Example: find the circumference of a circle; Practical application Circumference of a circle formula. The circumference of a circle is calculated using the formula: 2 x π x radius, where π is a mathematical constant, equal to about 3.14159. It

This tool will calculate the circumference of a circle from the diameter, and will convert different measurement units for diameter and circumference. Formula. The formula used to calculate circle circumference is: C = π · ø. Symbols. C =

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