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Simple Pendulum Period Calculator

Use this online simple pendulum period calculator with labeled inputs and a worked example. T = 2π√(L/g).

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pendulum oscillation period online

Use simple pendulum period calculator online with the physical quantities shown below. Small-angle point-mass pendulum; neglects damping and string mass.

How to use it

Enter Pendulum length (m). Set Gravitational acceleration (m/s²). Select Calculate, check the result units, then copy or download the JSON result.

Options and example settings

OptionChoices / valueExample default
Pendulum length (m)Main input. Decimal or scientific notation. Positive values only. 1
Gravitational acceleration (m/s²)Option. Decimal or scientific notation. Positive values only. 9.80665

Calculation method

T = 2π√(L/g)

Worked examples

Worked case for simple pendulum period calculator. Small-angle point-mass pendulum; neglects damping and string mass.

Simple Pendulum Period Calculator — example with explicit inputs

Settings: Gravitational acceleration (m/s²): 9.80665

Input:

1

Expected result for the example input and options:

Output:

{
  "period_s": 2.0064092925890407
}

Limitations and common mistakes

  • Small-angle point-mass pendulum; neglects damping and string mass.
  • Match every input to its displayed unit; scientific notation such as 1e-6 is accepted.
  • This is the documented idealized model; real systems may require additional effects and measurement uncertainty.

Frequently asked questions

How can I use pendulum oscillation period online?

Enter Pendulum length (m). Set Gravitational acceleration (m/s²). Select Calculate, check the result units, then copy or download the JSON result.

Which model does Simple Pendulum Period Calculator use?

T = 2π√(L/g). Small-angle point-mass pendulum; neglects damping and string mass.

Technical references

Where is my input processed?

The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.

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