Pendulum Length Calculator

In the realm of physics and engineering, understanding the behavior of pendulums is crucial. Whether in clocks, amusement park rides, or scientific experiments, calculating the length of a pendulum is fundamental. Fortunately, with the aid of a simple calculator, this task becomes effortless.

How to Use: Using the pendulum length calculator is straightforward. Input the gravitational acceleration (usually denoted as ‘g’) and the period of the pendulum’s swing (T). Then, hit the “Calculate” button to obtain the result.

Formula: The formula to calculate the length of a pendulum is derived from the equation for the period of a simple pendulum:


  • T = Period of the pendulum’s swing
  • L = Length of the pendulum
  • g = Gravitational acceleration (approximately 9.81 m/s² on Earth’s surface)

By rearranging the formula, we can solve for the length of the pendulum:

Example Solve: Let’s say we have a pendulum with a period of 22 seconds and a gravitational acceleration of 9.819.81 m/s². Plugging these values into the formula:


So, the length of the pendulum is approximately 0.995 meters.


Q: Can this calculator be used for any gravitational acceleration?

A: Yes, as long as you input the appropriate gravitational acceleration for the specific location where the pendulum is being observed.

Q: What if the pendulum has a different period unit?

A: Ensure consistency in units. If the period is given in minutes, hours, or any other unit, convert it to seconds before using the calculator.

Conclusion: Calculating the length of a pendulum is essential in various fields, from physics to engineering. With the help of the pendulum length calculator, this task becomes hassle-free, allowing for accurate results with minimal effort.

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