Circle Calculator ADFREE

Calculate the area of a circle, circumference of a circle,
diameter of a circle, radius of a circle.

unit:
square millimeter (mm^2); square mile (mi^2); square meter (m^2); square kilometer (km^2); square decimeter (dm^2); square centimeter (cm^2); square yard (yd^2); square foot (ft^2); square inch (in^2)

millimeter (mm); yard (yd); meter (m); kilometer (km); decimeter (dm); centimeter(cm); foot (ft); inch (in)