Simple Pendulum Calculator
Find a pendulum's period and frequency from its length.
A simple pendulum's swing period depends only on its length (for small swings).
The math behind it
T = 2π√(length ÷ g). Mass and swing amplitude don't affect it (for small angles).
Worked example
1 m pendulum → period 2.01 s.
FAQ
Why mass doesn't matter?
Gravity accelerates all masses equally, so it cancels out.