GPA Calculator

Calculate semester GPA, cumulative GPA, weighted GPA with AP/IB/Honors, and find out exactly what grade you need on your final. Free, no signup.

Semester GPA Calculator
Add your courses for this semester — with grades, credit hours, and optional weighting (AP/IB/Honors).
Course Name Grade Credits Type
0.00
Semester GPA (4.0 scale)
0
Total Credits
0
Quality Points
Weighted GPA
0
Courses
Cumulative GPA Calculator
Enter your current cumulative GPA and credits already completed, then add this semester's courses to see your new overall GPA.
Your GPA before this semester (leave 0 if first semester)
Total credit hours completed before this semester
This Semester's Courses
Course Name Grade Credits Type
0.00
New Cumulative GPA
0.00
This Semester GPA
0
Total Credits
0.00
Previous GPA
0.00
GPA Change
Grade Needed on Final Calculator
Find out exactly what score you need on your final exam or remaining assignment to reach your target course grade.
Your grade in the course right now
The grade you want to finish with
How much the final is worth (e.g. 30 for 30%)
Usually 100, but some finals award bonus points
0%
Required final exam score

4.0 GPA Scale — Complete Reference Table

The 4.0 scale is the standard for US high schools and universities. Plus/minus grades add specificity — an A- is 3.7 points, not 4.0. This difference is significant when calculating GPA: a student who earns all A- grades ends up with a 3.7 GPA, not a 4.0.

Letter GradePercentageGPA Points+1.0 (AP/IB)
A+97–100%4.05.0
A93–96%4.05.0
A-90–92%3.74.7
B+87–89%3.34.3
B83–86%3.04.0
B-80–82%2.73.7
C+77–79%2.33.3
C73–76%2.03.0
C-70–72%1.72.7
D+67–69%1.31.3
D63–66%1.01.0
D-60–62%0.70.7
F0–59%0.00.0
GPA RangeLetterClassification
3.9–4.0ASumma Cum Laude
3.7–3.89A-Magna Cum Laude
3.5–3.69B+Cum Laude
3.0–3.49BGood Standing
2.5–2.99B-/C+Satisfactory
2.0–2.49CMinimum Standing
Below 2.0D/FAcademic Probation

💡 Weighted GPA note: For AP and IB courses, schools typically add 1.0 to the grade points, allowing a maximum weighted GPA of 5.0. Honors courses usually add 0.5. However, this varies by school — some schools only weight AP/IB, and some don't weight at all. Always check your school's specific policy.

How GPA Is Calculated — The Formula Explained

GPA is a credit-weighted average of your grade points, not a simple average. This means a course worth 4 credits has twice the impact on your GPA as a course worth 2 credits.

GPA = Σ (Grade Points × Credit Hours) ÷ Σ (Credit Hours)

Grade Points for each course = the letter grade's point value × the number of credit hours.

Worked Example

CourseGradeCreditsPoints × Credits
CalculusA (4.0)416.0
English LitB+ (3.3)39.9
ChemistryA- (3.7)414.8
HistoryB (3.0)39.0
Totals1449.7

GPA = 49.7 ÷ 14 = 3.55

Why You Can't Just Average Your Semester GPAs

Students often make the mistake of averaging semester GPAs to find their cumulative GPA. This only works if every semester had the same number of credit hours. If Semester 1 had 12 credits and Semester 2 had 18 credits, Semester 2 should carry more weight in the cumulative average. The correct method is to use total quality points ÷ total credit hours across all semesters — which is what the Cumulative GPA tab above does automatically.

How to Raise Your GPA — What the Math Actually Says

Raising your GPA gets harder the more credits you've completed. This is because your existing grades already represent a large pool of quality points — new semesters have diminishing influence on the cumulative GPA.

Credits CompletedSemester CreditsAll A's Semester GPA = 4.0New Cumulative GPA (from 2.5)
30 credits done15 new credits4.0 semester≈ 2.83
60 credits done15 new credits4.0 semester≈ 2.73
90 credits done15 new credits4.0 semester≈ 2.68
120 credits done15 new credits4.0 semester≈ 2.66

Key insight: Starting from a 2.5 GPA, even earning straight A's for a full semester only moves you to around 2.83 after 30 credits. This is why GPA recovery is a multi-semester commitment, and why it's so important to protect your GPA in early semesters before you have many credits to average against.

💡 Most effective GPA strategies: Retake courses where you received a D or F if your school allows grade replacement. Focus on high-credit courses for maximum impact. Consider taking easier electives to build a buffer. And use the Grade Needed calculator above to know exactly what you need on finals before you stop studying.

Frequently Asked Questions

How is GPA calculated?
GPA = Sum(grade points × credit hours) ÷ Sum(credit hours). Each course's grade is converted to a point value (A = 4.0, B = 3.0, etc.), multiplied by its credit hours, and the total is divided by total credit hours. It's a weighted average where higher-credit courses have more impact on your GPA.
What is the difference between weighted and unweighted GPA?
Unweighted GPA uses a standard 4.0 scale where grade points are the same regardless of course difficulty. Weighted GPA adds bonus points for harder courses — typically +0.5 for Honors and +1.0 for AP/IB — allowing a maximum of 5.0. Colleges consider both, but use the context of your course load when evaluating weighted GPA.
What is a good GPA?
High school: 3.5-4.0 is strong for most college applications. Top universities expect 3.8+ unweighted. College: 3.0 is the minimum for most graduate programs and job GPA requirements. 3.5+ is considered strong. 3.7+ is expected for competitive graduate schools and law/medical programs.
How do I calculate cumulative GPA?
Cumulative GPA = (Previous quality points + New semester quality points) ÷ (Previous total credits + New semester credits). You can't just average your semester GPAs unless all semesters had identical credit loads. Use the Cumulative GPA tab above — enter your existing GPA and credits, then add this semester's courses.
What grade do I need on my final exam?
Required final score = (Target grade % – Current grade % × (1 – Final weight %)) ÷ Final weight %. Use the Grade Needed tab above for instant calculation. If the required score comes out above 100%, it means you can no longer reach your target — but the calculator will tell you the highest grade you can still achieve.
What GPA do I need for Latin honors?
Common thresholds: Cum Laude (With Honors): 3.5. Magna Cum Laude (With High Honors): 3.7. Summa Cum Laude (With Highest Honors): 3.9-4.0. These vary by institution — some schools use class rank percentiles instead of fixed GPA cutoffs.
How do plus and minus grades affect GPA?
Significantly. An A- is 3.7, not 4.0 — a student with all A- grades has a 3.7 GPA, not a 4.0. A B+ is 3.3, not 3.0. Many students are surprised how much plus/minus grading affects their GPA calculation compared to simple letter grades. Check whether your school awards A+ grades and whether they're valued at 4.0 or 4.3.
Can one bad semester significantly lower my cumulative GPA?
Yes — especially early on when fewer total credits are in the calculation. A 2.0 semester in your first semester (15 credits) is extremely hard to recover from because each new semester adds only 15 credits against those same 15 already dragging you down. Later in your studies, a bad semester has less percentage impact. Use the Cumulative GPA tab to model exactly how much any scenario moves your overall GPA.

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