GPA Calculator
Enter grades and credit hours for up to five courses to calculate your grade point average on a standard 4.0 scale.
How this calculator works
GPA is the weighted average of your grade points, weighted by the number of credit hours each course is worth — so a 4-credit A counts more than a 1-credit A.
Leave credits at 0 for any course row you don't need.
Understanding weighted vs. unweighted GPA
This calculator uses the standard unweighted 4.0 scale, where an A is worth 4.0 regardless of course difficulty. Some high schools also calculate a weighted GPA, giving extra points for honors or AP courses (sometimes up to 5.0 for an A), to reflect the added rigor of those classes.
When comparing GPAs between students or schools, it's worth checking whether weighted or unweighted figures are being compared, since a 4.2 weighted GPA and a 3.8 unweighted GPA aren't directly comparable without knowing the scale used.
A worked example
Four courses: an A (4.0) at 4 credits, a B+ (3.3) at 3 credits, an A- (3.7) at 4 credits, and a C (2.0) at 3 credits. Total quality points: (4.0 times 4) plus (3.3 times 3) plus (3.7 times 4) plus (2.0 times 3), which equals 16 plus 9.9 plus 14.8 plus 6, or 46.7. Total credits: 14. GPA equals 46.7 divided by 14, approximately 3.34.
Notice the C in a 3-credit course pulls the GPA down less than it would in a 4-credit course — credit weighting means the same letter grade impacts GPA differently depending on the course's credit value.
Understanding weighted vs. unweighted GPA
This calculator computes an unweighted GPA on the standard 4.0 scale, where an A is worth the same regardless of course difficulty. Many high schools also calculate a weighted GPA, which gives extra grade points for honors, AP, or IB courses (sometimes up to 5.0 for an A), reflecting their greater difficulty.
Colleges often recalculate applicants' GPAs using their own methodology for consistency across different high schools' grading systems, so your official transcript GPA and a college's recalculated GPA can differ from each other and from this calculator's result.
Frequently asked questions
Is this GPA scale used at every school?
The standard 4.0 scale is the most common in the US, but some schools use a 5.0 scale for honors/AP courses or different grade-point mappings — check your school's official scale for exact figures.
How do credit hours affect GPA?
Courses with more credit hours are weighted more heavily in the GPA calculation, since they represent more coursework.
What's the difference between weighted and unweighted GPA?
Unweighted GPA treats all courses equally on a 4.0 scale. Weighted GPA gives bonus points for honors, AP, or IB courses (often up to 5.0), reflecting their added difficulty.
How many courses can I include in this calculator?
This calculator handles up to 4 courses at once — for a full semester or year, run multiple calculations and average the results weighted by total credit hours.
What's the difference between weighted and unweighted GPA?
Unweighted GPA treats all courses equally on a 4.0 scale. Weighted GPA gives extra points for honors or AP-level courses, often allowing a maximum above 4.0.