Common GPA Calculation Mistakes
3 min read · Updated 2026-06-15
Forgetting credit hours
Averaging grade points without weighting by credits gives the wrong GPA. A 4-credit course must count more than a 1-credit course.
Mixing scales
Don’t average a 10-point CGPA subject with a 4.0 GPA course. Convert first using the conversion tools.
Pass/fail and withdrawals
Pass/No-Pass and Withdrawn courses usually carry no grade points and should be left out of the average. Our calculators ignore blank grades automatically.