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EducationHow GPA is calculated
GPA (Grade Point Average) is the standard US system for measuring academic performance on a scale from 0 to 4.0. Each letter grade corresponds to a numeric value:
- A (90-100%) = 4.0 points
- B (80-89%) = 3.0 points
- C (70-79%) = 2.0 points
- D (60-69%) = 1.0 point
- F (below 60%) = 0.0 points
The role of credit hours in the calculation
GPA is not a simple average of grades but a weighted average, where the weight is each course's credit hours. Formula: GPA = sum of (grade point × credits) / sum of all credits. This means a course with more credit hours (e.g., a core subject) influences the final GPA more than a course with fewer credits (e.g., an elective).
Weighted vs unweighted GPA
Unweighted GPA uses the standard 4.0 scale equally for all courses, regardless of difficulty. Weighted GPA adds bonus points for advanced courses (Honors, AP, IB) — for example, an "A" in an AP course might count as 5.0 instead of 4.0, allowing the GPA scale to exceed 4.0.
Why tracking your GPA matters
- College admissions: GPA is one of the key factors considered in admission applications.
- Scholarships: many scholarship programs have minimum GPA requirements.
- Academic standing: some institutions require maintaining a minimum GPA to keep student status.
- Course load planning: understanding how a specific course affects GPA helps make informed decisions when choosing subjects.
This calculator uses the standard unweighted 4.0 scale. Specific grade conversion rules may vary by institution — check your college or university's official policy.
FAQ
How is GPA calculated?
GPA is calculated by dividing the sum of (grade point value × course credit hours) for all courses by the total number of credit hours.
What are credit hours?
Credit hours represent a course's "weight" — how many hours of coursework it represents. Courses with more credits have a greater impact on the final GPA.
What's the difference between weighted and unweighted GPA?
Unweighted GPA uses the standard 4.0 scale for all courses. Weighted GPA adds bonus points for advanced courses (Honors, AP), which can push the scale above 4.0.