Calculator and formulas for calculating circles
This function calculates the radius, diameter, area and the perimeter of a circle from a given circle property.
To perform the calculation, select the required parameter in the menu and enter its value. Then click the 'Calcutate' button.
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Radius | \(\displaystyle r = \sqrt{\frac{A}{π}}\) | |||
Area | \(\displaystyle A = r^2 · π\) | \(\displaystyle = \frac{d^2 · π}{4}\) | ||
Circumference | \(\displaystyle c = d · π\) | |||
Diameter | \(\displaystyle d = 2 · r\) | \(\displaystyle = \sqrt{\frac{ 4 · A }{ π}}\) |
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