GPA Calculator
Semester and cumulative GPA, weighted or unweighted, from a simple list.
How to use GPA Calculator
- Type one course per line: name, letter grade, credits. For example "Biology, B+, 4".
- For weighted GPA, add AP, IB or Honors at the end of the line: "AP Physics, A, 1, AP".
- To update a cumulative GPA, enter your current GPA and the credits behind it.
How it works
GPA = total quality points ÷ total credits, where a course’s quality points are its grade points × its credits. Grade points use the most common US scale: A and 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, D− = 0.7, F = 0. You can also type points directly (3.5). Grades that carry no points, such as P (pass), W (withdrawn) and I (incomplete), are listed but not counted.
Weighted GPA adds 1.0 to the points of AP, IB and college-level courses and 0.5 to Honors courses (a failed course gets no bonus), so an A in an AP class counts 5.0. Cumulative GPA combines the new courses with your earlier record: (earlier GPA × earlier credits + new quality points) ÷ all credits.
Example
Calculus A− (4 credits), English B+ (3), History B (3), Chemistry A (4): quality points 14.8 + 9.9 + 9 + 16 = 49.7 over 14 credits = 3.55.
Frequently asked questions
How is GPA calculated?
Multiply each course’s grade points by its credits, add the results, and divide by the total credits. Courses with more credits count for more.
What is the difference between weighted and unweighted GPA?
Unweighted GPA treats every course the same on the 4.0 scale. Weighted GPA gives extra points for harder courses (commonly +1.0 for AP and IB, +0.5 for Honors), so it can exceed 4.0.
My school has no credits. What do I enter?
Leave the credits out. Every course then counts equally (1 credit each).
Does an A+ count as 4.3?
Here A+ counts 4.0, which is the most common rule. Some schools use 4.3: in that case type 4.3 instead of the letter.
Can I convert a percentage to GPA?
Roughly: 93%+ is 4.0, 90–92 is 3.7, 87–89 is 3.3, 83–86 is 3.0, 80–82 is 2.7, and so on down to below 60 as 0. Schools set their own cut-offs.
Limitations
- Uses the common US 4.0 scale; schools and countries differ, so check your handbook or transcript key.
- Weighted bonuses (+1.0, +0.5) are the usual convention, not a universal rule.
- Repeated-course and grade-forgiveness policies are not applied.
Last reviewed November 9, 2026. How we build and test tools.