Standard Grading Scale Reference
Understand how percentage scores translate into letter grades and GPA quality points across high schools and universities.
1. Standard Plus/Minus Grading Scale
The most widely used grading standard in modern US higher education and secondary schools.
Standard Academic Grading Scale
Grading Scale| Letter Grade | Percentage Range | Grade Point Average (GPA) | Academic Standing |
|---|---|---|---|
| A+ | 97% – 100% | 4.0 | Honors Tier |
| A | 93% – 96% | 4.0 | Honors Tier |
| A- | 90% – 92% | 3.7 | Honors Tier |
| B+ | 87% – 89% | 3.3 | Passing with Distinction |
| B | 83% – 86% | 3.0 | Passing with Distinction |
| B- | 80% – 82% | 2.7 | Passing with Distinction |
| C+ | 77% – 79% | 2.3 | Passing with Distinction |
| C | 73% – 76% | 2.0 | Passing with Distinction |
| C- | 70% – 72% | 1.7 | Passing with Distinction |
| D+ | 67% – 69% | 1.3 | Needs Improvement |
| D | 63% – 66% | 1.0 | Needs Improvement |
| D- | 60% – 62% | 0.7 | Needs Improvement |
| F | < 60% | 0.0 | Needs Improvement |
2. Straight 10-Point Scale (No Plus/Minus)
Common in school districts where grades do not utilize + or - modifiers.
Standard Academic Grading Scale
Grading Scale| Letter Grade | Percentage Range | Grade Point Average (GPA) | Academic Standing |
|---|---|---|---|
| A | 90% – 100% | 4.0 | Honors Tier |
| B | 80% – 89% | 3.0 | Passing with Distinction |
| C | 70% – 79% | 2.0 | Passing with Distinction |
| D | 60% – 69% | 1.0 | Needs Improvement |
| F | < 60% | 0.0 | Needs Improvement |
3. Strict 7-Point Grading Scale
Used by select private institutions and specialized academic programs.
Standard Academic Grading Scale
Grading Scale| Letter Grade | Percentage Range | Grade Point Average (GPA) | Academic Standing |
|---|---|---|---|
| A+ | 98% – 100% | 4.0 | Honors Tier |
| A | 95% – 97% | 4.0 | Honors Tier |
| A- | 93% – 94% | 3.7 | Honors Tier |
| B+ | 90% – 92% | 3.3 | Passing with Distinction |
| B | 87% – 89% | 3.0 | Passing with Distinction |
| B- | 85% – 86% | 2.7 | Passing with Distinction |
| C+ | 82% – 84% | 2.3 | Passing with Distinction |
| C | 79% – 81% | 2.0 | Passing with Distinction |
| C- | 77% – 78% | 1.7 | Passing with Distinction |
| D+ | 75% – 76% | 1.3 | Needs Improvement |
| D | 72% – 74% | 1.0 | Needs Improvement |
| D- | 70% – 71% | 0.7 | Needs Improvement |
| F | < 70% | 0.0 | Needs Improvement |
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