Ideal Pendulum Period Calculator
Estimate a simple pendulum’s small-angle period.
Your inputs
Calculation results
Formula & assumptions
Period = 2π√(length/gravity); small angles and negligible friction assumed.
Values use the specified units. Calculations use floating-point arithmetic. Check input measurements and formula assumptions before applying the result.
Compare your scenarios
Save up to five results to compare changes side by side. Scenarios stay in this tab until you clear or reload it.
Using Ideal Pendulum Period Calculator
Estimate a simple pendulum’s small-angle period.
- Enter length, gravity using the units printed under each field.
- Choose Calculate, or enable live updates. Review the result labels and formula assumptions.
- Save scenarios to compare up to five variations, then copy the report or download JSON or CSV.
Example
Length: 1 meters Gravity: 9.80665 meters per second squared Period · seconds: 2.0064093 Frequency · hertz: 0.4984028
Questions & answers
What does Ideal Pendulum Period Calculator calculate?
Estimate a simple pendulum’s small-angle period.
Which units should I enter?
Length uses meters. Gravity uses meters per second squared. Convert values to these units before calculating.
Which formula does it use?
Period = 2π√(length/gravity); small angles and negligible friction assumed.
What does the included example show?
Length: 1 meters; Gravity: 9.80665 meters per second squared. Result: Period · seconds = 2.0064093; Frequency · hertz = 0.4984028.
Can I compare different settings?
Yes. Save a scenario, change the inputs and save another result. Up to five scenarios are compared in this tab; they disappear when you reload or leave.
Can I export the calculation?
Copy the JSON report or download JSON and CSV with inputs, result labels and numeric values. Processing uses local JavaScript; no calculation request is sent to our server. Displayed values use up to 10 significant digits; exports retain JavaScript numeric precision.
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