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

Step 1 :

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

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

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

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.