Enter the piston radius (cm), the piston length (cm), and the number of pistons (cm) into the Engine Volume Calculator. The calculator will evaluate and display the Engine Volume.

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## Engine Volume Formula

The following formula is used to calculate the Engine Volume.

Ve = pi*r^2*L*n

- Where Ve is the Engine Volume (cm^3)
- r is the piston radius (cm)
- L is the piston length (cm)
- n is the number of pistons (cm)

To calculate the engine volume, multiply the piston radius squared by 2 times the piston length times the number of pistons.

## How to Calculate Engine Volume?

The following example problems outline how to calculate Engine Volume.

**Example Problem #1**

- First, determine the piston radius (cm).
- The piston radius (cm) is given as 2.5.

- Next, determine the piston length (cm).
- The piston length (cm) is calculated as: 4.

- Next, determine the number of pistons (cm).
- The number of pistons (cm) is found to be: 6.

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

Ve = pi*r^2*L*n

Inserting the values from above yields:

Ve = pi*2.5^2*4*6 = 471.238 (cm^3)

**Example Problem #2**

The variables needed for this problem are provided below:

piston radius (cm) = 3

piston length (cm) = 5

number of pistons (cm) = 4

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

Ve = pi*r^2*L*n =** **(cm^3)