Calculators for everyday use!
Area, Radius, Diameter, Circumference
You can solve for three other components by typing in a number and press the opposite "Solve Others".
- The Area of a circle is πR² ie. 22 / 7 x Radius². The area of a circle is the space contained within the circumference and is measured in square units.
- The Radius is the distance from the center of the circle to the circumference. Radius = √(Area / π) ie. the square root of the area divided by PI.
- The Diameter of a circle is the distance from one point of the circumference through the center to the opposite side of the circle. The diameter is twice the length of the radius.
- The circumference of a circle is the circular line that marks the limits of a circle. It is 6.29 (2xPI) times the radius or 3.14 (22 / 7).
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