Reference
The Complete GPA Scale
Every letter grade and every numeric GPA value on the 4.0 scale, individually explained — what it means, what percentage range it covers, and what it signals for admissions, scholarships, and graduate programs.
By letter grade
Letter Grade
GPA Scale
The standard US letter grade scale runs from A+ through F. Not every school uses plus/minus grades — but when they do, the GPA points differ significantly. An A (4.0) and an A- (3.7) are not the same, despite both being "A" grades.
By GPA number
Numeric GPA
Values
Every GPA value from 1.0 to 4.33, individually explained. Each page answers: what letter grade does this GPA represent, what percentage range does it cover, and how does it compare for admissions and scholarships?
4.33 GPA
A+ on 4.33 scale
4.0 GPA
A / A+
3.9 GPA
A
3.8 GPA
A
3.7 GPA
A−
3.6 GPA
A−
3.5 GPA
A−
3.4 GPA
B+ / A−
3.3 GPA
B+
3.0 GPA
B
2.7 GPA
B−
2.5 GPA
B−
2.3 GPA
C+
2.0 GPA
C
1.7 GPA
C−
1.5 GPA
D+ / C−
1.3 GPA
D+
1.0 GPA
D
Extended scale values
GPAs above 4.0 appear on the 4.33 scale (A+ = 4.33) and the 5.0 weighted scale. Values below 1.0 represent D− and F grades — also fully documented here.
Quick reference
Grade scale at a glance
| Letter Grade | 4.0 GPA | 4.33 GPA | Percentage Range |
|---|---|---|---|
| A+ | 4.0 | 4.33 | 97–100% |
| A | 4.0 | 4.0 | 93–96% |
| A− | 3.7 | 3.67 | 90–92% |
| B+ | 3.3 | 3.33 | 87–89% |
| B | 3.0 | 3.0 | 83–86% |
| B− | 2.7 | 2.67 | 80–82% |
| C+ | 2.3 | 2.33 | 77–79% |
| C | 2.0 | 2.0 | 73–76% |
| C− | 1.7 | 1.67 | 70–72% |
| D+ | 1.3 | 1.33 | 67–69% |
| D | 1.0 | 1.0 | 63–66% |
| D− | 0.7 | 0.67 | 60–62% |
| F | 0.0 | 0.0 | 0–59% |
Source: CollegeBoard BigFuture grade scale. A+ on the 4.0 scale = 4.0 (not 4.33); on the 4.33 scale A+ = 4.33. Individual school policies vary.