GPA Calculator
Add your courses with letter grades and credit hours to compute your GPA on the standard 4.0 scale.
A GPA calculator with dynamic course rows: pick a letter grade (including plus/minus) and credit hours per course, add as many rows as you need, and get your weighted GPA, total credits, and quality points on the standard unweighted 4.0 scale used by most US colleges.
How to use this calculator
- Step 1: For each course, select the letter grade you earned.
- Step 2: Enter the course's credit hours.
- Step 3: Click '+ Add course' for more rows, or ✕ to remove one.
- Step 4: Click Calculate to see your GPA, total credits, and quality points.
The formula
GPA = Σ(grade points × credits) / Σ(credits)
Worked example
An A in a 4-credit course (16 points), a B+ in a 3-credit course (9.9 points), and a C in a 3-credit course (6 points) gives 31.9 / 10 = 3.19 GPA.
Frequently Asked Questions
How is GPA calculated?
Each letter grade maps to grade points (A = 4.0, B = 3.0, and so on), each course's points are multiplied by its credit hours to get quality points, and GPA is total quality points divided by total credit hours. A 4-credit A counts more than a 1-credit A because it's weighted by credits.
What grade scale does this use?
The standard unweighted 4.0 scale: A+/A = 4.0, A− = 3.7, B+ = 3.3, B = 3.0, B− = 2.7, C+ = 2.3, C = 2.0, C− = 1.7, D+ = 1.3, D = 1.0, F = 0. Some schools use variants — notably A+ = 4.3 or no plus/minus grades at all — so check your school's scale if the result differs from your transcript.
Does an F hurt more than just earning zero points?
Yes, because its credit hours still count in the denominator. An F in a 3-credit course adds 0 quality points but 3 credits, dragging the average down. This is why withdrawing (which usually doesn't affect GPA) is sometimes better than failing, though withdrawal has its own consequences.
How can I raise my GPA fastest?
Earn high grades in high-credit courses — they move the weighted average most. Also remember GPA is cumulative: the more credits you've already banked, the harder each new grade has to work to move the needle. Retaking a course you failed replaces a 0.0 with a higher grade, which is the single biggest lever most students have.
Is this weighted or unweighted GPA?
Unweighted: every course uses the same 4.0 scale regardless of difficulty. Weighted GPAs give honors/AP/IB courses bonus points (often on a 5.0 scale). Colleges frequently recalculate your GPA on their own scale anyway, so unweighted is the right baseline for planning.