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Circumference Calculator

If you know the length of the diameter of any given circle, then you can calculate its circumference. π is a special mathematical constant with a value

3 Ways to Calculate the Circumference of a Circle

To convert diameter to circumference: Take the diameter. Multiply it by the number pi (π). In this case, the circumference equals: π × 6 ft = 18.8496 ft.

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How Do You Find the Circumference of a Circle if You Know

Suppose you know the diameter of a circle but need to find its circumference. Circumference, C, can be placed in a ratio with diameter, d, with the answer pi, π. We can rewrite that relationship:

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How to Find the Circumference of a Circle from Diameter

Generally, the diameter is used to calculate the circumference, therefore, it is also possible to calculate the length of the diameter if we have the circumference. The formula for the circumference is: C = π d. Therefore, the formula for the