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*Center of mass*, also known as center of gravity, may be located using the following process:

* Create the structural model and run analysis.
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* Use [interactive database editing|kb:interactive database editing] to export, into Excel, the following tables:
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** Model Definition > Connectivity Data > Joint Coordinates > *Table: Joint Coordinates*
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** Analysis Results > Joint Output > Joint Masses > *Table: Assembled Joint Masses*
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* In Excel, calculate the location of the center of mass for each coordinate direction. Use a weighted average where assembled joint [mass|kb:Mass] is the weight. For example, the x-coordinate of center of mass (COM) may be calculated as follows:

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where:
{column} {section}

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* x - x coordinate of individual joints

* m - mass of individual joints
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h1. See Also

* [Center-of-gravity determination|tutorials:Center-of-gravity determination] tutorial