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GPA Calculator: Calculate Your GPA from Grades & Credits
Your GPA (Grade Point Average) is the weighted average of your grades across all your courses, measured on a scale (usually 4.0 in the US). It’s calculated using your letter grades (or percentages) and the credit hours for each course. This calculator works for high school, college, and university. Enter your courses, grades, and credits, and the calculator shows your GPA for the current semester (term GPA) and your overall GPA (cumulative GPA) if you include your previous academic record.
How to calculate GPA
GPA is calculated using quality points. For each course, you multiply the grade’s GPA value by the credit hours. Then you add up all the quality points and divide by the total credit hours.
Formula: GPA = Total Quality Points ÷ Total Credit Hours
Example:
- Math: B+ (3.3 GPA) × 3 credits = 9.9 quality points
- History: A (4.0 GPA) × 3 credits = 12.0 quality points
- Science: A- (3.7 GPA) × 4 credits = 14.8 quality points
Total quality points: 9.9 + 12.0 + 14.8 = 36.7 Total credits: 3 + 3 + 4 = 10 GPA: 36.7 ÷ 10 = 3.67
The more credits a course has, the more it affects your GPA. A 4-credit A matters more than a 2-credit A because it contributes more quality points.
The calculator has two modes
Semester vs. Cumulative Mode
Semester Only
Use this to calculate your GPA for just the current term. Enter your courses for this semester, and the calculator shows your term GPA. This is useful if you’re checking how well you’re doing this semester or if you’re a first-year student without a previous GPA yet.
Semester + Cumulative
Use this to update your overall GPA. Enter your current semester courses AND your previous cumulative GPA and completed credits. The calculator combines them to show your new cumulative GPA. For example, if you have a 3.2 GPA with 45 completed credits, and you’re taking 15 new credits this semester, the calculator factors both into your updated cumulative GPA.
Most students use “Semester + Cumulative” mode because they want to see how this term affects their overall GPA.
The “Needed Term GPA” Feature
If you’re in “Semester + Cumulative” mode, the calculator can show you the term GPA you need to reach a target cumulative GPA.
For example:
- Your current cumulative GPA: 3.2
- Completed credits: 45
- New credits this semester: 15
- Target cumulative GPA: 3.5
The calculator shows: “You need a 4.1 term GPA to reach your target.”
If the required GPA exceeds your school’s maximum (e.g., 4.0), it means the target isn’t reachable this semester. You’d need more semesters to raise your cumulative GPA that high. This is planning utility. Before the semester starts, you can set your target and see how well you need to perform. During the semester, you can check if you’re on track.
To use this feature, enter your target GPA in the “Target GPA” field.
Credit Hours Explained
Credit hours (sometimes called “credit units” or “semester hours”) measure how much a course counts toward your degree. They’re usually based on how many hours per week the class meets.
Typical credit values:
- 3 credits: standard class (3 hours per week)
- 4 credits: lab science, intensive course
- 1 credit: PE, seminar, workshop
- 0 credits: pass/fail course, audit
Credit hours matter for GPA because they weight the quality points. A 4-credit course has more impact on your GPA than a 1-credit course, even if you get the same grade in both. Your transcript lists the credits for each course. If you’re not sure, ask your registrar or check your school’s course catalog.
Enter the exact credit value for each course. The calculator handles decimals (like 1.5 credits).
Rounding Your GPA
GPA rounding policies vary by institution. Some schools round to the nearest hundredth (3.67), others round up or down, and some don’t round at all.
The calculator offers four rounding options:
- Nearest: Standard rounding (.5 rounds up). 3.675 becomes 3.68.
- Always up (ceiling): Always rounds up. 3.671 becomes 3.68.
- Truncate (floor): Always rounds down. 3.679 becomes 3.67.
- None: Shows the exact value with full precision.
Check your school’s policy. Most use “Nearest” rounding. If you’re not sure, leave it on the default.
Rounding matters for thresholds like honors eligibility (often 3.5 or 3.7). A 3.695 rounds to 3.70, which might qualify.
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