GPA calculator with weighted and unweighted options.
Use this page to estimate semester GPA, compare unweighted versus weighted GPA, and project cumulative GPA after a new term. Because schools use different grade scales, this tool is for planning and self-checking rather than replacing an official transcript.
Course list
Cumulative GPA planner
Grade point table
| Letter | Standard 4.0 | Example weighted |
|---|---|---|
| A | 4.0 | 5.0 |
| A- | 3.7 | 4.7 |
| B+ | 3.3 | 4.3 |
| B | 3.0 | 4.0 |
| C | 2.0 | 3.0 |
| D | 1.0 | 2.0 |
| F | 0.0 | 0.0 |
Unweighted GPA usually caps at 4.0. Weighted GPA may add extra points for honors, AP, IB, or dual-enrollment courses, but every school sets its own policy.
How GPA works
Semester GPA and cumulative GPA are both credit-weighted averages. Multiply the grade points for each course by its credit hours, add those values, and divide by total graded credits.
Unweighted GPA ignores course difficulty boosts. Weighted GPA includes them if your school assigns extra grade points for advanced classes.
Semester GPA vs cumulative GPA
Semester GPA uses only the classes in one term. Cumulative GPA uses all included graded credits from your transcript. If one semester has more credits, it affects the cumulative GPA more strongly.
Worked examples
- Term GPA: A in 3 credits and B in 4 credits gives (4.0 * 3 + 3.0 * 4) / 7 = 3.43.
- Weighted term GPA: an honors A worth 5.0 in 3 credits and a standard B worth 3.0 in 4 credits gives (5 * 3 + 3 * 4) / 7 = 3.86.
- Cumulative projection: 30 completed credits at 3.2 GPA plus 15 new credits at 3.6 gives (30*3.2 + 15*3.6) / 45 = 3.33.
- Equal semester GPAs can mislead: a 12-credit semester at 4.0 and an 18-credit semester at 3.0 do not average to 3.5. Credit weighting matters.
- Percent to letter caution: a 92 may be an A- at one school and an A at another, so always check the local grading scale.
Common GPA mistakes
- Averaging semester GPAs directly without considering credit totals.
- Using the wrong plus/minus scale for your school.
- Mixing weighted and unweighted numbers in the same comparison.
- Assuming withdrawals, pass/fail classes, or transfer credits count the same everywhere.
Why this calculator method works in practice
Students often treat calculators as answer machines, but the strongest results come from using them as verification tools. Start by identifying the problem type, then confirm units and assumptions before entering values. This step matters because the same numbers can represent different scenarios depending on units, rounding rules, and interpretation context. In homework and exam settings, many wrong answers are caused by setup errors rather than arithmetic errors.
A practical workflow is: define the target quantity, list known inputs, choose the matching formula, estimate a reasonable range, then calculate. After calculation, compare output against your estimate and course context. If the result is far outside expectations, revisit assumptions first. This method is especially helpful when working across algebra, statistics, percentage changes, and geometric formulas where sign, order, and units can change the meaning of the same expression.
For long-term improvement, pair calculator use with explanation. Write one sentence describing why the chosen method fits the question and one sentence explaining what the result means. This habit turns isolated computations into transferable reasoning skills. It also improves consistency between classwork, quizzes, and self-study because you are validating process quality, not only the final number.
FAQ
Can this page calculate percentage grades too?
It is better to convert percentages into letter grades based on your school's policy first. The grade-point mapping is what drives GPA.
Does this replace my school's official GPA?
No. Use it for planning and checking. Official GPA depends on the registrar's rules, repeated-course policies, and transcript conventions.
Why compare weighted and unweighted GPA?
It helps you understand how advanced-course policies affect the number, especially when comparing admissions criteria or scholarship thresholds.
How should I check my result before submitting?
Verify units, confirm the formula matches the question, and estimate whether the final value is reasonable for the scenario.
Practice with Examples
Click any example below to see how different course combinations affect your GPA.
Study advice
Track classes in a simple sheet while the term is in progress. Recording credits and grade points as you go makes final GPA checks fast and reduces last-minute mistakes. Related reading: How to Calculate GPA Step by Step and Weighted vs Unweighted GPA.