How to Calculate Unweighted GPA
Learn to calculate your grade point average on the standard 4.0 scale. We cover the step-by-step math for both high school semesters and college credit hours.
An unweighted GPA is the average of your class grades on a scale up to 4.0, calculated entirely without bonus points for course difficulty.
Because unweighted GPA does not award extra points for AP or Honors courses, it strictly caps at 4.0 at nearly all schools. You can find the exact decimal value for each letter grade in the conversion chart below.
What unweighted GPA means (and what it ignores)
An unweighted GPA measures your academic performance using only the raw letter grades you earned. It actively ignores the difficulty of your classes, meaning an A in remedial math is worth the exact same points as an A in AP Calculus.
College admissions officers request unweighted GPAs to level the playing field. High schools use vastly different weighted scales—some allow a maximum of 4.5, some 5.0, and some even 6.0. By stripping away those local weighting rules, universities can see a standard, comparable baseline.
Your unweighted GPA represents your consistency. The college will look at your transcript separately to evaluate your course rigor.
| Letter | Typical % (varies) | Unweighted points |
|---|---|---|
| A+ | 97–100 | 4.0 (sometimes 4.3 at a few colleges) |
| A | 93–96 | 4.0 |
| A- | 90–92 | 3.7 |
| B+ | 87–89 | 3.3 |
| B | 83–86 | 3.0 |
| B- | 80–82 | 2.7 |
| C+ | 77–79 | 2.3 |
| C | 73–76 | 2.0 |
| C- | 70–72 | 1.7 |
| D+ | 67–69 | 1.3 |
| D | 65–66 or 60–66 | 1.0 |
| D- | if used | 0.7 |
| F | below passing | 0.0 |
Why plus and minus matter on an unweighted scale
If your school reports plus and minus grades on your transcript, they carry distinct decimal values that alter your final average. An A- drops your points to 3.7, pulling a 4.0 average down. A B+ raises your points to 3.3, lifting a 3.0 average up.
Some schools use a “flat” letter system (only A, B, C, D, F). If your school does not print plus or minus symbols on the official transcript, do not use the decimals from the chart. You must calculate using flat 4.0, 3.0, and 2.0 values, even if you know you had an 89% in the class.
If you have letters and want to skip doing the chart lookup manually, you can use our letter-to-GPA guide to reference the numbers while you work.
Method 1 — Equal-credit classes
Use this method for most high school semesters. If every class you take is worth the same amount of credit (for example, every class is 1 credit, or every semester class is 0.5 credits), you can simply average the point values together.
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Convert letters to unweighted points
Match your transcript letters to the 4.0 conversion chart. Remember, AP, IB, and Honors labels do not change the unweighted point value.
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Add the points together
Sum up all the numerical values for the term to find your total grade points.
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Count your courses
Count the number of graded academic classes you took. Exclude classes graded as Pass/Fail.
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Divide the sum by the courses
Divide your total grade points by the number of classes. The result is your unweighted GPA.
| Course Name | Letter Grade | Unweighted Points |
|---|---|---|
| English | B+ | 3.3 |
| Honors Algebra | A- | 3.7 |
| History | B | 3.0 |
| AP Biology | C+ | 2.3 |
| Art | A | 4.0 |
| Sum of 5 classes | 16.3 points | |
In Example A, the student earned 16.3 points across 5 classes. Dividing 16.3 by 5 results in a 3.26 unweighted GPA. Notice that Biology is AP on the transcript, but unweighted still uses 2.3, not 3.3.
Want to check your high school math instantly?
Use the high school GPA calculator →Method 2 — Credit hours (Quality Points)
Use this method for college or a high school that assigns varying credits to classes. When a chemistry class is worth 4 credits and a gym class is worth 1 credit, they cannot be averaged equally. You must calculate quality points.
Unweighted GPA = (sum of quality points) ÷ (sum of credit hours)
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Find your grade points
Convert your letters using the 4.0 chart exactly as you did in Method 1.
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Multiply by credit hours
Multiply each class’s grade point value by its specific credit hours. The result is called “quality points.”
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Sum both columns
Add up all your quality points to get a grand total. Then, add up all your credit hours to get a total credit sum.
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Divide quality points by credits
Divide total quality points by total credit hours. This weighted average is your correct GPA.
| Course | Credits | Grade (Points) | Quality Points (Cr × Pts) |
|---|---|---|---|
| Chemistry | 4 | A (4.0) | 16.0 |
| Calculus | 4 | B+ (3.3) | 13.2 |
| English | 3 | A- (3.7) | 11.1 |
| History | 3 | B (3.0) | 9.0 |
| Totals | 14 credits | 49.3 QP |
In Example B, the student earned 49.3 quality points divided by 14 total credit hours. The result is 49.3 ÷ 14 = 3.5214, which rounds to a 3.52 GPA. Because the 4-credit A pulls more weight than the 3-credit B, the GPA leans higher than a simple average.
Taking classes with different credit weights?
Use the college GPA calculator →Cumulative unweighted GPA after a new semester
Your cumulative GPA is your total high school or college average. You cannot calculate it by adding your new semester GPA to your old GPA and dividing by two. You must blend the new quality points into your historical total.
Let us look at Example C. Assume your old unweighted GPA was a 3.20 over 16 prior credits. Your new semester is exactly the same as Example A (5 equal one-credit classes, where you earned 16.3 quality points on 5 credits).
- Old points: 3.20 × 16 = 51.2
- New points: 16.3
- Total points: 51.2 + 16.3 = 67.5
- Total credits: 16 + 5 = 21
Divide 67.5 by 21 credits to get 3.21. Those five new classes barely move a 16-credit record. That is how cumulative math works: the more credits you have, the harder it is to pull the average up (or drag it down).
Unweighted vs weighted: same grades, two numbers
The unweighted formula caps at 4.0 and ignores course difficulty. The weighted formula awards bonus points—usually an extra 0.5 for Honors and 1.0 for AP or IB classes—rewarding students who take harder academic schedules.
Let us compare the report card from Example A under both systems. Biology is an AP class (normally a C+ is 2.3, but weighted it becomes a 3.3). Algebra is an Honors class (normally an A- is 3.7, but weighted it becomes a 4.2).
Unweighted
Caps at 4.0English B+ = 3.3
Honors Algebra A- = 3.7
History B = 3.0
AP Biology C+ = 2.3
Art A = 4.0
(16.3 points ÷ 5 classes)
Weighted
Rigor bonusEnglish B+ = 3.3
Honors Algebra A- = 4.2 (+0.5)
History B = 3.0
AP Biology C+ = 3.3 (+1.0)
Art A = 4.0
(17.8 points ÷ 5 classes)
The student earned a 3.26 unweighted and a 3.56 weighted from the exact same report card. If you are wondering if your specific 3.26 is a strong score for your college goals, you can read our guide on what is a good GPA to see how colleges interpret both numbers.
Estimating unweighted GPA from a weighted number
You cannot perfectly calculate an unweighted GPA from a weighted one without seeing the transcript. However, if you know the exact number of AP and Honors classes taken, you can subtract the bonus points mathematically to get a close estimate.
For example, if you have a 4.12 weighted GPA across 20 total classes, and you took 4 APs and 2 Honors classes:
- Calculate total bonus points: (0.5 × 2) + (1.0 × 4) = 1.0 + 4.0 = 5.0 bonus points.
- Divide bonus by total courses: 5.0 ÷ 20 = 0.25 point inflation.
- Subtract from weighted: 4.12 − 0.25 = 3.87 estimated unweighted GPA.
High school vs college unweighted GPA
In college, the standard GPA is already an unweighted 4.0 system. Colleges do not weight classes based on difficulty (a 400-level senior seminar is graded on the same 4.0 scale as a 100-level freshman intro).
The primary difference in the math is that high schools often use equal-credit classes (Method 1), whereas college strictly uses credit hours (Method 2). A middle school student calculating a simple average is using the exact same unweighted 4.0 scale principles as a university student.
Special cases: P/F, I, W, repeated courses
Unweighted GPA math is strict about which classes count. Just because a course appears on your transcript does not mean it enters the formula.
- Pass/Fail (P/F): A “Pass” earns credits but has no point value, so it is omitted from the unweighted GPA calculation. A “Fail” is usually recorded as an F and counts as 0.0 points, dragging your average down.
- Incomplete (I): Ignored entirely until the final letter grade is resolved.
- Withdrawal (W): Has no impact on GPA. It sits on the transcript but contributes zero points and zero attempted credits.
- Repeated courses: If your school has a grade replacement policy, you delete the old grade points and replace them with the new ones. If they average them, you include both attempts as separate courses in the math.
- Dual enrollment: College classes taken in high school are still unweighted. An A in a dual enrollment course is a 4.0, despite being college-level rigor.
Common mistakes
When computing unweighted numbers by hand, these are the easiest places to slip up.
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Including the AP bonus. If you write down a 4.5 for an AP class, you are calculating a weighted GPA. Unweighted points stop at 4.0.
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Averaging GPAs together. You cannot add your freshman 3.0 and your sophomore 4.0 and divide by two if the credit counts differ. Always use quality points.
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Ignoring credit hours. Treating a half-semester 0.5-credit class as equal weight to a full-year 1.0-credit class will warp the math.
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Including non-academic classes. Many colleges recalculate your high school GPA using only core academic subjects (English, Math, Science, History, Language). They often remove PE, Health, and shop classes from the unweighted math entirely.
When to stop doing it by hand
Hand-calculating a single semester is a great way to double-check your report card. But if you are trying to calculate a four-year transcript, factoring in different credit hours, old semesters, and plus/minus rules, doing the arithmetic manually introduces errors.
Once you understand how the 4.0 cap and the equal-credit division work, let a computer do the heavy lifting. You can use our general GPA calculator to punch in your letters and credits, and it will run the unweighted math instantly.
Frequently asked questions
How do you calculate unweighted GPA?
To calculate unweighted GPA, convert every letter grade on your transcript to a number between 0.0 and 4.0 using a standard conversion chart. Do not add any extra points for Honors, AP, or IB classes. Add these points together and divide by the total number of classes to find your average.
What is the unweighted GPA formula?
For classes worth equal credits, the unweighted GPA formula is the sum of your grade points divided by the number of courses. If your classes have different credit hours, the formula is the sum of your quality points (grade points multiplied by credits) divided by the total credit hours.
Is an A in AP still 4.0 unweighted?
Yes. On an unweighted scale, an A in an AP class is worth exactly 4.0 points. The unweighted system ignores the difficulty of the course and only measures the raw letter grade.
Does unweighted GPA go above 4.0?
In almost all high schools and colleges, unweighted GPA does not exceed 4.0. Both an A and an A+ are usually capped at 4.0. A small minority of colleges award a 4.3 for an A+, but 4.0 is the standard maximum.
Do plus and minus grades change unweighted GPA?
Yes, if your school uses a plus and minus grading system. An A- drops your points to 3.7, and a B+ raises them to 3.3. If your school only issues flat letters (A, B, C), then plus and minus grades do not apply to your calculation.
How is unweighted GPA different from weighted GPA?
Unweighted GPA treats all classes equally on a 4.0 scale. Weighted GPA adds bonus points (usually 0.5 or 1.0) for advanced classes like Honors or AP, allowing the average to exceed 4.0. Colleges look at unweighted GPA to see your baseline academic performance.
Do credit hours matter for high school unweighted GPA?
Usually not. Most high school schedules use equal-credit courses (like 1 credit per year or 0.5 per semester). If your high school does use varying credits, you must multiply your grade points by the credit hours before calculating the average.
How do I calculate college unweighted GPA from letter grades?
Because college classes have different credit hours, you must use the credit-hour method. Multiply each class’s grade point value by its credit hours to find quality points. Then divide the total quality points by the total credit hours.
Can I convert a weighted GPA to unweighted?
You can estimate it, but you cannot convert it perfectly without seeing the original letter grades. To estimate, subtract the total bonus points your school awarded for advanced classes and average that deduction across all the classes you have taken.
Do Pass/Fail classes count in unweighted GPA?
Generally, a passing grade (P) does not affect your unweighted GPA because it carries no numerical value. However, a failing grade (F) in a Pass/Fail class usually counts as a 0.0 and will lower your GPA.
What is a 3.0 unweighted GPA in letters?
A 3.0 unweighted GPA translates to a straight B average. It means that across all your courses, your grades average out to exactly a B on the standard 4.0 scale.
How do I calculate cumulative unweighted GPA?
To find your cumulative GPA, you cannot just average your semester GPAs together. You must add up all the quality points you have earned across every semester and divide that number by the total number of credits you have attempted since you started.
Which GPA do colleges look at, weighted or unweighted?
Colleges look at both, but many rely heavily on the unweighted GPA. Because weighted scales vary wildly between high schools, college admissions officers use unweighted GPA to compare students fairly on a standard baseline, while evaluating course rigor separately.