:term:`CFOUR_GEO_CONV <CFOUR_GEO_CONV (CFOUR)>`
"""""""""""""""""""""""""""""""""""""""""""""""

      Specifies the convergence criterion for geometry optimization. The optimization terminates when the RMS gradient is below :math:`10^{-N}` Hartree/bohr, where :math:`N` is the specified value. **PSI4 Interface:** Geometry optimizations run through PSI (except in sandwich mode) use PSI's optimizer and so this keyword has no effect. Use :ref:`optking <apdx:optking>` keywords instead, particularly :term:`G_CONVERGENCE <G_CONVERGENCE (OPTKING)>` =CFOUR, which should be equivalent except for different internal coordinate definitions.

      * **Type**: integer
      * **Default**: 5

