Letter-grade entry
Enter grades in a format familiar to US high-school transcripts.
Course-level planning
Model honors, AP, IB, and regular classes to understand GPA tradeoffs.
Admissions context
Connect GPA results to college, scholarship, and target planning workflows.
Weighted and unweighted high school GPA
Unweighted GPA uses the standard 4.0 scale. Weighted GPA adds extra points for honors, AP, IB, or advanced classes when your school policy allows it.
Colleges often recalculate GPA using their own rules, but seeing both versions helps students understand transcript strength and course rigor.
Why course rigor matters
A GPA is more meaningful when read beside the courses that produced it. Advanced courses can show readiness even when they are more difficult.
Use GradeAtlas to model regular and advanced courses separately before deciding whether a course load supports your admissions goals.
Standard 4.0 GPA Scale Reference Table
Most colleges and high schools in the United States calculate unweighted GPAs on a standard 4.0 scale. The table below outlines the letter grade, percentage equivalent, and GPA point mapping:
| Letter Grade | Percentage Range | Standard 4.0 GPA points | Weighted AP/IB points |
|---|---|---|---|
| A+ / A | 93–100% | 4.0 | 5.0 |
| A− | 90–92% | 3.7 | 4.7 |
| B+ | 87–89% | 3.3 | 4.3 |
| B | 83–86% | 3.0 | 4.0 |
| B− | 80–82% | 2.7 | 3.7 |
| C+ | 77–79% | 2.3 | 3.3 |
| C | 73–76% | 2.0 | 3.0 |
| C− | 70–72% | 1.7 | 2.7 |
| D+ | 67–69% | 1.3 | 2.3 |
| D | 65–66% | 1.0 | 2.0 |
| F | Below 65% | 0.0 | 0.0 |
Step-by-Step Worked GPA Calculation Example
Suppose you took 5 courses in a semester with different credit hours and letter grades. Here is how you calculate the credit-weighted GPA:
| Course | Letter Grade | GPA Value | Credits | Quality Points (Grade × Credits) |
|---|---|---|---|---|
| Calculus I | A | 4.0 | 4 | 4.0 × 4 = 16.0 |
| General Chemistry | B+ | 3.3 | 3 | 3.3 × 3 = 9.9 |
| Introduction to Writing | A− | 3.7 | 3 | 3.7 × 3 = 11.1 |
| Chemistry Lab | A | 4.0 | 1 | 4.0 × 1 = 4.0 |
| History 101 | C | 2.0 | 3 | 2.0 × 3 = 6.0 |
Step 1: Sum the attempted credits: 4 + 3 + 3 + 1 + 3 = 14 credits
Step 2: Sum the Quality Points: 16.0 + 9.9 + 11.1 + 4.0 + 6.0 = 47.0 Quality Points
Step 3: Divide quality points by total credits: 47.0 / 14 = 3.357 GPA
Your credit-weighted GPA for this semester is 3.36. Note how a standard average would have been (4.0 + 3.3 + 3.7 + 4.0 + 2.0)/5 = 3.40. The credit-weighted GPA is slightly lower because of the 'C' in the 3-credit history class, illustrating why credit weighting matters.
Academic GPA Benchmarks & Standards
Excellent (3.7 – 4.0)
Straight-A average. Standard threshold for summa/magna cum laude graduation honors, top-tier college admissions, and competitive scholarships.
Good Standing (3.0 – 3.69)
Mostly B grades with some As. Meets the entry requirements for most standard graduate schools, honors programs, and institutional scholarships.
Satisfactory (2.0 – 2.99)
Mostly C grades. The minimum average required to graduate from college or maintain good standing without academic probation warnings.
How to use this calculator
Choose high school scale
Use the US 4.0 scale or your school's weighted policy.
Add each class
Enter every course, grade, and credit or weight.
Separate advanced courses
Apply honors, AP, or IB weighting where your school allows it.
Compare results
Review weighted and unweighted outcomes for planning.
Frequently asked questions
What is a good high school GPA?
A 3.0 GPA is generally good, a 3.5 is strong, and a 3.8 or higher is competitive for many selective colleges, especially with rigorous coursework.
Can weighted GPA be above 4.0?
Yes. Weighted GPA can exceed 4.0 when a school adds extra grade points for advanced classes.
Do colleges use weighted GPA?
Some do, but many recalculate GPA using their own policies. They usually review both grades and course rigor.