Physics

Simple Pendulum Calculator

Calculate period and frequency of a pendulum

Solve For*

Pendulum Length

Gravity Acceleration

m/s²

Period

Result

2.0061s

Frequency

0.4985Hz

Number of oscillations per second

T = 2π × √(L / g)
L = g × (T / 2π)²
g = L × (2π / T)²
f = 1 / T

Valid for small angles (θ < 15°)

Supported inputs

Input	Description
Solve For	period · length · gravity
Pendulum Length (m)	The length of the pendulum
Gravity Acceleration (m/s²)	The acceleration due to gravity
Period (s)	The time taken for one complete oscillation

Formula

T = 2π × √(L / g)
L = g × (T / 2π)²
g = L × (2π / T)²
f = 1 / T

Valid for small angles (θ < 15°)

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