Stony Brook University GPA Calculator
Calculate your GPA at Stony Brook University in Stony Brook, NY, using its grading scale. Add your courses, grades, and credit hours below.
Also written SBU, SUNY Stony Brook.
GPA across 10 credits
Stony Brook University grading scale
Stony Brook uses .33/.67 increments (A− = 3.67, D+ = 1.33); no A+ and no D−.
| Letter grade | Grade points |
|---|---|
| A+ | 4.0 |
| A | 4.0 |
| A- | 3.67 |
| B+ | 3.33 |
| B | 3.0 |
| B- | 2.67 |
| C+ | 2.33 |
| C | 2.0 |
| C- | 1.67 |
| D+ | 1.33 |
| D | 1.0 |
| D- | 0.67 |
| F | 0.0 |
How to calculate your Stony Brook GPA
- Enter each course and choose the letter grade you earned.
- Add the credit hours for each course.
- Your credit-weighted GPA updates instantly above.
Academic policies at Stony Brook
Good academic standing
You need a cumulative GPA of at least 2.00 to stay in good academic standing. You are in good academic standing as long as you keep at least a 2.0 cumulative GPA and are not on academic warning. Falling below a 2.0 in your first semester triggers a warning; two consecutive semesters below moves you to probation, and further shortfalls can lead to suspension or dismissal.
Repeating a course
As of summer 2025, you can retake any course regardless of your original grade as long as a seat is open, and only your highest grade counts toward your cumulative GPA — though every attempt still appears on your transcript. Retaking three or more times requires department approval. Note that health-related graduate and professional programs may recalculate your GPA using all attempts rather than just the highest.
Sources
The grading scale and policies above were checked against Stony Brook University's own published policies on July 28, 2026:
- Stony Brook Undergraduate Education — Academic Standing Levels and Actions
- Stony Brook Registrar — Course Retakes
Policies change. If you spot something out of date, tell usand we'll correct it.
Looking for other schools? Browse the full university list, or use the general GPA calculator.
Frequently asked questions
How is GPA calculated at Stony Brook?
Each letter grade maps to grade points on Stony Brook University's scale (4.0 scale, thirds (A− = 3.67, B+ = 3.33)). Multiply each course's grade points by its credit hours, sum them, and divide by total credits.
What is the maximum GPA at Stony Brook?
The maximum GPA is 4.0 on this scale.
Can you retake a course to raise your GPA at Stony Brook?
As of summer 2025, you can retake any course regardless of your original grade as long as a seat is open, and only your highest grade counts toward your cumulative GPA — though every attempt still appears on your transcript. Retaking three or more times requires department approval. Note that health-related graduate and professional programs may recalculate your GPA using all attempts rather than just the highest.
Is this the official calculator?
No — this is a free study tool. Always confirm your GPA against Stony Brook University's official registrar or student portal.
Related schools
Other schools on the 4.0 scale, thirds (a− = 3.67, b+ = 3.33)
These convert letter grades to grade points exactly the way Stony Brook does.
Browse all 93 schools or compare every scale side by side on the grading scales page.