Semester GPA Calculator
Calculate your semester GPA from up to 5 courses. Enter each course's letter grade and credit hours.
How to use this tool
- Enter course 1 grade, course 1 credits, course 2 grade, course 2 credits, course 3 grade and course 3 credits in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your semester gpa and the full breakdown beneath it.
Enter your letter grades and credit hours for each course this semester to instantly calculate your semester GPA on a 4.0 scale.
⚠ This tool provides general estimates for education only and is not financial, tax or legal advice. Figures may not reflect your situation — verify with a qualified professional.
Formula
Grade Points per Course = Grade Points × Credit Hours
Semester GPA = Σ(Grade Points × Credits) ÷ Σ(Credits)
Grade scale: A = 4, B = 3, C = 2, D = 1, F = 0.
How it works
The calculator converts each letter grade to its numeric grade-point value using the standard 4.0 scale (A = 4, B = 3, C = 2, D = 1, F = 0), multiplies each course's grade points by its credit hours to obtain quality points, sums all quality points, then divides by total credit hours. This mirrors the GPA method used by most US colleges and universities. The tool supports up to three courses and does not account for plus/minus grade variants or institutional variations in grade-point scales.
Worked example
- Course 1: A (4 pts) × 3 credits = 12 quality points. Course 2: B (3 pts) × 4 credits = 12 quality points. Course 3: A (4 pts) × 3 credits = 12 quality points.
- Total quality points = 12 + 12 + 12 = 36.
- Total credits = 3 + 4 + 3 = 10.
- Semester GPA = 36 ÷ 10 = 3.6.
Semester GPA = 3.6 over 10 total credits
Common mistakes to avoid
- Adding up grade points and dividing by the number of courses instead of by total credit hours, ignoring that a 4-credit course counts more than a 1-credit course.
- Entering a +/- letter grade (e.g., B+) and mapping it to the whole-point value (3.0) instead of the correct 3.3, understating the GPA.
- Including pass/fail courses in the GPA calculation; P/F credits do not carry grade points and should be excluded from both numerator and denominator.
Key terms
- GPA (Grade Point Average)
- A numeric summary of academic performance calculated as total quality points divided by total credit hours.
- Credit hours
- A unit measuring the weight of a course, typically corresponding to the number of hours spent in class per week per semester.
- Quality points
- The product of a course's grade-point value and its credit hours; the building block of GPA calculation.
- 4.0 scale
- The most common grading scale in US higher education, where A = 4.0 is the maximum achievable grade point.
- Semester GPA
- GPA calculated using only the courses taken in one academic semester, as distinct from cumulative GPA.
Frequently asked questions
- How is GPA calculated?
- Each letter grade is converted to grade points (A=4, B=3, C=2, D=1, F=0). GPA = total grade points ÷ total credit hours.
- What is a good GPA?
- A 3.0 (B average) is generally considered satisfactory. A 3.5+ (B+/A- average) is often required for honor rolls and graduate school.