What is GPA?
GPA stands for Grade Point Average — a single number that represents your average academic performance across all courses. In the US, most high schools report GPA on a 0.0 to 4.0 scale (sometimes up to 5.0 for weighted GPAs).
Your GPA matters for college admissions, scholarships, academic honors (Honor Roll, National Honor Society), and athletic eligibility. Colleges see both your GPA and your transcript — so a high GPA in challenging courses is more impressive than the same GPA in easier ones.
Letter grades to grade points
The standard conversion from letter grades to grade points on a 4.0 scale:
| Letter grade | Percentage range | Grade points (unweighted) |
|---|---|---|
| A+ | 97–100% | 4.0 |
| A | 93–96% | 4.0 |
| A− | 90–92% | 3.7 |
| B+ | 87–89% | 3.3 |
| B | 83–86% | 3.0 |
| B− | 80–82% | 2.7 |
| C+ | 77–79% | 2.3 |
| C | 73–76% | 2.0 |
| C− | 70–72% | 1.7 |
| D+ | 67–69% | 1.3 |
| D | 63–66% | 1.0 |
| F | Below 60% | 0.0 |
Note: Not all schools use the +/− system. Many use a simpler A=4.0, B=3.0, C=2.0, D=1.0, F=0.0 scale. Check your school's grading policy if you're unsure.
Unweighted GPA — step by step
An unweighted GPA treats all courses equally — a B in AP Chemistry counts the same as a B in regular English. Here's how to calculate it:
Step 1: Convert each letter grade to its grade-point value using the table above.
Step 2: Multiply each grade point by the number of credit hours for that course. Most courses are 1 credit; some labs or electives may be 0.5.
Step 3: Add up all the grade points (grade × credits). This is your total quality points.
Step 4: Divide by the total number of credit hours attempted.
Formula:
GPA = Sum of (Grade Points × Credits) ÷ Total Credits
Example:
| Course | Grade | Credits | Quality Points |
|---|---|---|---|
| English | A (4.0) | 1.0 | 4.0 |
| Algebra II | B+ (3.3) | 1.0 | 3.3 |
| US History | A− (3.7) | 1.0 | 3.7 |
| Biology | B (3.0) | 1.0 | 3.0 |
| Spanish II | A (4.0) | 1.0 | 4.0 |
| Total | 5.0 | 18.0 |
GPA = 18.0 ÷ 5.0 = 3.60
Enter your grades and credits — get your GPA instantly
GPA Calculator →Weighted GPA (Honors & AP)
A weighted GPA rewards you for taking more challenging courses. The two most common systems:
| Course level | Bonus added to grade points |
|---|---|
| Regular / Standard | +0.0 (no bonus) |
| Honors / Pre-AP / IB SL | +0.5 |
| AP / IB HL / Dual Enrollment | +1.0 |
With this system, a B (3.0) in an AP class becomes 4.0 on a weighted scale, and an A (4.0) in AP becomes 5.0 — which is why weighted GPAs can exceed 4.0.
Weighted GPA example — same student, but with AP and Honors courses:
| Course | Level | Grade | Base GPA pts | Bonus | Weighted pts | Credits |
|---|---|---|---|---|---|---|
| AP English Lang | AP | A (4.0) | 4.0 | +1.0 | 5.0 | 1.0 |
| AP Calculus AB | AP | B+ (3.3) | 3.3 | +1.0 | 4.3 | 1.0 |
| Honors US History | Honors | A− (3.7) | 3.7 | +0.5 | 4.2 | 1.0 |
| AP Biology | AP | B (3.0) | 3.0 | +1.0 | 4.0 | 1.0 |
| Spanish III (Regular) | Regular | A (4.0) | 4.0 | +0.0 | 4.0 | 1.0 |
| Total | 21.5 | 5.0 |
Weighted GPA = 21.5 ÷ 5.0 = 4.30
The same student has a 3.60 unweighted GPA and a 4.30 weighted GPA. Colleges that recalculate GPAs (most selective ones do) often strip the weighting and apply their own system — so your unweighted GPA still matters.
Cumulative GPA across semesters
Your cumulative GPA combines all the semesters you've completed so far. You don't average the semester GPAs — you pool all the quality points and all the credit hours:
Cumulative GPA = Total quality points (all semesters) ÷ Total credit hours (all semesters)
Example — two semesters:
| Semester | Quality Points | Credit Hours | Semester GPA |
|---|---|---|---|
| Fall (9th grade) | 18.5 | 5.0 | 3.70 |
| Spring (9th grade) | 17.5 | 5.0 | 3.50 |
| Cumulative | 36.0 | 10.0 | 3.60 |
This is why averaging semester GPAs (3.70 + 3.50 ÷ 2 = 3.60) happens to work only when every semester has the same number of credit hours. If one semester had more credits than another, pooling the quality points is the only correct method.
How to raise your GPA
Once you have low grades on your transcript, they stay — but their weight shrinks as you add more credit hours. A D in one class freshman year is much less damaging by senior year if you've built a strong record since then.
The math behind recovery: If you have a 2.8 GPA after 20 credit hours (56 quality points), and you earn a 3.8 average over the next 20 hours (76 quality points), your cumulative GPA becomes (56 + 76) ÷ 40 = 3.30. Each new semester has less ability to swing your cumulative GPA as the denominator grows.
Practical strategies:
- Front-load your hardest courses while your GPA denominator is still small (freshman year mistakes hurt more than senior year mistakes)
- If your school allows course retakes that replace the grade, use that strategically for your worst grades
- Choose AP/Honors courses you're genuinely confident in — a B in AP Calc (weighted 4.3) beats a B in regular Calc (3.0) without the risk of a C that drags everything down
- Focus on your unweighted GPA for college apps — that's what most admissions offices use after recalculation
FAQ
What is a good GPA for college admissions?
At highly selective colleges (acceptance rate under 20%), the median unweighted GPA of admitted students is typically 3.85–4.0. At most four-year public universities, a 3.0–3.5 unweighted GPA is competitive. Community college admissions are generally open-enrollment. The "good GPA" benchmark depends entirely on where you're applying.
Do colleges see weighted or unweighted GPA?
Most colleges receive both, but many recalculate your GPA using their own system — stripping the weighting and re-applying it based on their own standards. This is why a strong performance in genuinely challenging courses matters more than chasing a high weighted number in classes that happen to have an Honors label.
Does my GPA reset when I transfer schools?
At most colleges, transfer credits appear on your transcript but the grades don't carry into your GPA calculation — your institutional GPA starts fresh. Some schools calculate a combined GPA; check with the registrar. For high school transfers, whether the new school recalculates depends on their policy.
Can my GPA go above 4.0?
On a weighted scale, yes — AP and IB courses add a 1.0 bonus, so a full schedule of AP courses with A grades can push a weighted GPA to 4.5 or higher. On an unweighted scale, 4.0 is the maximum (since A and A+ both map to 4.0).
How do I calculate GPA with plus/minus grades?
Use the grade-point values in the table above (A− = 3.7, B+ = 3.3, etc.) instead of the whole-letter values. The calculation process is identical — just more precise. Not all schools use +/− grades; if yours doesn't, stick with whole numbers.