`SA = pi( "a" + "b" ) * "L" `

Enter a value for all fields

This Surface Area of a Cone Frustum calculator computes the lateral surface area of a right circular cone with a frustum defined by base radius (a) and top radius (b) and the side wall length (L) in between.

INSTRUCTIONS: Choose your preferred length units and enter the following:

• (a) Top radius
• (b) Bottom radius
• (L) Length of the side wall

Surface Area:  The calculator returns the surface area in square meters.  However, this can be automatically converted to other area units via the pull-down menu.

Cone Calculators: 

1. Surface Area:  cone surface area based on cone height and cone base radius
2. Volume: cone volume based on cone height and cone base radius
3. Mass: cone mass or weight as a function of the volume and mean density
4. Frustum Surface Area: cone frustum surface area based on the two heights and two radii
5. Frustum Volume: cone frustum volume based on the two heights and two radii 
6. Frustum Mass: cone frustum weight or mass based on the cone frustum volume and mean density
7. Shell Volume: cone shell volume a.k.a. hollow cone volume
8. Shell Mass: cone shell mass or weight a.k.a. hollow cone mass.
9. Compute the total surface are of the frustum of a cone:  This includes the top and bottom surfaces.
10. Compute the lateral surface area (using L) of the frustum of a cone.