How to Use the Weighted GPA Calculator
This calculator is focused on determining the exact impact of course difficulty on your average. Enter your courses, select their rigor level, and ensure the Weighting rule matches your school.
Weighted GPA policies vary by institution, so use the weighting policy that applies to your school or program.
1. Select the grade
Choose the official letter grade recorded for the course.
2. Pick course type
Mark the course as Regular, Honors, or AP/IB to apply the correct bonus.
3. Set weighting rule
Use the gear icon settings to select the specific bonus structure your school uses.
Note on Pass/Fail Grades
This specific calculator excludes P, NP, and W grades from the dropdown. Since those statuses cannot carry a rigor bonus, they dilute the focus of a weighting calculation. If you need to enter them, use the High School GPA Calculator instead.
Weighted GPA on a 4.0 Scale
A 4.0 grading scale describes the base quality-point values assigned to letter grades. A weighted GPA can still use those base values while adding bonus points for eligible advanced courses according to a school's weighting policy.
How Do I Go From an Unweighted GPA to a Weighted GPA?
You cannot reliably convert an unweighted GPA to a weighted GPA by multiplying it by a fixed number. The weighted result depends on which courses receive bonus points, how many credits those courses carry, and the weighting policy used by the school.
Entering the individual courses and their levels is more reliable than applying a simple conversion factor.
How a "5.0 Scale" Actually Works
A frequent misunderstanding is treating a "5.0 scale" as something you convert to by stretching your 4.0 result upward. It is not.
A weighted scale is defined by the bonus quality points your school grants for harder courses, not by a multiplier applied at the end.
A student with straight A's in only regular classes has a weighted GPA of exactly 4.0, not 5.0. The 5.0 is a ceiling that becomes reachable only when every course on the schedule carries the maximum bonus.
How Weighted GPA Is Calculated
Base Points
Your letter grade becomes base quality points (e.g., A = 4.0).
Add Bonus
The course rigor bonus (e.g., +1.0 for AP) is added to the base points.
Weight & Average
The combined points are multiplied by the credits, summed, and divided by total credits.
Weighted GPA Example
| Course | Type | Grade | Base Pts | Bonus | Total Pts |
|---|---|---|---|---|---|
| Algebra II | Regular | B+ | 3.3 | +0.0 | 3.3 |
| English 10 | Honors | A- | 3.7 | +0.5 | 4.2 |
| U.S. History | AP | B | 3.0 | +1.0 | 4.0 |
This table assumes 1 credit per course and standard +0.5 Honors / +1.0 AP weighting.
How Much One AP Class Moves Your GPA
The rigor bonus is applied per course and then credit-averaged with everything else. This means a +1.0 bonus does not raise your final GPA by 1.0 point.
Example of One AP Bonus
If one 1-credit AP course receives a +1.0 bonus and is one of five equally weighted courses, that bonus contributes +0.20 to the weighted average, all else being equal.
Senior Year Reality
For a cumulative GPA, the effect of one additional advanced course becomes smaller as more previously completed credits are included. Use the Cumulative GPA Calculator when combining multiple academic terms.
The Course Impact column in the calculator shows exactly how far your average would drop if you removed that specific course, making it easy to see which rigorous classes are carrying your GPA.
Getting the Right Numbers From Your Transcript
Check course designations
Only apply a bonus if the transcript officially lists the class as Honors, AP, or IB. A class that just felt hard doesn't get a bonus.
Verify the weighting policy
Not all schools use +0.5/+1.0. Some use +0.25/+0.5, some use +1.0/+2.0, and some cap the total number of weighted credits allowed per year. Check your student handbook.
Check failing grades
Many schools do not award the rigor bonus if you fail the course. An 'F' in an AP class often results in 0 quality points, not 1.0.