<function name="Length" parent="Vector" type="classfunc"> <description> Returns the [Euclidean length](https://en.wikipedia.org/wiki/Euclidean_vector#Length) of the vector: &radic;(x&sup2; + y&sup2; + z&sup2;). <warning> This is a relatively expensive process since it uses the square root. It is recommended that you use <page>Vector:LengthSqr</page> whenever possible. </warning> </description> <realm>Shared</realm>⤶ <realm>Shared and Menu</realm>⤶ <rets> <ret name="" type="number">Length of the vector.</ret> </rets> </function> <example> <description>Gets the length of the vector.</description> <code>print( Vector( 15, 16, 17 ):Length() )</code> <output> ``` 27.748874664307 ``` </output> </example>