Processing...
`A = pi * "r" * sqrt( "r" ^2 + "h" ^2)`
Enter a value for all fields
The Surface Area of a Cone calculator computes the surface area as a function of the radius of the base (r) and the height (h). 
Right circular cone
INSTRUCTIONS: Choose the preferred units and enter the following:
- (h) Height of Cone
- (r) Radius of Based of Cone.
Cone Surface Area (A): The surface area is returned in square meters (m2). However, this can be automatically converted to other area units via the pull-down menu.
The Math / Science
Height is defined as the length of the central axis from the base to the apex of the cone. See diagram. The formula for the surface area of a cone is:
`A = pi * r * sqrt(r^2 + h^2)`
where:
- A = Surface Area of the Cone
- r = radius of the base
- h = height of the cone
- Cone Surface Area based on cone height and cone base radius
- Cone Volume based on cone height and cone base radius
- Cone Mass or Weight as a function of the volume and mean density
- Cone Frustum Surface Area based on the two heights and two radii
- Cone Frustum Volume based on the two heights and two radii
- Cone Frustum Weight or Mass based on the cone frustum volume and mean density
- Cone Shell Volume a.k.a. hollow cone volume
- Cone Shell Mass or Weight a.k.a. hollow cone mass
- Moment of inertia of a cone shaped object based on mass and rotation axis
- Moment of inertia of a cone shaped object based on mass and distance to apex (rotation around apex)
- Compute the total surface are of the frustum of a cone: This includes the top and bottom surfaces.
- Compute the lateral surface area (using L) of the frustum of a cone.
- Cone Frustum Volume from Angle
- Cone Frustum Height from Volume and Outer Side Angle: Computes height based on volume, small radius and outer side angle.
- Cone Frustum Height from Volume and Inner Side Angle: Computes height based on volume, small radius and inner side angle.