An unweighted GPA counts every class on the same 4.0 scale. A weighted GPA adds extra points for harder classes, such as honors and AP. The same student below has an unweighted GPA of 3.52 and a weighted GPA of 4.00. Colleges recalculate GPAs in their own way, so use the one your school reports and make sure your transcript shows the difficulty of your classes.
- Unweighted: A is 4.0 in every class. Weighted: honors and AP classes earn extra points, so a 4.0 can be exceeded.
- One student in this guide: 3.52 unweighted, 4.00 weighted.
- The Common App says to report the weighted GPA if your school calculates both.
- The University of California recalculates GPA from grades 10 and 11 and caps the extra points.
- Weighting rules vary by school, so compare the method before you compare the number.
The difference in one table
| Class type | Unweighted A | Weighted A (common scheme) |
|---|---|---|
| Regular | 4.0 | 4.0 |
| Honors | 4.0 | 4.5 |
| AP | 4.0 | 5.0 |
This scheme comes from a published example: Charlotte-Mecklenburg Schools adds 0.5 for honors and 1.0 for AP. Your school may use different amounts. Look up its grading policy.
A worked example
Take a student with 15 classes over four years. 9 of them are honors or AP, and every grade is an A or a B. On the unweighted scale (A = 4, B = 3), their GPA is 3.52. Adding 0.5 for honors and 1.0 for AP raises it to 4.00. The harder classes lift the number by 0.48.
| Level | Classes | Unweighted | Weighted |
|---|---|---|---|
| Regular | 6 | 3.27 | 3.27 |
| Honors | 4 | 3.75 | 4.25 |
| AP | 5 | 3.60 | 4.60 |
Look at the honors and AP rows. Their unweighted averages are 3.75 and 3.60, while the regular classes sit at 3.27. The extra points on those nine classes account for the whole gap between the two GPAs.
Which one to report on the Common App
The Common App help center says to report the weighted value if your school calculates both weighted and unweighted GPA. If your school does not calculate a cumulative numerical GPA, or uses a scale that is not in the drop-down menu, leave the field blank. The field is not required.
So the reporting rule follows your school. You report what your school calculates, and you do not work out your own.
What colleges do with your GPA
Many colleges recalculate a GPA, so the number on your transcript may not be the one they use. The University of California is a published example. It counts only A-G classes from the summer after 9th grade through the summer after 11th grade. Grades are A = 4, B = 3, C = 2, D = 1. Plus and minus grades do not count.
Honors-level classes earn one extra point for each semester, for grades of A, B or C. There is a cap of 8 extra points across 10th and 11th grade, and no more than 4 from 10th grade. For a California resident, the same student above would have a base GPA of 3.50 (it differs from the unweighted GPA above because UC counts only grades 10 and 11), a capped weighted GPA of 4.00 and an uncapped figure of 4.25.
A nonresident gets honors weight only for AP and IB classes, which changes the result. This student comes out at 3.88 on the same method.
The UC Quick Reference Guide adds that campuses may look at GPA variations, including a fully weighted GPA.
How the two numbers move over four years
The unweighted GPA of this student barely changes from year to year, because the grades stay at A and B. The weighted GPA climbs as the student takes more AP classes.
| Year | Unweighted this year | Weighted this year | Cumulative unweighted | Cumulative weighted |
|---|---|---|---|---|
| 9th grade | 3.50 | 3.63 | 3.50 | 3.63 |
| 10th grade | 3.50 | 4.00 | 3.50 | 3.81 |
| 11th grade | 3.50 | 4.13 | 3.50 | 3.92 |
| 12th grade | 3.60 | 4.40 | 3.52 | 4.00 |
A student who reads only the unweighted column sees a steady 3.50 and no sign of the harder classes. A student who reads only the weighted column sees 4.40 in 12th grade and may think the grades improved. Neither reading is wrong, and each hides something. The transcript shows the level of every class, so an admissions reader can see both.
Why schools weight GPA at all
Without weighting, in a plain 4.0 system, a B in AP Calculus and an A in a regular elective pull the average in opposite directions, even though many students would call the first harder. Weighting is meant to stop students from avoiding hard classes to protect their GPA. The cost is that a number above 4.0 means different things at different schools, so always ask how it was built.
How to check your own school
- Find your school’s grading policy, often in the student handbook or on the counseling page.
- Note the extra points for each level: honors, AP, IB and dual enrollment.
- Check whether the GPA is cumulative from 9th grade, and which classes it counts.
- Ask your counselor which GPA goes on your transcript and which one goes in the school report.
- Enter your classes in the calculator and compare its result with your transcript.
Which GPA matters more
- For your own planning: look at both. The unweighted number tells you how you do in each class. The weighted one tells you how your school rewards difficulty.
- For an application: report what your school reports. Let your transcript show the level of each class.
- For a scholarship: read the rule. Some use weighted, some unweighted, and some name a scale.
- For a comparison with a friend: check that you both use the same scheme first.
Mistakes to avoid
- Mixing schemes. A 4.5 at a school that adds 0.5 for honors is not the same as a 4.5 at one that adds 1.0.
- Reporting your own recalculation. Use your school’s number unless an application asks for another.
- Ignoring the UC cap. The UC counts at most 8 extra points, so weight beyond that adds nothing to the UC GPA.
- Treating the number as the whole file. Admissions teams also see your classes and grades on the transcript.
Calculators that help
- High School GPA Calculator: weighted, unweighted and UC GPA from your classes.
- Weighted GPA Calculator: a weighted GPA with your own point scale.
- GPA Calculator: a plain GPA from your grades and credits.
Questions students ask
Do colleges prefer weighted or unweighted GPA?
It varies. Many recalculate a GPA with their own method. The Common App tells you to report the weighted GPA if your school calculates both.
Can a weighted GPA be higher than 4.0?
Yes. Extra points for honors, AP and similar classes can take it above 4.0, for example 4.5 for an A in honors in the Charlotte-Mecklenburg scheme.
What GPA does the University of California use?
It recalculates from A-G classes in grades 10 and 11. Plus and minus grades do not count, and honors-level classes earn extra points up to a cap of 8 in total and 4 from 10th grade.
What if my school does not weigh GPA?
Report what your school calculates. If your school does not calculate a cumulative numerical GPA, you can leave the field blank on the Common App.
Is a 4.0 unweighted better than a 4.5 weighted?
They are different measures. The unweighted GPA ignores class difficulty, and the weighted one rewards it. Compare the same type, and compare the schemes before the numbers.
