Your weighted GPA starts with your regular (unweighted) GPA and adds extra points for harder classes like Honors, AP, or IB courses. Most high schools print your weighted GPA on your transcript, but if you want to calculate it yourself or verify the number, you can do it with a simple formula and about ten minutes of work.
How Weighted GPA Differs From Unweighted
An unweighted GPA uses a standard 4.0 scale where an A equals 4.0, a B equals 3.0, and so on, regardless of course difficulty. A weighted GPA bumps up the grade points for advanced courses to reward students who take on tougher workloads. Honors classes typically add 0.5 points to each grade, and AP or IB classes add a full 1.0 point. That means an A in a regular class is worth 4.0, an A in an Honors class is worth 4.5, and an A in an AP or IB class is worth 5.0.
Here’s how the scale looks across all grade levels:
- A (93–100): Regular 4.0 / Honors 4.5 / AP or IB 5.0
- A- (90–92): Regular 3.7 / Honors 4.2 / AP or IB 4.7
- B+ (87–89): Regular 3.3 / Honors 3.8 / AP or IB 4.3
- B (83–86): Regular 3.0 / Honors 3.5 / AP or IB 4.0
- B- (80–82): Regular 2.7 / Honors 3.2 / AP or IB 3.7
- C+ (77–79): Regular 2.3 / Honors 2.8 / AP or IB 3.3
- C (73–76): Regular 2.0 / Honors 2.5 / AP or IB 3.0
- C- (70–72): Regular 1.7 / Honors 2.2 / AP or IB 2.7
- D (65–66): Regular 1.0 / Honors 1.5 / AP or IB 2.0
- F (below 65): 0.0 across all levels
One important detail: a failing grade gets no weight boost, even in an AP or IB class.
Step-by-Step Calculation
Grab your transcript or report card. You need three pieces of information for each class: the letter grade you earned, the number of credits (or credit hours) the class is worth, and whether it was a regular, Honors, or AP/IB course. Then follow these steps.
Step 1: Convert each grade to its weighted point value. Use the scale above. If you got a B+ in AP Chemistry, that’s 4.3. If you got an A in regular English, that’s 4.0. If you got an A- in Honors History, that’s 4.2.
Step 2: Multiply each weighted grade point by the credit hours for that class. Most high school classes are worth the same number of credits (often 1.0 per semester or 0.5 per semester, depending on your school). If AP Chemistry is 1 credit and you earned a 4.3, your quality points for that class are 4.3. If Honors History is 1 credit with a 4.2, that’s 4.2 quality points.
Step 3: Add up all the quality points. This is your total grade points earned.
Step 4: Add up all the credit hours. This is your total credits attempted.
Step 5: Divide total grade points by total credit hours. The result is your weighted GPA.
A Quick Example
Say you took five classes this semester, each worth 1 credit:
- AP Biology: A (5.0) × 1 credit = 5.0
- Honors English: B+ (3.8) × 1 credit = 3.8
- Regular Algebra II: A- (3.7) × 1 credit = 3.7
- AP U.S. History: B (4.0) × 1 credit = 4.0
- Regular Art: A (4.0) × 1 credit = 4.0
Total grade points: 5.0 + 3.8 + 3.7 + 4.0 + 4.0 = 20.5. Total credits: 5. Weighted GPA: 20.5 ÷ 5 = 4.1. Notice this exceeds 4.0, which is only possible on a weighted scale. Your unweighted GPA for the same grades would be 3.72.
Where to Find Your Official Number
The fastest way to check your weighted GPA is on your official high school transcript. Most schools list both weighted and unweighted GPAs. You can usually request a copy from your guidance counselor or through your school’s online student portal. If your school uses a platform like PowerSchool, Infinite Campus, or Schoology, your weighted GPA may already appear on your dashboard.
Keep in mind that not every high school uses the same weighting system. Some schools add 0.5 for AP classes instead of 1.0. Others weight dual enrollment courses the same as AP. Your school’s specific policy is what determines your official weighted GPA, so if your manual calculation doesn’t match, the weighting scale is the first thing to double-check with your counselor.
How Colleges Handle Your Weighted GPA
Colleges don’t all treat your weighted GPA the same way. Some accept the number your high school reports. Others strip away all weighting and recalculate an unweighted GPA using only your core academic classes: English, math, science, history, social studies, and foreign language. In that recalculation, electives like gym or study hall typically get dropped. Some schools will still include elective-level courses if they were taken at the college level, such as AP Studio Art or IB Music.
Bucknell University, for example, has described its process as using a straight unweighted GPA recalculation with no extra weight for AP, IB, or honors courses. Other colleges do the opposite and add their own weighting. The point is that admissions offices look beyond the raw number. They review your school’s profile to understand what courses were available to you, and then evaluate whether you challenged yourself with the options you had.
This means your weighted GPA matters, but course rigor matters just as much. A 4.3 weighted GPA built on several AP and Honors classes tells a different story than a 4.3 from a school that inflates its weighting scale. Admissions officers look at both the number and the context behind it.
Cumulative vs. Semester Weighted GPA
The calculation above works for a single semester. Your cumulative weighted GPA uses the same formula but includes every graded class across all semesters. To calculate it, list every course you’ve completed since freshman year, apply the weighted grade points, multiply by credits, total everything up, and divide. If you’ve completed 40 credits over three years, you’re dividing your total quality points by 40.
Your cumulative GPA is the number colleges see on your transcript. It smooths out one bad semester, but it also means a rough freshman year takes time to recover from. If you earned a 3.5 weighted GPA over 10 credits freshman year and a 4.5 over 10 credits sophomore year, your cumulative sits at 4.0, not 4.5. Every semester’s grades carry equal weight per credit in the final average.