GPA Calculator
Your GPA is a credit-weighted average, not a simple average of percentages. This calculator uses the same quality-points method your school’s registrar uses — enter each course’s letter grade and credit hours, and it computes your GPA live, with the full math shown.
- No sign-up required
- Shows the full calculation
- Supports cumulative GPA
- Free, unlimited use
GPA Calculator
Add each course with its letter grade and credit hours. Your GPA updates as you type.
This gives an unofficial estimate using the standard 4.0 plus/minus scale. Your school’s exact scale, rounding rules, and repeat-course policy may differ — check your transcript for the official number.
How to Calculate GPA
- Grade Points — the numeric value assigned to your letter grade (A = 4.0, B = 3.0, and so on)
- Quality Points — Grade Points × Credit Hours for that course
- Credit Hours — how many credits the course is worth
A 4-credit course pulls more weight in your GPA than a 1-credit elective, because it contributes more quality points either way — up or down. This is why two students with identical letter grades can end up with different GPAs if their credit loads differ.
| Course | Credits | Grade | Grade Points | Quality Points |
|---|---|---|---|---|
| English 101 | 3 | A | 4.0 | 12.0 |
| College Algebra | 4 | B+ | 3.3 | 13.2 |
| Intro Psychology | 3 | A- | 3.7 | 11.1 |
| Biology Lab | 2 | C+ | 2.3 | 4.6 |
| Total | 12 | — | — | 40.9 |
GPA Scale (4.0)
Here's the standard U.S. scale most schools use as a baseline. Some schools adjust the exact cutoffs or use a 4.33 scale where A+ counts for more than a straight A, so treat this as the common convention — check your school's catalog for its exact scale.
| Letter Grade | Percentage | GPA (4.0 Scale) |
|---|---|---|
| A | 93–100% | 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 | 65–66% | 1.0 |
| D- | 60–64% | 0.7 |
| F | Below 60% | 0.0 |
Weighted vs. Unweighted GPA
An unweighted GPA uses the standard 4.0 scale for every class, regardless of difficulty. A weighted GPA gives extra credit for harder courses — Honors, AP, IB, or dual-enrollment classes are typically worth more than a 4.0 for the same letter grade (commonly a full point extra for AP/IB, a half point for Honors, though this varies by school). This is why a student can have a weighted GPA above 4.0 while their unweighted GPA sits below it — both numbers are correct, they measure different things.
Why This Might Not Match Your Official Transcript
If the number here doesn't match your school portal, it's almost always one of these:
- Pass/Fail courses — a Pass usually doesn't affect GPA; a Fail typically counts as 0.0
- Repeated courses — some schools replace the old grade in your GPA; others average both attempts
- Withdrawals — a standard W generally doesn't touch GPA; a WF sometimes counts as an F
- Transfer credits — usually count toward credits but not toward institutional GPA
- Rounding — some schools round to the nearest tenth, others don't
If your number still looks off, pull your official quality points and GPA hours straight from your transcript rather than reconstructing them by hand.
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Frequently Asked Questions
How do I calculate my GPA?
Multiply each course's grade points by its credit hours to get quality points, add up the quality points across all courses, then divide by the total credit hours. That result is your GPA.
What is a quality point?
A quality point is your grade points for a course multiplied by its credit hours. For example, a B (3.0) in a 4-credit class equals 12 quality points. Adding up all quality points and dividing by total credits gives you your GPA.
What is the difference between semester GPA and cumulative GPA?
Semester GPA reflects one term only. Cumulative GPA includes every completed semester and is the number colleges and scholarship committees typically look at.
Does this calculator work for weighted GPA?
This calculator uses the standard unweighted 4.0 scale. If your school weights Honors, AP, or IB courses higher, you will need to enter the weighted grade point value for those courses manually, since weighting policies vary by school.
What GPA scale does this use?
The standard U.S. plus/minus scale: 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 = 0.0. Some schools use a simpler scale without plus/minus grades.
Can I calculate my cumulative GPA with this tool?
Yes. Check the box for including a previous GPA, then enter your previous GPA and previous credit hours alongside your current courses to see your combined cumulative GPA.
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Add your courses above and see your semester and cumulative GPA instantly, with the full math shown.
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