### What Is Circle?

It is not much dificult to remember formulas for calculating Circle Area, Diameter and Circumference/ Perimeter if any one value is provided. We just want to make it easy to calculate through this calculator.

### What Are Calculation Option Available in Circle?

Select which value you are providing (Area, Diameter, Circumference), input value and click on Compute!

A circle can be defined as a shape in which all points on the shape are an equal distance from a central point. The circumference of a circle is the measure of how far around the edge of the circle is. It can be calculated by multiplying pi (3.14159265358979323846) by the diameter or 2 times pi times the radius.
The area of a circle is found by multiplying pi (3.14159265358979323846) by square-root(radius squared). We can find all the properties of circle By using following formula :

**Area :**
A = πr^{2}

Where

A = Area

r = Radius

**Diameter :**
D = 2r

Where

D = Diameter

r = Radius

**Circumference :**
C = 2πr

Where

C = Circumference

r = Radius

### How to use Circle Calculator?

Step by step procedure for Circle Calculator is as follows.

**Step 1: **Select which value you will be providing? Dropdown has Area, Diameter and Circumference options.

**Step 2: **Input appropriate value as per selected type in Step 1.

**Step 3: **Now click on "Compute" button to get result.

You will get Area, Circumference, Radius as per you selection and value input.