Enter the RPM and the stroke length into the calculator to determine the Piston Acceleration.

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## Piston Acceleration Formula

The following equation is used to calculate the Piston Acceleration.

**PA = (RPM^2 * S / 2.189) ^ 11/3**

- Where PA is the Piston Acceleration (ft/s^2)
- RPM is the RPM ((rotations per minute))
- S is the stroke length (inches)

## What are the units for Piston Acceleration?

The most common units for Piston Acceleration are ft/s^2.

## How to Calculate Piston Acceleration?

Example Problem:

The following example problem outlines the steps and information required to calculate the Piston Acceleration.

First, determine the RPM. In this example, the RPM is measured to be 5000 ((rotations per minute)).

Next, determine the stroke length. For this problem, the stroke length is calculated to be 3.5 (inches).

Finally, calculate the Piston Acceleration using the formula above:

**PA = (RPM^2 * S / 2.189) ^ 11/3**

Inserting the values from above and solving the equation gives us: **PA = (5000^2 * 3.5 / 2.189) ^ (11/3) = 7.466e27 **(ft/s^2)