Enter the acceleration due to gravity (m/s^2) and the frequency (hz) into the Pendulum Length Calculator. The calculator will evaluate the Pendulum Length.

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## Pendulum Length Formula

The following two example problems outline the steps and information needed to calculate the Pendulum Length.

**PL = g / (4*pi^2*f^2)**

- Where PL is the Pendulum Length (m)
- g is the acceleration due to gravity (m/s^2)
- f is the frequency (hz)

## How to Calculate Pendulum Length?

The following example problems outline how to calculate Pendulum Length.

Example Problem #1:

- First, determine the acceleration due to gravity (m/s^2).
- The acceleration due to gravity (m/s^2) is given as: 9.81.

- Next, determine the frequency (hz).
- The frequency (hz) is provided as: 2.

- Finally, calculate the Pendulum Length using the equation above:

PL = g / (4*pi^2*f^2)

The values provided above are inserted into the equation below and computed.

PL = 9.81 / (4*pi^2*2^2) = .062 (m)

Example Problem #2:** **

For this problem, the variables required are provided below:

acceleration due to gravity (m/s^2) = 9.81

frequency (hz) = 3

Test your knowledge using the equation and check your answer with the calculator..

PL = g / (4*pi^2*f^2)** = ?**