GPA Calculator | Weighted & Cumulative GPA with What-If
Calculate weighted GPA for a semester or cumulatively across all years. Supports letter grades with +/− and custom grading scales. Built-in what-if analyzer shows the exact grades needed to reach your GPA target.
Semester Courses
Prior Cumulative GPA (optional — leave blank for semester-only)
What Is the GPA Calculator | Weighted & Cumulative GPA with What-If?
This GPA calculator computes weighted semester GPA from letter grades and credit hours using the standard 4.0 scale. Enter your current semester, optionally add previous cumulative data for an overall GPA, and use the built-in what-if analyzer to find exactly what grade you need in an upcoming course to hit your target.
- ›Weighted GPA, heavier credit courses contribute more to your GPA than lighter courses. A 4-credit A outweighs a 3-credit A− by design.
- ›Cumulative GPA, optionally input your prior GPA and total credits to compute the combined cumulative GPA across all semesters.
- ›W/P/NP handling, Withdrawal, Pass, and No Pass grades are automatically excluded from the GPA calculation but are still listed in the breakdown.
- ›What-if analyzer, enter a target GPA and upcoming course credits to instantly find the minimum grade needed to achieve that target.
- ›Color-coded results, green for ≥ 3.5 (Dean's List territory), amber for 2.5–3.5, red below 2.5.
Formula
Semester GPA (Weighted)
GPA = Σ(Grade Points × Credits) / Σ Credits
W (Withdrawal), P (Pass), NP (No Pass) are excluded from GPA calculation.
Cumulative GPA
Cumulative GPA = (Sem QP + Prev GPA × Prev Credits) / (Sem Credits + Prev Credits)
QP = Quality Points = Grade Points × Credits for that course.
| Grade | Points | Grade | Points | Grade | Points |
|---|---|---|---|---|---|
| A+ | 4.0 | B+ | 3.3 | C+ | 2.3 |
| A | 4.0 | B | 3.0 | C | 2.0 |
| A− | 3.7 | B− | 2.7 | C− | 1.7 |
| D+ | 1.3 | D | 1.0 | D− | 0.7 |
| F | 0.0 | W | Excl | P/NP | Excl |
How to Use
- 1
Enter each course with its name, letter grade, and credit hours.
- 2
For cumulative GPA, enter your previous GPA and total credits completed.
- 3
Click Calculate GPA to see semester GPA, cumulative GPA, and course breakdown.
- 4
Use the What-If analyzer to find the grade needed in an upcoming course to reach your target GPA.
- 1Enter semester courses: For each course, enter the name, select the letter grade from the dropdown, and enter credit hours. Add additional courses with the "+ Add Course" button.
- 2Add prior GPA (optional): For cumulative GPA, fill in your prior GPA and the number of credits completed before this semester.
- 3Calculate GPA: Click Calculate GPA. The semester GPA, equivalent letter grade, quality points breakdown, and optional cumulative GPA are all shown immediately.
- 4Use the What-If analyzer: Enter a target semester GPA and the number of credits in an upcoming course to find the grade required to reach your goal.
Example Calculation
Example: 4-course semester
| Course | Grade | Points | Credits | Quality Points |
|---|---|---|---|---|
| Calculus II | A | 4.0 | 4 | 16.0 |
| Physics 101 | B+ | 3.3 | 3 | 9.9 |
| English Comp | A− | 3.7 | 3 | 11.1 |
| History Survey | B | 3.0 | 3 | 9.0 |
| Total | 13 | 46.0 | ||
GPA = 46.0 / 13 = 3.538
Semester GPA: 3.538 (A−)
Understanding GPA | Weighted & Cumulative GPA with What-If
Understanding the 4.0 Scale
The 4.0 GPA scale is the standard at most US colleges and universities. Each letter grade maps to a grade point value (A = 4.0, B = 3.0, etc.) and weighted by the number of credit hours the course carries. A heavier course carries more influence. This is why a four-credit major course matters more to your GPA than a one-credit physical education elective, even if you earn the same letter grade in both.
The Plus/Minus System
Many institutions use plus/minus grading, which adds granularity to the scale. An A− (3.7) and an A+ (4.0) are both "A" grades on the surface, but they contribute meaningfully different quality points in a GPA calculation. Some institutions cap A+ at 4.0 (no bonus points); others award 4.3 for an A+. This calculator uses the most common convention where both A and A+ equal 4.0.
Strategies for GPA Improvement
- ›Front-load difficult courses: taking hard courses early when GPA headroom is large minimizes damage from any poor grades.
- ›Repeat failed courses: if your institution offers grade forgiveness, retaking an F can dramatically improve your cumulative GPA.
- ›Take more credit hours to accelerate recovery: a 4.0 in a 4-credit course moves the needle more than a 4.0 in a 1-credit course.
- ›Use the what-if tool: calculate exactly what GPA you need this semester to reach a target before studying — then prioritize accordingly.
Frequently Asked Questions
How is weighted GPA calculated?
Each course earns Quality Points = Grade Points × Credits. GPA = Total QP / Total Credits.
- ›A (4.0) in 4-credit course = 16.0 QP
- ›B+ (3.3) in 3-credit course = 9.9 QP
- ›GPA = (16.0 + 9.9) / (4 + 3) = 25.9 / 7 = 3.70
What counts as a W, P, or NP and how do they affect GPA?
- ›W (Withdrawal): does not affect GPA, appears on transcript.
- ›P (Pass): does not affect GPA, credits may count toward graduation.
- ›NP (No Pass): does not affect GPA, credits do not count toward graduation.
- ›F (Fail): counts as 0.0 and significantly lowers GPA.
- ›Repeated courses: many schools replace the original grade with the new grade (check your institution's policy).
What is a good GPA for graduate school or jobs?
- ›4.0: Perfect GPA; often Dean's List or President's List distinction.
- ›3.7–3.9: Summa Cum Laude territory; competitive for top graduate programs.
- ›3.5–3.6: Magna Cum Laude; strong across most fields.
- ›3.0–3.4: Solid GPA; meets most minimum requirements.
- ›Below 3.0: May limit access to some graduate programs and employer cutoffs.
Can I raise my GPA significantly in one semester?
Impact diminishes as total credits increase:
- ›30 prior credits (2.8) + perfect 15-credit semester → 3.04 cumulative.
- ›60 prior credits (2.8) + perfect 15-credit semester → 2.95 cumulative.
- ›90 prior credits (2.8) + perfect 15-credit semester → 2.88 cumulative.
- ›Use the cumulative GPA section and what-if tool to model your specific situation.
You Might Also Like
Explore 360+ Free Calculators
From math and science to finance and everyday life — all free, no account needed.