Two numbers, one transcript
If your report card shows two GPAs, you're looking at an unweighted and a weighted version of the same grades. The unweighted GPA treats every class the same on the 4.0 scale. The weighted GPA gives extra credit for harder classes, so students who take challenging courses aren't penalised for the risk. Neither is "the real one"; they just answer slightly different questions.
How unweighted GPA is calculated
Each letter grade becomes grade points: A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, B- = 2.7, C+ = 2.3, C = 2.0, C- = 1.7, D+ = 1.3, D = 1.0, D- = 0.7 and F = 0. This is the most common scale, though some schools use slightly different plus/minus values or give an A+ 4.3. Multiply each course's points by its credits, add the results, and divide by total credits.
Example: an A in a 1-credit class (4.0), a B+ in a 1-credit class (3.3) and a B in a 0.5-credit class (3.0 × 0.5 = 1.5) gives (4.0 + 3.3 + 1.5) ÷ 2.5 = 3.52 unweighted. The maximum possible is 4.0 (or 4.3 at schools that count A+ higher).
How weighted GPA is calculated
The weighted version starts from the same points, then adds a bonus for course level. A widely used scheme adds 0.5 for honors classes and 1.0 for AP, IB Higher Level and dual-enrollment college courses, so an A in an AP class counts as 5.0 and a B in honors as 3.5. Some schools give the bonus only for passing grades, some cap the number of weighted courses, and a few use different bonuses entirely. Your school's course catalog or student handbook will spell out its rules.
Using the earlier example, if the A was in an AP class and the B+ in an honors class: (5.0 + 3.8 + 1.5) ÷ 2.5 = 4.12 weighted. Same grades, very different number, which is why it's important to know which one you're looking at. Our GPA calculator shows both side by side: choose Regular, Honors or AP/IB/Dual for each course.
Which one do colleges use?
It varies. Many colleges see both on your transcript, but plenty of admissions offices recalculate GPA using their own formula so applicants from different high schools can be compared fairly. Some strip out weighting and look at core academic courses only; others apply their own bonus for advanced classes. The University of California, for example, publishes its own method for calculating the GPA it uses in admissions, with extra points for a limited number of approved honors-level courses.
Because of this, the most important thing is the rigor shown on your transcript, not which GPA is bigger. Admissions readers can see that you took AP Chemistry rather than regular Chemistry regardless of how your school weights it.
Which is better to report?
If an application asks for your GPA, report what your school reports and specify whether it is weighted or unweighted, along with the scale (for example "4.12 weighted on a 5.0 scale"). Don't convert it yourself unless the form asks you to. Scholarship forms often state the scale they want; follow those instructions exactly.
Should I take harder classes for the weighting?
Take the hardest courses you can do well in. A weighted bonus only helps if the grade holds up: an A in an honors course is worth 4.5 weighted, but a C in an AP course is worth 3.0 weighted and 2.0 unweighted, which can pull the unweighted figure down noticeably. Think about your workload across all classes, not just one.
If you're weighing up a schedule, try the options in the calculator with realistic grades for each to see how each choice affects both numbers. And read what is a good GPA for benchmarks to compare against.
Questions to ask your school
Before relying on either number, ask your counselor or check the handbook for answers to a few practical questions. Which courses receive extra weight, and how much? Is the bonus applied to every grade or only to passing grades? Is there a cap on the number of weighted courses counted? Does the school report class rank, and is that based on weighted or unweighted GPA? Are dual-enrollment college courses weighted the same as AP or IB? The answers explain why your GPA may differ from a friend's at another school with similar grades.
It's also worth checking that your transcript lists course levels clearly, since that is what lets colleges see the rigor of your schedule whatever weighting your school uses.
Key takeaways
Unweighted GPA tops out at 4.0 and treats every class equally. Weighted GPA rewards difficult courses and can exceed 4.0. Schools differ in how they weight, colleges often recalculate, and the transcript itself matters at least as much as either number. Our results are unofficial estimates based on common scales; your school's official figures always take precedence.
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Last reviewed 11 October 2026. Unofficial guidance; check official sources for decisions.
FAQ
Is a 4.0 weighted GPA good?
It depends on your course mix. A 4.0 weighted could mean straight A's in regular classes or a mix of A's and B's in advanced classes. Check your unweighted GPA as well.
Do colleges prefer weighted or unweighted GPA?
Many recalculate their own GPA. Rigor visible on the transcript matters more than which version is reported.
How much does an AP class add to GPA?
Commonly +1.0 on a weighted scale, so an A counts as 5.0, but your school's rules decide.