Grading Scale

A = 93 - 100
A- = 90 - 92
B+ = 87 - 89
B = 83 - 86
B- = 80 - 82
C+ = 77 - 79
C = 73 - 76
C- = 70 - 72
D+ = 67 - 69
D = 63 - 66
D- = 60 - 62
F = 59 and below

Unweighted grade Point Average (GPA)/Weighted Grade Point Average (WGPA)

Both weighted and unweighted grade point averages (GPAs) are calculated. Weighted grade point average (WGPA) is based on an open-ended scale beginning with 0.00 and having no ceiling. Only the final grade achieved in each course is used to compute GPA and WGPA.  

All graded (non-pass/fail) courses, including Physical Education, Drivers Education and Health, are used in the calculation of GPA and WGPA. Each letter grade is assigned a numeric equivalent as indicated below:

A Grade
Weighted: 5.00
Unweighted: 4.00

A- Grade
Weighted: 4.66
Unweighted: 3.66

B+ Grade
Weighted: 4.33
Unweighted: 3.33

B Grade
Weighted: 4.00
Unweighted: 3.00

B- Grade
Weighted: 3.66
Unweighted: 2.66

C+ Grade
Weighted: 3.33
Unweighted: 2.33

C Grade
Weighted: 3.00
Unweighted: 2.00

C- Grade
Weighted: 2.66
Unweighted: 1.66

D+ Grade
Weighted: 2.33
Unweighted: 1.33

D Grade
Weighted: 2.00
Unweighted: 1.00

D- Grade
Weighted: 1.66
Unweighted: .66

F Grade
Weighted: 0
Unweighted: 0

  1. For each graded (non-pass/fail) course the student completes, with the exception of health and physical education, multiply the numeric equivalent of the grade received times the number of credits earned to determine the number of quality points awarded.

  2. Determine the sum of quality points earned for all courses for each separate year.

  3. Divide the quality point total for one year by the total number of credits attempted for that year. This will yield the grade point average for that year. The same method is used for calculating WGPA and GPA. AP, ACC, and all courses taken at Princeton University are weighted. Grade point equivalents are increased one full point for grades earned in weighted courses.

    For example: “B+” = 3.3 Standard “B+” = 4.3 Accelerated

  4. To determine the overall Grade Point Average, divide the total number of weighted quality points earned (sum of Weighted Quality Points from each year in high school) by the total number of credits attempted (sum of all credits attempted in high school).

Marking Period/Exam Weight/Calculation of Final Grades

For a full-year course five percentage grades are used (the four quarter grades and the midterm and the final exam). Each quarter = 20% of the grade and each exam = 10%

For a semester course, three percentage grades are included (two quarter grades and a final exam). The percentage values are added together. The sum is divided by the number of grades (see explanation below). That figure determines the final grade for the course. That number percentage is than converted to a letter grade according to the Princeton High School grading scale (see page 41). A minimum score of a 60% or D- is required to pass.

For example:

1st quarter = 93% A
2nd quarter = 89% B+
3rd quarter = 94% A
4th quarter = 90% A - 
Mid-year & Final exam average = 89% B+ (92% + 86% /2 = 89%)
Final grade = (455 divided by 5) 91% A-    

The weight given to final exams must be determined by one of the following methods:

  1.  For a mid-year exam and for a final exam, each exam would be weighted one-tenth for a total exam average of one fifth of the final grade.
  2. For semester courses, the final exam would count as one fifth of the final grade. (Multiply each report period by two and add to final exam average. Then divide by five.)

Process for Resolving Incomplete Grades 

  1. A grade of “Incomplete” (I) will be given only when there is just cause, e.g., work missing due to absence or illness. Otherwise, students are expected to submit work on time. While it is permissible under any circumstance to accept work that is late, students are expected to complete all work prior to the end of the marking period.
  2. Unless there are extenuating circumstances, students are expected to resolve incomplete grades no later than ten school days after the close of the marking period. If an extension is sought, a written request must go through the subject supervisor. 
  3. Students must be informed by the last day of the marking period if they will be receiving an incomplete. At that time they will be made aware of the ten-day requirement.
  4. Faculty members are discouraged from giving a grade of incomplete at mid-year for seniors. This can work to the student’s detriment when applying for college admission.

Review for Credit

Any student attending Princeton High School who receives an “F” in a Princeton High School course taken during the regular school year receives ZERO credits towards graduation for that course. Students who need the course or want to earn the credits lost by failing a course during the regular school year may opt to:

  • Repeat the course during a future regular school year. 
  • Enroll in a summer school program approved by Princeton High School.