On a standard unweighted 4.0 grade point average scale, a C+ letter grade is mathematically equivalent to a 2.3 GPA (where a standard C is 2.0 and a B- or C+ spans the 2.3 threshold). In percentage terms, a C+ usually corresponds to a score between 77% and 79%. While a C+ passing grade grants course credit, maintaining multiple grades at this level drops a cumulative GPA below competitive thresholds, signaling an area that requires academic improvement or targeted tutoring support.