GPA, Grade & Percentage Converter
Convert bidirectionally between numeric 4.0 GPA values, letter grades with plus/minus, and percentage score ranges.
Instantly convert between standard 4.0 GPA, letter grades, and percentage scores. Enter a value in any box to recalculate all corresponding representations.
Standard Percentage to GPA Conversion Chart
| Percentage Range | Letter Grade | 4.0 GPA Equivalent |
|---|---|---|
| 97% – 100% | A+ | 4.00 |
| 93% – 96% | A | 4.00 |
| 90% – 92% | A- | 3.70 |
| 87% – 89% | B+ | 3.30 |
| 83% – 86% | B | 3.00 |
| 80% – 82% | B- | 2.70 |
| 77% – 79% | C+ | 2.30 |
| 73% – 76% | C | 2.00 |
| 70% – 72% | C- | 1.70 |
| 67% – 69% | D+ | 1.30 |
| 63% – 66% | D | 1.00 |
| 60% – 62% | D- | 0.70 |
| 0% – 59% | F | 0.00 |
Frequently Asked Questions
Grading scales vary significantly by institution. In most standard college and high school systems using plus/minus modifiers, 80–82% is assigned a B- (2.7 grade points). In simple 10-point scale systems without minuses, 80–89% is a flat B (3.0 grade points). In weighted high school AP/IB classes, an 80% can earn up to 3.7 or 4.0 weighted grade points. Always verify your school district or university registrar rubric.
A C+ typically represents scores in the 77% to 79% range. It indicates satisfactory academic mastery above the minimum passing benchmark. While 2.3 is standard across most U.S. institutions, some universities use 2.333 or omit plus/minus modifiers entirely.
Most secondary and post-secondary institutions map 70–72% to a C- (1.7 grade points). In schools without plus/minus grading, 70–79% constitutes the full C bracket (2.0 grade points). Always verify with your institution’s official handbook.
Standard U.S. grading typically caps grade points at 4.0 for both A and A+ so that students cannot exceed a 4.0 unweighted GPA. However, select colleges (and law school LSAC calculations) credit an A+ as 4.33 quality points.
The standard U.S. breakdown is: 90–100% = A, 80–89% = B, 70–79% = C, 60–69% = D, below 60% = F. While some curved college STEM courses may assign a C to lower raw percentages, standard institutional mapping treats 60% as a D.
A 75% percentage mark corresponds to a C grade (2.0 quality points) on standard U.S. 10-point grading scales. A 3.0 represents a solid B average.
Under the standard 10-point plus/minus system: 93–96% is an A (4.0), 97–100% is an A+ (4.0), and 90–92% is an A- (3.7). However, individual instructors and syllabi can establish custom cutoffs (for example, requiring 94% for a full A).