All courses taught in Prince William County Public Schools are assigned grades as follows in accordance with Regulation 661-2, “Assessment and Grading Practices - Middle” :
| Letter Grade | 8th Grade and High School Course Numeric Equivalent | 6th and 7th Grade Numeric Equivalent |
|---|---|---|
| A | 90-100 | 3.5-4.0 |
| B+ | 87-89 | 3.3-3.4 |
| B | 80-86 | 2.5-3.2 |
| C+ | 77-79 | 2.3-2.4 |
| C | 70-76 | 1.5-2.2 |
| D+ | 67-69 | 1.3-1.4 |
| D | 60-66 | 0.5-1.2 |
| F | 59 and below | 0.0-0.4 |