How to use it
- Type one course per line: the name, the credits and the letter grade. Separate the parts with spaces or commas.
- In weighted mode, add honors, AP or IB at the end of a line for a harder course.
- Enter your GPA and credits so far to see your Cumulative GPA. Leave them empty to see only these courses.
- Check Lines that could not be read: each line there is named by its number, so you can fix it.
How the GPA is calculated
Each letter grade has a number of grade points. A course's points are its grade points times its credits. The GPA is the total points of all courses divided by the total credits, rounded to two decimals.
Registrars work this way: the grade points of each letter come from the school's grading system. At Indiana University Indianapolis an A+ and an A are both 4.0, an A- is 3.7, a B+ is 3.3 and an F is 0.0. Some schools give A+ 4.3, which you can choose above.
GPA = (credits₁ × points₁ + credits₂ × points₂ + …) ÷ (credits₁ + credits₂ + …)
Cumulative GPA = (prior GPA × prior credits + this list's points) ÷ (prior credits + this list's credits)| Letter | Points | Letter | Points |
|---|---|---|---|
| A+ / A | 4.0 | C+ | 2.3 |
| A- | 3.7 | C | 2.0 |
| B+ | 3.3 | C- | 1.7 |
| B | 3.0 | D+ | 1.3 |
| B- | 2.7 | D | 1.0 |
| D- / F | 0.7 / 0.0 |
Weighted and unweighted scales
On the unweighted scale every course counts by its letter only. Many high schools also weight honors courses by 0.5 and AP or IB courses by 1.0, so that a B in an AP course counts as more than a B in a regular course. Weighted GPAs can go above 4.0.
These weights are a common convention, not a national rule. Your school decides its own, and its transcript shows which figure it uses. An F stays 0.0 even in an AP course.
What this calculator does not include
- Pass/fail, withdrawn and incomplete grades, which are left out of the GPA at most schools.
- Grade forgiveness or retake rules, which can change a transcript GPA.
- Your school's own rounding or GPA rules, for example a cap on weighted points.
Worked example: six courses and a prior GPA
Calculus I is 4 credits at A: 4 × 4.0 = 16.0 points. Introduction to Biology is 4 credits at B+: 4 × 3.3 = 13.2. English Composition is 3 credits at A-: 3 × 3.7 = 11.1. World History is 3 credits at B: 3 × 3.0 = 9.0. Spanish II is 4 credits at C+: 4 × 2.3 = 9.2. Physical Education is 1 credit at A: 1 × 4.0 = 4.0.
The total is 62.5 points over 19 credits: 62.5 ÷ 19 = 3.29. With 30 earlier credits at a GPA of 3.10, the cumulative GPA is (3.10 × 30 + 62.5) ÷ 49 = 3.17.
| Course | Credits | Grade | Points |
|---|---|---|---|
| Calculus I | 4 | A | 4.00 |
| Introduction to Biology | 4 | B+ | 3.30 |
| English Composition | 3 | A- | 3.70 |
| World History | 3 | B | 3.00 |
| Spanish II | 4 | C+ | 2.30 |
| Physical Education | 1 | A | 4.00 |
Frequently asked questions
Which point values does a US college use?
Most colleges use the 4.0 scale: A and A+ are 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 and F 0.0. Check your registrar's grading page, because a few schools give A+ 4.3.
Is a weighted GPA the same as the GPA on my transcript?
Not always. The weighted scale is set by each high school. Some transcripts show both an unweighted and a weighted GPA, so use the figure your school reports for admissions.
Why does my GPA change with the credits of each course?
A 4-credit course counts four times as much as a 1-credit course. A GPA is a credit-weighted average, so a strong grade in a large course moves it more than the same grade in a small one.
Do I need to enter every course I have ever taken?
For a cumulative GPA, enter your earlier GPA and the total credits behind it, then the courses you want to add. Courses you failed and retook may count differently under your school's retake rule.
Does the calculator keep my courses or send them anywhere?
No. Everything is calculated in your browser, and nothing you type is stored or sent to our server.
Sources
Figures and text last checked on Tuesday, November 10, 2026.