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15" circle what is outside measurement - Cars & Trucks

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The equation to find the circumference of a circle is "pi" times diameter; pi equals 3.14159...or approximately 22/7.

Your 15" figure is the diameter? The distance straight across the circle? So 15 X 3.14 = 47.1 inches, close enough!

Posted on May 06, 2014


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If you would like to know the circumference of a 15" diameter circle this is the formula:
circumference = radius x 2 x pi
circumference = diameter x pi

in our case:
circumference = 15" x 3,14
circumference = 47 ,1" (that's 119,634 cm)

Posted on May 06, 2014



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