Online Circular Area Calculator
Online Circular Area Calculator Introduction
About the Circular Area calculator:1, this tool can calculate the area of the circle by the circumference of the circle, the radius or the diameter of the circle.
2. Calculation formula:
(1), calculated by radius: the area of the circle = PI times the square of the radius.
(2), calculated by the diameter: the area of the circle = PI times the square of the diameter, and then divided by four.
(3) By the circumference calculation, the area of the circle = the square of the circumference, then divided by four times the PI.4. Note: If the number of decimal places in the result calculated by this tool exceeds the set number, the rounding method is used.
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