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`T = 2pisqrt( L /(9.80665 m/s^2))`

Enter a value for all fields

The **Period of a Pendulum** calculator computes the period (T) of a pendulum based on the length (L) and acceleration due to gravity (g) .

**INSTRUCTIONS:** Choose the preferred units and enter the following:

- (
**L**) This is the length of the pendulum.

**Period (T):** The calculator returns the period in seconds (s). However, this can be automatically converted to compatible units via the pull-down menu. Note, this calculator uses the constant acceleration due to gravity at sea level.

The Period of a Pendulum equation calculates the period of a simple pendulum given that the amplitude is small.

This equation is derived from the equation **T=2π/ω** where **ω**=`sqrt(g/L)`. After substitution for **ω** , we get the resulting equation as shown above

Young, Hugh and Freeman, Roger. University Physics With Modern Physics. Addison-Wesley, 2008. 12th Edition, (ISBN-13: 978-0321500625 ISBN-10: 0321500628 ) Pg 437, eq 13.34