Science CalculatorsPrivate by design
Pendulum Period Calculator
Enter a pendulum's length to calculate its period (time for one full swing) and frequency.
How to use this tool
- 1Enter the pendulum length in meters.
- 2See the calculated period and frequency.
Frequently asked questions
Does the pendulum's mass or swing angle matter?+
Mass doesn't affect the period at all. Swing angle only matters for large angles — this formula assumes a small-angle swing (roughly under 15-20°), the standard simple pendulum approximation.
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