Annulus Area Calculator
The ring shaped object is called as the annulus (i.e.,) the area surrounded by two concentric circles. It can also be termed as annular whose area can be calculated when the radius of the inner and outer circle are known.
Annulus (Annular) Area Calculation
Code to add this calci to your website
A = π * (R2 - H2)
A = Area of Annulus (Annular)
R = Radius of the Outer Circle
H = Radius of the Inner Circle