Welcome to our Area of a Circle Calculator page.
We explain how to find the area of a circle and provide a quick calculator to work it out for you, step-by-step.
There is also a separate calculator which will find the radius and diameter of a circle, if you already know the area.
This calculator finds the area of a circle when the radius or diameter is known.
This calculator finds the radius and diameter of the circle when the area is known.
The formula for the area of a circle is: A = πr2, where r is the radius of the circle.
We hope that our calculator provides with useful step-by-step instructions for finding the area of a circle.
If you would like some more help and support try our Area of a Circle support page.
There are lots of worked examples, as well as worksheets, word problems and even an online quiz.
Take a look at some more of our worksheets similar to these.
We have a range of area and volume calculators to help you find the area and volumes of a range of different 2d and 3d shapes.
Each calculator page comes with worked examples, formulas and practice worksheets.
We have a range of other area worksheets and support pages for a range of different 2d shapes.
Do you know the special geometric names to describe the different parts of a circle?
Well you can find all the support you need on this page, complete with some practice worksheets and an online quiz!
We have a wide range of free math calculators to help you.
Most of our calculators show you their working out so that you can see exactly what they have done to get the answer.
Our calculator hub page contains links to all of our calculators!
How to Print or Save these sheets
Need help with printing or saving?
Follow these 3 steps to get your worksheets printed perfectly!
How to Print or Save these sheets
Need help with printing or saving?
Follow these 3 steps to get your worksheets printed perfectly!
The Math Salamanders hope you enjoy using these free printable Math worksheets and all our other Math games and resources.
We welcome any comments about our site or worksheets on the Facebook comments box at the bottom of every page.
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