Formula Straight Circular Frustum Side length    Height    Radius of the base    Radius of the upper plane

Side length

Unit
Side length of a straight circular frustum (see illustration).

Height

Unit
Height of the truncated cone, i.e. the distance of the upper area from the lower area (base).

Radius of the base

Unit
Radius of the lower circular plane.

Radius of the upper plane

Unit
Radius of the upper circular plane.