Your unweighted GPA is the most universally understood version of your grade point average. Unlike weighted GPA, it doesn't adjust for course difficulty — every class is graded on the same 4.0 scale regardless of whether it's standard, honors, AP, or IB. Colleges use it as a consistent benchmark across students from different schools with different course offerings.
Calculating it is straightforward once you understand the formula. This guide walks through the exact steps, the grade point scale, worked examples, and the key differences between unweighted and weighted GPA.
Unweighted GPA = Total Quality Points ÷ Total Credit Hours
Quality points are calculated by multiplying the grade point value of each course by the number of credit hours it carries. You add up the quality points from all courses, then divide by the total credit hours attempted.
Formula: GPA = Σ (Grade Points × Credit Hours) ÷ Σ Credit Hours
Every letter grade maps to a specific number on the 4.0 scale. This is the conversion most US high schools and colleges use for unweighted GPA:
| Letter Grade | Grade Points | Percentage Range |
|---|---|---|
| A+ / A | 4.0 | 93–100% |
| A- | 3.7 | 90–92% |
| B+ | 3.3 | 87–89% |
| B | 3.0 | 83–86% |
| B- | 2.7 | 80–82% |
| C+ | 2.3 | 77–79% |
| C | 2.0 | 73–76% |
| C- | 1.7 | 70–72% |
| D+ | 1.3 | 67–69% |
| D | 1.0 | 63–66% |
| D- | 0.7 | 60–62% |
| F | 0.0 | Below 60% |
Note: Some schools award A+ a value of 4.3 rather than 4.0. If your school uses this policy, your maximum unweighted GPA can technically exceed 4.0. Most schools cap A+ at 4.0 for unweighted calculations — check your school's handbook to confirm.
Here's a full worked example using one semester of college courses:
| Course | Grade | Credit Hours | Grade Points | Quality Points |
|---|---|---|---|---|
| English Composition | A | 3 | 4.0 | 12.0 |
| Calculus I | B+ | 4 | 3.3 | 13.2 |
| Introduction to Psychology | A- | 3 | 3.7 | 11.1 |
| Chemistry Lab | B | 1 | 3.0 | 3.0 |
| General Chemistry | B- | 3 | 2.7 | 8.1 |
Total credit hours: 3 + 4 + 3 + 1 + 3 = 14
Total quality points: 12.0 + 13.2 + 11.1 + 3.0 + 8.1 = 47.4
Unweighted GPA: 47.4 ÷ 14 = 3.39
Skip the manual math — enter your grades and credits for an instant result.
Use the GPA Calculator →Your cumulative GPA combines all semesters together — not by averaging the semester GPAs, but by pooling all quality points and all credit hours and dividing once. Averaging semester GPAs would give equal weight to a 4-credit semester and a 16-credit semester, which is incorrect.
Here's a two-semester example:
| Semester 1 | Semester 2 | Cumulative | |
|---|---|---|---|
| Credit Hours | 14 | 15 | 29 |
| Quality Points | 47.4 | 51.0 | 98.4 |
| GPA | 3.39 | 3.40 | 3.39 |
Cumulative GPA = 98.4 ÷ 29 = 3.39
Even though both semesters happened to have similar GPAs here, the cumulative calculation always uses total quality points divided by total credits — never an average of the semester GPAs themselves.
Unweighted GPA treats every course the same. An A in AP Calculus and an A in a standard elective both contribute 4.0 grade points per credit. Weighted GPA adds extra grade points for more challenging courses — typically +0.5 for Honors and +1.0 for AP or IB — before calculating the average. This allows weighted GPAs to exceed 4.0.
| Feature | Unweighted GPA | Weighted GPA |
|---|---|---|
| Scale | 0.0 – 4.0 | 0.0 – 5.0 (typically) |
| Course difficulty | Not reflected | Reflected via bonus points |
| Max value | 4.0 (or 4.3 at some schools) | 5.0 for AP/IB A grades |
| Used by colleges for comparison | Yes — standardized | Varies — recalculated by some schools |
Many colleges recalculate your GPA using their own formula when reviewing your application, stripping out weighting bonuses and sometimes excluding certain course types. This is why your unweighted GPA often ends up being the number that matters most in a standardized admissions comparison — even if you have a strong weighted GPA.
Not all grades affect your GPA equally. A grade in a 4-credit course contributes four times as many quality points as a grade in a 1-credit course. This means your performance in high-credit required courses — intro science sequences, writing intensives, core major requirements — has an outsized effect on your GPA compared to low-credit labs or electives.
Practically speaking: earning an A in a 4-credit course instead of a B raises your quality points by 4.0 (from 12.0 to 16.0). Earning an A instead of a B in a 1-credit lab raises quality points by only 1.0. If you're trying to move your GPA, prioritizing effort in high-credit courses is more efficient than spreading effort evenly across all classes.
For a deeper explanation of how different credit values affect GPA math, see How to Calculate GPA with Different Credit Hours.
Averaging semester GPAs instead of pooling quality points. If you earned a 3.5 in a 12-credit semester and a 3.5 in a 15-credit semester, your cumulative GPA is still 3.5 — but if the semesters had different GPAs, averaging the two semester numbers gives you the wrong answer. Always use total quality points ÷ total credits.
Including pass/fail courses in the calculation. Pass/fail courses typically don't generate quality points and don't affect GPA. They add credits toward graduation without changing the average. Confirm with your registrar which courses on your record are pass/fail excluded.
Using percentage grades instead of grade points. A 91% in a class doesn't mean 91 grade points. It maps to an A- (3.7 grade points) on the standard scale. Always convert percentages to letter grades, then to grade points before calculating.
Forgetting withdrawn or repeated courses. A W (withdrawal) typically doesn't affect GPA. A repeated course may or may not replace the original grade depending on your school's policy. Both W's and repeated grades can affect your credit hours, which affects your GPA calculation. Check your transcript carefully.
Colleges use unweighted GPA as a baseline for comparison because it removes the variation in how schools weight advanced courses. Some high schools weight aggressively; others don't weight at all. Unweighted GPA gives admissions officers a common denominator across applicants from thousands of different schools.
That said, context still matters. A 3.5 unweighted GPA from a rigorous high school with 6 AP courses reads differently than a 3.5 from a school with limited advanced options. Many colleges recalculate your GPA themselves using a standardized method — often the UC system's formula or their own internal scale — so the GPA your counselor reports and the GPA the college uses may differ slightly.
If you're wondering whether your GPA is competitive for specific types of programs, see What GPA Do You Need to Graduate College? for program-specific benchmarks.
| Unweighted GPA | Letter Grade Equivalent | General Standing |
|---|---|---|
| 3.7 – 4.0 | A / A- | Excellent — competitive for selective schools |
| 3.3 – 3.69 | B+ / A- | Strong — solid range for most 4-year universities |
| 3.0 – 3.29 | B / B+ | Good — meets requirements at most schools |
| 2.7 – 2.99 | B- / B | Average — may limit options at selective schools |
| 2.0 – 2.69 | C+ / C | Below average — minimum threshold at many colleges |
| Below 2.0 | C / D | Academic probation risk at most institutions |
Want to see what your GPA looks like with different grades, or how many A's you'd need to reach a target?
See Weighted vs. Unweighted Side by Side →