Updated · Built and checked by the PlinzoTools team, formulas tested against published sources
Calculate semester, cumulative, and target GPA on the 4.0, 5.0, or 10.0 scale.
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Grade Point Average (GPA) is a credit-weighted average of your grades -- a semester with more high-credit courses at strong grades pulls your GPA up more than a single low-credit course would. This calculator handles three related but distinct questions: what's my GPA this semester, what's my cumulative GPA combining multiple semesters, and what GPA do I need in my remaining courses to hit a specific target by graduation.
Choose your grading scale (4.0, 5.0, or 10.0), then switch between the Semester, Cumulative, and Target GPA tabs depending on your question. For semester GPA, enter each course's grade points and credit hours. For cumulative GPA, combine a new semester's results with your existing GPA and credits. For target GPA, enter your current GPA, credits already earned, credits remaining, and your target -- the calculator solves for the average you need in those remaining credits.
GPA = Sum of (Grade Points × Credits) ÷ Total Credits
This is a credit-weighted average, not a simple average of grades -- a 4-credit course with an A affects your GPA twice as much as a 2-credit course with the same grade.
Required GPA = (Target GPA × Total Credits − Current GPA × Credits Earned) ÷ Credits Remaining
This solves algebraically for the average GPA you need across your remaining credits so that, combined with your already-earned credits at your current GPA, the overall result reaches your target. If the required figure comes out below 0, you've already achieved the target; if it exceeds your scale's maximum, the target isn't mathematically achievable in the credits remaining.
Students planning course loads to hit a scholarship, honors, or graduate-school GPA requirement. Anyone tracking whether a strong or weak semester meaningfully shifts their overall cumulative GPA. For a school-specific version of this same math, see the Harvard, High School, or Stanford GPA calculators, each using that institution's own grade scale and standing thresholds.
This calculator doesn't store your data between visits -- results are calculated fresh from what you enter each time. Grade-point scales vary by institution (some use 4.0, others 4.3, 5.0, or 10.0), so confirm your school's specific scale before relying on the result for an official decision.
Suppose you have a 3.4 GPA over 45 credits and just finished a semester with a 3.8 across 15 credits (all figures hypothetical). Your old quality points are 3.4 x 45 = 153 and the new ones are 3.8 x 15 = 57. Combined, that is 210 quality points over 60 credits, or a 3.50 cumulative GPA. Notice the new semester moved the total by only 0.10 even though it was a strong one, because it represents a quarter of your credits.
Try a second target example. With a 3.0 GPA over 30 credits, 30 credits left, and a goal of 3.4 overall, the required average is (3.4 x 60 - 3.0 x 30) / 30 = 3.8. That is demanding but possible on a 4.0 scale. If the answer came out at 4.2 on a 4.0 scale, the tool would tell you it is out of reach, which is your cue to consider a lower goal or to ask your school whether grade replacement or retakes could change the math.
The math is identical on every scale. Only the maximum changes, and with it the ceiling used to decide whether a target is achievable. A 5.0 scale is common where weighted grades are used, while a 10.0 scale appears in several countries' systems. Do not convert a GPA from one scale to another by simple proportion unless the institution you are applying to says that is acceptable, because their conversion tables often differ.
The output is a planning aid. Official GPA, honors cutoffs, and probation rules are set by your institution, so verify anything high stakes, such as a scholarship renewal, with your registrar or academic adviser.
Because courses carry different credit hours representing different amounts of coursework -- weighting by credits ensures a 4-credit course counts proportionally more toward your GPA than a 1-credit course, matching how most institutions actually calculate it.
It means the required GPA in your remaining credits would need to exceed your grading scale's maximum possible value (e.g. above 4.0 on a 4.0 scale) -- mathematically, no grade combination in the remaining credits could reach your stated target.
Yes -- the Cumulative GPA tab combines a new semester's quality points and credits with your existing GPA and credit total using the same credit-weighted formula.
You can enter the weighted grade points your school assigns for that course, provided you stay consistent with the scale you selected. For a built-in Honors and AP bonus system, the High School GPA calculator handles that directly.
A negative or zero requirement means your existing credits already put you at or above the target, so even very low grades in the remaining credits would not pull you below it.
No. Credits only set how much each course counts. A heavier load with weaker grades can lower your GPA, and a light load with strong grades can raise it.