GPA Calculator
Calculate your semester and cumulative GPA on the 4.0, 4.3 or 5.0 scale.
Your courses
Prior record (optional)
Choose your school's grade scale above: 4.0 (A+ capped at 4.0), 4.3 (A+ = 4.3), or 5.0 weighted for AP/IB courses (+1.0, capped at 5.0). Results are estimates — your school registrar is the official source. Need to plan a final exam? Try the final grade calculator.
GPA scale explainer (4.0 scale)
| Letter grade | Grade points | Meaning |
|---|---|---|
| A+ / A | 4.0 | Excellent |
| A− | 3.7 | Excellent |
| B+ | 3.3 | Good |
| B | 3.0 | Good |
| B− | 2.7 | Good |
| C+ | 2.3 | Satisfactory |
| C | 2.0 | Satisfactory |
| C− | 1.7 | Satisfactory |
| D+ | 1.3 | Passing, below average |
| D | 1.0 | Passing, below average |
| D− | 0.7 | Passing, below average |
| F | 0.0 | Failing |
On the 4.3 scale, A+ is worth 4.3 instead of 4.0. On the 5.0 weighted scale, the same letters are worth one point more (A = 5.0, B = 4.0, C = 3.0) for AP/IB courses. Always confirm your school's scale before using the number officially.
What is a GPA calculator?
A GPA calculator converts your course grades and credit hours into a grade point average — the single number schools and employers use to summarize your academic performance. Each letter grade maps to grade points (A = 4.0 on the classic scale), those points are weighted by each course's credit hours, and the average gives your semester GPA; folding in your prior record gives your cumulative GPA.
Credit weighting is the key idea students miss: a 4-credit course moves your GPA more than a 1-credit lab, so the calculator multiplies grade points by credits before averaging. This is exactly how registrars compute it — a straight average of letter grades without credit weighting would be wrong.
For a high school GPA, tap "High School GPA" above — it sets the unweighted 4.0 scale, where every course counts the same. For an honours GPA with extra points for harder courses (Honors +0.5, AP/IB +1.0), use our weighted GPA calculator instead.
Use the scale selector to match your school: 4.0 (A+ capped at 4.0), 4.3 (A+ = 4.3, common at many universities), or 5.0 weighted for AP/IB courses. The math is identical — only the grade-to-point mapping changes — so always confirm your school's scale before using the number officially. To work out what you need on a final exam, see the final grade calculator.
Results here are estimates based on the grades and credits you enter. Your school's registrar is the official source for your GPA, and policies on retakes, withdrawals, and grade scales vary by institution.
How the GPA calculator works
Grade points x credit hours, then averaged. Each letter grade maps to grade points (A = 4.0 on the classic scale), those points are weighted by each course's credit hours, and the average gives your semester GPA. Add your prior cumulative GPA and credits to see your updated cumulative GPA.
Use the scale selector to match your school: 4.0 (A+ capped at 4.0), 4.3 (A+ = 4.3), or 5.0 weighted for AP/IB courses. For a high school GPA, tap "High School GPA" — it sets the unweighted 4.0 scale. For honours and AP weighting, use the weighted GPA calculator.
Planning a final exam? Try the final grade calculator to see what score you need.
How to use the GPA calculator
- Choose your school's grade scale (4.0, 4.3, or 5.0 weighted).
- Enter each course's credit hours and select its letter grade. Add or remove rows with the buttons.
- Optionally enter your prior cumulative GPA and credits completed to see your updated cumulative GPA.
- Press Calculate GPA for your semester GPA, cumulative GPA, and total credits.
Frequently asked questions
Is GPA weighted by credit hours?
Yes. Each course contributes grade points multiplied by its credit hours, then the total is divided by total credits. A 4-credit course counts four times as much as a 1-credit course. This calculator does the weighting automatically.
What is the difference between semester and cumulative GPA?
Semester GPA covers only the current term's courses. Cumulative GPA includes every course you have ever taken, weighted by credits. Graduate schools and most employers look at cumulative GPA; scholarships often require you to keep both above a threshold.
Does an A+ count as 4.0 or 4.3?
It depends on your school — use the scale selector above: choose 4.3 if your school awards 4.3 for A+, or 4.0 if it caps A+ at 4.0. For AP/IB weighted courses, choose the 5.0 scale.
How do I raise my GPA quickly?
There is no shortcut, but the math favors high-credit courses: an A in a 4-credit class helps more than an A in a 1-credit class. Retaking a course you failed can also help a lot, since many schools replace the old grade in the GPA calculation — check your school's retake policy.
Do failed courses count in GPA?
Yes — an F earns 0 grade points but its credits still count in the divisor, which drags the average down significantly. Withdrawing (a W grade) usually does not affect GPA, though it has other consequences, so talk to an advisor before deciding.
What is the difference between unweighted and weighted GPA?
Unweighted GPA caps at 4.0 and treats every course the same. Weighted GPA adds extra points for harder courses (Honors +0.5, AP/IB +1.0) and caps at 5.0. Use our weighted GPA calculator for the weighted version.
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