Calculate your weighted GPA including AP, IB, and honors courses. See both weighted (5.0 scale) and unweighted (4.0 scale) GPA side by side.
A weighted GPA rewards students who take more rigorous courses by adding extra grade points. The standard additions are: AP (Advanced Placement) and IB (International Baccalaureate) courses add 1.0 point, and Honors courses add 0.5 points. An A in an AP class is worth 5.0 instead of 4.0. An A in an Honors class is worth 4.5.
The result is a GPA that can exceed the standard 4.0 scale. Students taking a full AP course load can have weighted GPAs of 4.5 or higher. Weighted GPA does not just reward performance — it signals the difficulty of the courses you chose to take.
| Course Type | Grade | Unweighted Points | Weighted Points |
|---|---|---|---|
| AP / IB | A | 4.0 | 5.0 |
| AP / IB | B | 3.0 | 4.0 |
| Honors | A | 4.0 | 4.5 |
| Honors | B | 3.0 | 3.5 |
| Regular | A | 4.0 | 4.0 |
Most colleges consider both weighted and unweighted GPA, but they use them differently. Weighted GPA signals course rigor — it tells admissions officers that a student challenged themselves with harder classes. Unweighted GPA provides a standardized baseline that is easier to compare across different schools and curricula.
Many colleges recalculate GPA on their own scale using your transcript directly, which means the number on your school's report card is not always the one admissions uses. The courses you take and the grades you earn matter more than which specific number your school calculates.
A B in an AP course earns 4.0 weighted points — the same as an A in a regular course. So a B in AP does not hurt your weighted GPA compared to an A in a regular class. But your unweighted GPA takes a hit since the B still records as 3.0 unweighted. The practical advice: if you can earn a B or better in an AP course, it is generally worth taking for the weighted boost and the course rigor signal it sends to colleges.
The risk comes when students overload on AP courses and their grades drop significantly — a C in AP (3.0 weighted) is worse than an A in a regular course (4.0 unweighted). Course selection should match your realistic capacity, not your aspirational workload.
AP courses are college-level courses taught in high school with an optional standardized exam at the end. Scoring 3, 4, or 5 on the AP exam can earn college credit at many schools, reducing the courses you need in college. IB courses are part of a structured international curriculum with similar college-credit potential.
Not all schools weight AP and IB identically. Some schools add 1.0 for AP/IB and 0.5 for Honors; others use different increments. Check your school's specific policy if the exact number matters for an award or eligibility calculation.
International Baccalaureate (IB) courses use a 1–7 grading scale rather than letter grades. For weighted GPA purposes, IB courses receive the same +1.0 bonus as AP courses — a 7 in an IB course equals an A with the AP/IB weight applied (5.0 weighted, 4.0 unweighted). A 6 maps to an A−, a 5 to a B+, and so on.
IB Higher Level (HL) and Standard Level (SL) courses are typically weighted identically by US high schools, though some give HL an additional 0.5 bump. Check your school's specific policy if this distinction matters. For a calculator built specifically around IB's 1–7 scale, use our IB GPA Calculator.
The +1.0 bonus looks large, but its impact on your overall weighted GPA depends on how many total courses you're taking and what grades you earn in them.
| Scenario (6 total courses, all A's) | Weighted GPA | Unweighted GPA |
|---|---|---|
| 0 AP/IB courses | 4.00 | 4.00 |
| 1 AP/IB course | 4.17 | 4.00 |
| 2 AP/IB courses | 4.33 | 4.00 |
| 4 AP/IB courses | 4.67 | 4.00 |
| 6 AP/IB courses (all) | 5.00 | 4.00 |
Note that these scenarios assume all A's. A B in an AP course (4.0 weighted) equals an A in a regular course (4.0 unweighted) — the +1.0 bonus offsets one letter grade drop. This table illustrates why the total number of AP courses, not just one or two, is what meaningfully separates weighted GPAs.
Not every high school offers the same number of AP or IB courses. A student at a school offering 3 AP courses faces a different ceiling than one at a school offering 20. Admissions officers are aware of this — they evaluate your GPA in the context of what was available at your specific school. Taking every AP course your school offers carries more weight than taking 2 of 20 available.
If your school offers few advanced options, look into dual enrollment at a local community college, which can provide college-level coursework that impacts both weighted GPA and gives you transferable college credits.
Yes — many do. Colleges receive your transcript and recalculate GPA using their own methodology. Some use only core academic subjects and exclude electives, gym, or arts courses. Some apply their own weighting scale regardless of what your school uses. Some calculate an unweighted GPA and use the weighted GPA only as context.
This means the weighted GPA on your transcript is not always the number admissions uses. Focus on earning strong grades in the most challenging courses available to you, rather than optimizing a specific GPA number.
Not necessarily. Admissions officers know that a 4.2 weighted GPA from a school offering many AP courses is not directly comparable to a 4.2 from a school with few. They evaluate GPA in context. Taking a rigorous course and earning a B is often viewed more favorably than taking an easy course and earning an A — so do not overload on AP classes if it means your grades will suffer significantly.
GPA Calculator — calculate your unweighted cumulative GPA.
AP GPA Calculator — model exactly how each AP course moves your weighted GPA.
IB GPA Calculator — convert IB 1–7 scores to US GPA.
GPA Raise Calculator — how many A's do you need to reach your GPA goal?
Weighted GPA Guide for AP Classes — the full breakdown.
What GPA Do You Need for Med School? — weighted vs unweighted in admissions.