Semester GPA Calculator
Find your semester GPA from grades and credits.
Comma-separated (e.g. 4 = A)
Same order as grades
Results update as you type.
How it works
Your semester grade point average, or GPA, is a weighted average of your course grades for a term, and this calculator computes it from your grade points and credit hours. You enter the grade points earned in each course, on the usual four-point scale where an A is 4.0, and the credit hours for each course in the same order, and it returns your semester GPA and total credits. The calculation is a credit-weighted average: it multiplies each course's grade points by its credits, sums those products, and divides by the total credits. Weighting by credits matters because a five-credit course affects your GPA far more than a one-credit course, so a strong grade in a heavy course carries more weight than the same grade in a light one. This mirrors exactly how schools compute official GPAs. To use it, convert each letter grade to its point value using your institution's scale, since some schools use pluses and minuses, like 3.7 for an A-minus, while others do not. The result is your GPA for that single term; combining several semesters gives your cumulative GPA, which is calculated the same way across all courses. Students use this to track performance, set goals, and check standing for honors or eligibility. Enter your grade points and credit hours to compute your semester GPA.
GPA = Σ(grade points × credits) / Σcredits
Semester GPA is a credit-weighted average of your course grades. Each course's grade points are multiplied by its credit hours, these products are summed, and the total is divided by the sum of all credit hours. Courses worth more credits therefore influence the GPA more, reflecting their greater share of your academic load.
Source:Academic grading
We review all our tools from time to time to ensure accuracy.
Worked example
How to use this calculator
- 1
Enter your values
Enter grade points and credit hours.
- 2
Adjust the options
Fine-tune any options to match your situation.
- 3
Read your result
Semester GPA updates instantly as you type — no button to press.
Frequently asked questions
How do I calculate my semester GPA?
Multiply each course's grade points by its credit hours, add up those products, and divide by the total credit hours. This gives a credit-weighted average. Enter your grade points and matching credits into the calculator, and it computes your semester GPA and total credits automatically using this standard method.
Why is GPA weighted by credits?
Courses carry different credit hours reflecting their workload, so a course worth more credits should influence your GPA more. Weighting by credits ensures a high or low grade in a heavy course counts appropriately, matching how schools calculate official GPAs. A simple average of grades, ignoring credits, would misrepresent your true performance.
How do I convert letter grades to grade points?
Use your school's grading scale. Commonly an A is 4.0, B is 3.0, C is 2.0, and D is 1.0, with F as 0. Many schools add pluses and minuses, such as 3.7 for an A-minus or 3.3 for a B-plus. Convert each letter grade to its point value before entering it.
What is the difference between semester and cumulative GPA?
Semester GPA covers only the courses in one term, while cumulative GPA averages all courses across every semester you have completed. Both use the same credit-weighted formula. Your cumulative GPA changes gradually as each new semester's grades are added, and it is usually the figure used for honors, transfers, and eligibility.
Do the two lists need the same number of entries?
Yes. Each grade must pair with the credit hours for that same course, so enter the grade points and credits in the same order with one entry per course. The calculator matches them position by position, so a mismatch in count or order would produce an incorrect GPA.