GPA Calculator
Semester GPA from letter grades and credits on the 4.0 scale — weighted or unweighted — plus your cumulative GPA.
Courses
Cumulative GPA (optional)
About this tool
Grade point average is the one number that follows you from high-school transcripts to scholarship forms to graduate applications, yet most students only find out what it is when the report card arrives. This free GPA calculator lets you work it out — or plan it — in seconds. Add a row per course, pick the letter grade and the credit hours, and your semester GPA on the 4.0 scale updates as you type, along with total credits and total grade points. Switch on weighted GPA to give Honors courses +0.5 and AP or IB courses +1.0, capped at 5.0, the way most American high schools do.
The cumulative GPA panel combines this semester with everything before it: enter your previous GPA and the credits it covers and the calculator blends them credit-for-credit, exactly as a registrar would. It is just as handy for what-if planning — change a B to an A in a 4-credit class and watch the effect. Everything runs in your browser, so your grades stay on your device.
How to calculate your GPA
- For each course, choose the letter grade and enter the credit hours (course name is optional). Add or remove rows as needed.
- Tick the weighted option and set Honors or AP per course if your school uses a 5.0 weighted scale.
- Read your GPA, then enter a previous GPA and credits to see your new cumulative GPA.
Letter grade scale
| Letter | Unweighted | Honors (+0.5) | AP / IB (+1.0) |
|---|---|---|---|
| A+ / A | 4.0 | 4.5 | 5.0 |
| A− | 3.7 | 4.2 | 4.7 |
| B+ | 3.3 | 3.8 | 4.3 |
| B | 3.0 | 3.5 | 4.0 |
| B− | 2.7 | 3.2 | 3.7 |
| C+ | 2.3 | 2.8 | 3.3 |
| C | 2.0 | 2.5 | 3.0 |
| C− | 1.7 | 2.2 | 2.7 |
| D+ | 1.3 | 1.8 | 2.3 |
| D | 1.0 | 1.5 | 2.0 |
| F | 0.0 | 0.0 | 0.0 |
Scales vary slightly between schools — some award 4.3 for an A+ or skip the plus/minus steps entirely. Check your institution's policy if the exact number matters for an application.
Frequently asked questions
How is GPA calculated?
Each letter grade maps to grade points on the 4.0 scale (A = 4.0, B = 3.0, C = 2.0 and so on). Multiply each course's points by its credit hours to get quality points, add them all up, and divide by the total credits. For example an A in a 3-credit course, a B in a 3-credit course and a C in a 4-credit course give (12 + 9 + 8) ÷ 10 = 2.90.
What is the difference between weighted and unweighted GPA?
An unweighted GPA treats every course the same, with a maximum of 4.0. A weighted GPA gives extra credit for harder classes — typically +0.5 for Honors and +1.0 for AP or IB — so an A in an AP class counts as 5.0 and the scale tops out at 5.0. Tick the weighted option and choose a level per course to see both figures; an F earns 0 either way.
How do I calculate my cumulative GPA?
Enter your previous cumulative GPA and the number of credits it covers in the Cumulative GPA panel. The calculator multiplies them to recover your earlier quality points, adds this semester's points and credits, and divides by the combined total — exactly how a registrar does it, so the result matches your transcript.
Do pass/fail or withdrawn courses count?
Usually not. Most schools exclude pass/fail, audit and withdrawn (W) courses from the GPA calculation because they carry no grade points, even though they may count toward graduation credits. Leave those rows out, or remove them, so they do not dilute your average.
What is considered a good GPA?
It depends on the context. A 3.0 (B average) is a common cutoff for scholarships and graduate programs, 3.5 and above is generally considered strong, and 3.7+ puts you in honors territory at most schools. Competitive universities often look for 3.8 or higher unweighted, but they also consider course rigor, which is why weighted GPA matters.