Calculate your GPA in seconds
Add your courses, grades, and credit hours to get your grade point average on the standard 4.0 scale — no sign-up, instant results.
Your GPA
3.63
Unweighted · 4.0 scale
Total credits
10
Quality points
36.3
What is a GPA and how is it calculated?
Your GPA (grade point average) is a single number that summarizes your academic performance. Each letter grade is worth a set number of grade points — an A is 4.0, a B is 3.0, a C is 2.0, and so on — and each course is weighted by how many credit hours it carries.
To calculate GPA, multiply each course's grade points by its credit hours to get quality points, add up all the quality points, then divide by the total number of credits. A higher-credit course therefore moves your GPA more than a one-credit elective with the same grade.
This calculator uses the most common unweighted 4.0 scale. If your school weights honors or AP/IB classes, add the boost to those grade points before entering them, or treat the result as your unweighted baseline.
How to use the GPA calculator
Enter one row per course. The GPA updates automatically as you type — there's no calculate button to press.
Add your courses
Type a name for each class (optional) and use “Add course” for as many rows as you need.
Pick a grade and credits
Choose the letter grade from the dropdown and enter how many credit hours the course is worth.
Read your GPA
Your grade point average, total credits, and quality points appear instantly at the bottom.
GPA formula
Convert each grade to its point value (A = 4.0, B = 3.0, …), multiply by the course's credit hours to get quality points, and sum those quality points across all courses.
Divide the total quality points by the total credit hours. The result is your GPA, normally rounded to two decimal places.
For a cumulative GPA, include every graded course you've taken; for a semester GPA, include only that term's courses.
GPA calculation examples
A simple three-course term
An A in a 3-credit class (4.0 × 3 = 12), a B+ in a 4-credit class (3.3 × 4 = 13.2), and an A− in a 3-credit class (3.7 × 3 = 11.1) gives 36.3 quality points over 10 credits — a 3.63 GPA.
Why credit hours matter
An A in a 1-credit lab and a C in a 5-credit lecture isn't a B average. It's (4.0 × 1 + 2.0 × 5) ÷ 6 = 14 ÷ 6 = 2.33 — the heavier course dominates.
Cumulative GPA
If you've earned a 3.20 over 45 credits and then score a 3.70 across 15 new credits, your cumulative GPA is (144 + 55.5) ÷ 60 = 3.33.
The effect of one F
Four A's in 3-credit courses (48 points over 12 credits) plus one F in a 3-credit course (0 points) drops a 4.0 to 48 ÷ 15 = 3.20 — a full grade point of damage.
GPA grade scale (4.0)
Most US high schools and colleges use this standard unweighted 4.0 scale to convert letter grades and percentages into grade points.
| Letter | Percentage | GPA points |
|---|---|---|
| A+ | 97–100% | 4.0 |
| A | 93–96% | 4.0 |
| A− | 90–92% | 3.7 |
| B+ | 87–89% | 3.3 |
| B | 83–86% | 3.0 |
| B− | 80–82% | 2.7 |
| C+ | 77–79% | 2.3 |
| C | 73–76% | 2.0 |
| C− | 70–72% | 1.7 |
| D+ | 67–69% | 1.3 |
| D | 63–66% | 1.0 |
| D− | 60–62% | 0.7 |
| F | 0–59% | 0.0 |
Scales vary by school. Some cap A+ at 4.0 (shown here); others award 4.3. Honors and AP/IB courses are often weighted +0.5 or +1.0.
Weighted vs. unweighted GPA
An unweighted GPA caps every course at 4.0 regardless of difficulty. A weighted GPA gives harder courses a boost — typically +0.5 for honors and +1.0 for AP or IB — so an A in an AP class can be worth 5.0.
Colleges see both, and many recalculate your GPA using their own scale during admissions. Use unweighted GPA to compare yourself fairly across schools, and weighted GPA to reflect the rigor of your schedule.
Tips for raising your GPA
- Prioritize high-credit courses — they move your average the most.
- Retake a failed course if your school replaces the original grade.
- Front-load study time in classes where you're on a letter-grade boundary.
- Avoid withdrawals turning into F's by checking your school's W deadline.
FAQ
GPA Calculator — FAQ
Answers to the questions students ask most about this tool.
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