moreover, it finds the diameter and the circumference of the circle.

## What is the circle area?

Circle area is a simple thing. The stretch of a circle on a two-dimensional plane. It tells you the area occupied by the circle in the unit square.

## Circle area formula:

The formula used to find the area of a circle is given below;

Circle area = A = πr2

Here π is the mathematical constant pi. Its value is 3.14.

Note: r2 is not equal to the diameter of the circle i.e 2r.

## How to find the circle area?

The allmath’s calculator to find the circle area gives 100 percent accurate results. Other than that, there is a manual method.

2. Calculate its square.
3. Multiply the value with pi.
4. The final value is the area of the circle.

Example:

A circle has a radius of 7cm. Find its area.

Solution:

Step 1: Find the square of the radius.

r2 = r x r
= 7 x 7
= 49 cm2

Step 2: Put in the formula.

A = πr2
A = π(49)

Step 3: Solve.

A = (3.14)(49)
= 153.9 cm2