Calculator for Circle Area

Alternative name: Round area calculator

This calculator will help you find the area of a circle. The formula used in this calculator is listed below.

To use this calculator, you will need to know the radius.



Area = 314.159

You might also be interested in calculating the Circle perimeter

Circle Area Formula

Formula variable explanation:

  • C represents the area.
  • r represents the Radius.

LaTeX formula

If you are working in a TeX based editor you could use this TeX formula to calculate the circle area.

\mathrm{C}=\pi\cdot{ r}^{2}

How To Calculate The Circle Area Your Self

Calculating the area is rather simple when you know the formula presented above. Follow these steps:

  1. Write down this formula:

  2. Then change the following variables with your values:
    1. r shall be changed with the Radius of your circle. As an example r could be changed to 10.
  3. Now you can enter this in to your calculator and you will get your answer.