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Circumference Calculator
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The distance around the circle is known as the circumference of the circle.

Circumference of a circle

Formula for calculating the circumference of a circle is 2 * π * r {where r is the radius of the circle}.

Circumference Calculator (or Circumference of a Circle Calculator) can be used to Calculate the Circumference of a Circle if radius (r) is known. Put the radius of the circle in this calculator and it will calculate the circumference of the circle.

 

Steps for Calculating Circumference of a Circle

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Step 1 :  

Formula for a circumference of a circle = 2 * π * r .


r = radius.


π = 3.142 (fixed value).



Step 2 :  

Put the values in the formula and find the circumference of a circle.



Examples for Circumference of a Circle Calculator

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  1. If the radius of a circle is 6 cm,calculate the circumference of a circle.


    Step 1 :  

    Given:


    r = 6 cm.


    π = 3.142


    Circumference of a circle = ?



    Step 2 :  

    Put the values in the formula,


    Circumference of a circle = 2 * π * r .


    Circumference of a circle = 2 * 3.142 * 6 cm.


    Circumference of a circle = 37.69 cm



    Answer  :  

    Circumference of a circle = 37.69 cm



  2. If the radius of a circle is 9 cm,calculate the circumference of a circle.


    Step 1 :  

    Given:


    r = 9 cm.


    π = 3.142


    Circumference of a circle = ?



    Step 2 :  

    Put the values in the formula,


    Circumference of a circle = 2 * π * r .


    Circumference of a circle = 2 * 3.142 * 9 cm.



    Answer  :  

    Circumference of a circle = 56.54 cm



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