# Volume of a Conical Frustum Calculator

## Conical Frustum Shape

r_{1} = radius1

r_{2} = radius2

h = height

s = slant height

V = volume

L = lateral surface area

T = top surface area

B = base surface area

S = total surface area

π = pi = 3.14159

√ = square root

Calculate more with

Conical Frustum Calculator

## Calculator Use

Online calculator to calculate the volume of geometric solids including a capsule, cone, frustum, cube, cylinder, hemisphere, pyramid, rectangular prism, sphere and spherical cap.

**Units:** Note that units are shown for convenience but do not affect the calculations. The units are in place to give an indication of the order of the results such as ft, ft^{2} or ft^{3}. For example, if you are starting with mm and you know a and h in mm, your calculations will result with V in mm^{3}.

Below are the standard formulas for volume.

## Volume Formulas:

## Capsule Volume

- Volume = πr
^{2}((4/3)r + a)- Surface Area = 2πr(2r + a)
## Circular Cone Volume & Surface Area

- Volume = (1/3)πr
^{2}h- Lateral Surface Area = πrs = πr√(r
^{2}+ h^{2})- Base Surface Area = πr
^{2}- Total Surface Area

= L + B = πrs + πr^{2}= πr(s + r) = πr(r + √(r^{2}+ h^{2}))## Circular Cylinder Volume

- Volume = πr
^{2}h- Top Surface Area = πr
^{2}- Bottom Surface Area = πr
^{2}- Total Surface Area

= L + T + B = 2πrh + 2(πr^{2}) = 2πr(h+r)## Conical Frustum Volume

- Volume = (1/3)πh (r
_{1}^{2}+ r_{2}^{2}+ (r_{1}* r_{2}))- Lateral Surface Area

= π(r_{1}+ r_{2})s = π(r_{1}+ r_{2})√((r_{1}- r_{2})^{2}+ h^{2})- Top Surface Area = πr
_{1}^{2}- Base Surface Area = πr
_{2}^{2}- Total Surface Area

= π(r_{1}^{2}+ r_{2}^{2}+ (r_{1}* r_{2}) * s)

= π[ r_{1}^{2}+ r_{2}^{2}+ (r_{1}* r_{2}) * √((r_{1}- r_{2})^{2}+ h^{2}) ]## Cube Volume

- Volume = a
^{3}- Surface Area = 6a
^{2}## Hemisphere Volume

- Volume = (2/3)πr
^{3}- Curved Surface Area = 2πr
^{2}- Base Surface Area = πr
^{2}- Total Surface Area= (2πr
^{2}) + (πr^{2}) = 3πr^{2}## Pyramid Volume

- Volume = (1/3)a
^{2}h- Lateral Surface Area = a√(a
^{2}+ 4h^{2})- Base Surface Area = a
^{2}- Total Surface Area

= L + B = a^{2}+ a√(a^{2}+ 4h^{2}))

= a(a + √(a^{2}+ 4h^{2}))## Rectangular Prism Volume

- Volume = lwh
- Surface Area = 2(lw + lh + wh)
## Sphere Volume

- Volume = (4/3)πr
^{3}- Surface Area = 4πr
^{2}## Spherical Cap Volume

- Volume = (1/3)πh
^{2}(3R - h)- Surface Area = 2πRh
## Triangular Prism Volume

\[ V = \dfrac{1}{4}h \sqrt{(a+b+c)(b+c-a)(c+a-b)(a+b-c)} \]