Enter the outer disc radius (in), the inner disc radius (in), and the thickness (in) into the Disc Volume Calculator. The calculator will evaluate and display the Disc Volume.

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## Disc Volume Formula

The following formula is used to calculate the Disc Volume.

Vdisc = pi*(Ro-Ri)^2*t

- Where Vdisc is the Disc Volume (in^3)
- Ro is the outer disc radius (in)
- Ri is the inner disc radius (in)
- t is the thickness (in)

To calculate a disc volume, subtract the inner radius from the outer radius, raise the result to the power of 2, then multiply by pi times the thickness.

## How to Calculate Disc Volume?

The following example problems outline how to calculate Disc Volume.

**Example Problem #1**

- First, determine the outer disc radius (in).
- The outer disc radius (in) is given as 30.

- Next, determine the inner disc radius (in).
- The inner disc radius (in) is calculated as: 20.

- Next, determine the thickness (in).
- The thickness (in) is found to be: 5.

- Finally, calculate the Disc Volume using the formula above:

Vdisc = pi*(Ro-Ri)^2*t

Inserting the values from above yields:

Vdisc = pi*(30-20)^2*5 = 1570.79 (in^3)

**Example Problem #2**

The variables needed for this problem are provided below:

outer disc radius (in) = 50

inner disc radius (in) = 20

thickness (in) = 10

This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer.

Vdisc = pi*(Ro-Ri)^2*t =** **(in^3)