Standard 4.0 scale mapping
Converts A, B, C, D, F grades directly to their 4.0 scale equivalents.
Weighted comparison
Allows comparing your unweighted GPA against weighted results.
Admissions prep
Aligns with how college admissions offices recalculate GPAs.
What is an unweighted GPA?
An unweighted GPA is calculated on a standard 4.0 scale, where every class is treated equally regardless of its difficulty. An 'A' in an advanced AP class and an 'A' in a regular class both receive 4.0 grade points.
This scale is widely used by colleges to compare applicants on an equal footing, as weighting policies vary significantly between high schools.
Comparing unweighted vs weighted GPA
While weighted GPAs reward students for taking rigorous courses, unweighted GPAs show the raw average of the grades earned. A student with straight Bs in AP classes might have a lower unweighted GPA than a student with straight As in regular classes, but colleges look at both numbers alongside the transcript.
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
Input courses and grades
Add each course and select the final letter grade received.
Enter credit hours
Specify the credits or units for each class (default is 1 for high schools).
Verify standard 4.0 mapping
Ensure no extra weight points are applied for AP or Honors classes.
View your final GPA
Review the resulting unweighted average.
Frequently asked questions
What is the highest possible unweighted GPA?
The highest possible unweighted GPA is 4.0, representing straight As in all classes.
How do you calculate unweighted GPA?
Assign standard grade points (A=4, B=3, C=2, D=1, F=0) to each class, sum the points, and divide by the total number of classes.
Do colleges prefer weighted or unweighted GPA?
Colleges look at both. They use unweighted GPA to see raw performance and weighted GPA (or course list) to assess academic rigor.
Can you have a 4.5 unweighted GPA?
No, unweighted GPAs are capped at 4.0. Only weighted GPAs can exceed 4.0.
How do AP courses affect unweighted GPA?
AP courses are calculated the same as regular courses on an unweighted scale (an A is a 4.0, a B is a 3.0), but they show rigor on your transcript.
Does unweighted GPA include electives?
Yes, typically all credit-bearing courses on a high school transcript are included in the unweighted GPA.