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`V = 1/3 * pi * "h" ( "a" ^2+ "a" * "b" + "b" ^2)`

Enter a value for all fields

The **Volume of the Frustum of a Cone** calculator computes the volume of a frustum (slice) of a cone based on the top radius (**a**), bottom radius (**b**) and height (**h**) in between.

**INSTRUCTION:** Choose units and enter the following:

- (
**a**) - radius of top surface - (
**b**) - radius of bottom surface - (
**h**) - height in between top and bottom

**Volume of the Cone Section (V):** The calculator computes the volume (**V**) in cubic meters (m^{3}). However this can be automatically converted to many other volume units (e.g. gallons or cubic feet) via the pull-down menu.

The frustum of a cone is a section of a cone also known as a truncated cone. The frustum of a cone is created by parallel planes that go through the cone and are normal (perpendicular) to the center axis of the cone. The shape of the top and bottom are perfect circles whose centers are directly aligned. The planes are separated by the height (h). The formula for the Volume of the Frustum of a cone is as follows:

**V = ^{1}/_{3} • π • h(a^{2}+a•b+b^{2})**

where:

- V is the volume of the frustum (section) of a cone
- a is the radius of one end
- b is the radius of the other end
- h is the height

- 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.

- Frustum Calculator - Equations for volume, mass and surface areas for various frustums.
- Planter Calculator - Equations for home and garden planters.
- Volume Calculator - Volume equations for various geometric shapes
- Mass Weight Calculator - Equations for the mass and weight of objects based on their mean density and shape

**Volume **is a three dimensional measurement of the amount of space taken up by an object. Volume units are cubic measurements for solid objects such as cubic inches and cubic meters. Fluids have separate volume units such as liters, fluid ounces, cups, gallons, and barrel.

The volume of an object can measured by the liquid it displaces or be calculated by measuring its dimensions and applying those dimensions to a formula describing its shape. Many such calculations are available in the following list of calculators.

In many cases, the calculators are for a column with a geometric shaped base and vertical sides. One basic formula for volume is area times a Height when the volume has vertical sides.

- Volume from Area and Height
- Volume of a Cube
- Volume of a Box
- Volume of a Cone
- Volume of a Cone Frustum
- Volume of a Cylinder
- Volume of a Slanted Cylinder
- Volume of a Semicircle
- Volume of a Triangular
- Volume of a Quadrilateral
- Volume of a Pentagon
- Volume of a Hexagon
- Volume of a Heptagon
- Volume of a Octagon
- Volume of a Nonagon
- Volume of a Decagon
- Volume of a Hendecagon
- Volume of a Dodecagon
- Volume of a Paraboloid
- Volume of a Polygon based Pyramid
- Volume of a Pyramid Frustum
- Volume of a Sphere
- Volume of a Sphere Cap
- Volume of a Sphere Segment
- Volume of a Sphere Shell
- Volume of a Oblate Spheroid
- Volume of a Ellipsoid
- Volume of a Torus
- Volume of a Bottle
- Volume of a Chamfer

- Equation 4.42 Spiegel, Murray R. "Chapter 4."
*Mathematical Handbook of Formulas and Tables*. New York: McGraw-Hill, 1968. N. pag. Print.