Pendulum Calculator

Calculate the period and frequency of a simple pendulum from its length and local gravitational acceleration using T = 2π√(L/g).

Pendulum Length

Gravitational Acceleration

m/s²

Tab to move between fields

Period

2.01 s

Frequency

0.5 Hz

Angular Frequency3.13 rad/s

How to Use This Calculator

Enter Pendulum Length and Gravitational Acceleration.
Review Period (s) and Frequency (Hz).
Use Angular Frequency (rad/s) to inform your decision.
Use the chart to visualize the results and explore different scenarios by adjusting inputs.

How the result changes with Gravitational Acceleration

Gravitational Acceleration	Period	Frequency
10	1.99 s	0.5 Hz
35	1.06 s	0.94 Hz
65	0.78 s	1.28 Hz
90	0.66 s	1.51 Hz

Pendulum Length: Length of the pendulum from the pivot to the center of mass.
Gravitational Acceleration: Local gravitational acceleration. Earth surface ≈ 9.81 m/s², Moon ≈ 1.62 m/s².

Identify Input Parameters
Pendulum Length = 1, Gravitational Acceleration = 9.81 = 2 input(s) provided
Calculate Period
Period = 2
2.0061 = 2.0061
Calculate Frequency
Frequency
0.4985 = 0.4985
Calculate Angular Frequency
Angular Frequency
3.132 = 3.132