Pendulum Period
Calculate the period and frequency of a simple pendulum, including a large-amplitude correction, free online.
Acerca de esta calculadora
For small swings the period is T = 2π√(L ÷ g). For larger amplitudes θ₀ the period grows: T ≈ T₀(1 + θ₀²/16 + 11θ₀⁴/3072). A pendulum about 0.994 m long on Earth has a period of 2 s.