Period of a 1 m Pendulum on the Moon
On the Moon (g = 1.62 m/s²), a 1 m pendulum swings with a period of about 4.94 seconds — more than twice Earth's value.
How to use this tool
- Enter pendulum length l, gravity g and amplitude θ in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your period (small-angle approx.) and the full breakdown beneath it.
The same pendulum swings much more slowly on the Moon because its weaker gravity means less restoring force.
Frequently asked questions
- What is the period of a 1-metre pendulum on Earth?
- Approximately 2.006 seconds, which is why 1-metre pendulums were historically used in grandfather clocks (half-period ≈ 1 s per swing).
- Does mass affect the period?
- No — the small-angle period T = 2π√(L/g) is entirely independent of mass.