Your Grade Point Average (GPA) is the single number that distributes how well you are doing across every course you have taken, and colleges, grad schools, and many employers weigh it heavily. This free GPA calculator computes a weighted GPA on the standard unweighted 4.0 scale: instead of simply averaging your letter grades, it multiplies each grade by its credit hours, so a hard four-credit lecture pulls your average more than a one-credit seminar.
Enter the grade points and credit hours for up to four courses, and your semester GPA updates instantly. You can also string several semesters together to see your cumulative GPA, and you will immediately see how one strong or weak course moves the needle.
How to Use
- The form provides up to four course rows. Fill in the ones you need; set unused rows' credits to 0.
- For each class, enter the grade points you earned. Use the standard 4.0 scale: A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, B- = 2.7, C+ = 2.3, C = 2.0, D = 1.0, F = 0.0.
- Enter the credit hours the course is worth. A typical lecture is 3 or 4 credits; a lab, seminar, or physical-education class may be 1.
- Leave unused courses at grade 0 and credits 0 — they contribute nothing to the total.
- This calculator uses the standard unweighted 4.0 scale. It does not add extra points for honors or AP classes; weighted scales vary by school, so check your handbook.
- Read the result card: your Weighted GPA, Total Credit Hours, and Total Grade Points.
The math is deliberately transparent. For each course you contribute grade points × credit hours. Sum those products into total grade points, sum the credit hours, then divide. A course worth zero credits — an audit or pass-fail class — is ignored in the division, so it neither helps nor hurts you.
The Weighted GPA Formula
Most student transcripts use the credit-weighted average, identical to the formula taught by university registrars and used in open-source GPA tools:
GPA = Σ (grade points[grade] × credit hours) / Σ credit hours
Where grade points follow the 4.0 scale. Worked example: three courses — an A in a 3-credit class (4.0 × 3 = 12.0), a B in a 4-credit class (3.0 × 4 = 12.0), and a C in a 3-credit class (2.0 × 3 = 6.0). Total grade points = 30.0; total credits = 10; GPA = 30.0 ÷ 10 = 3.0. Notice that unweighting — averaging the letters 4.0, 3.0, and 2.0 — would also give 3.0 here, but the weighting matters the moment your credits are uneven. If the B had been a 1-credit seminar instead of 4, the same grades would produce a noticeably higher average because the heavier A dominates.
On a 0-to-100 percentage scale, the letter bands are roughly: A = 90–100%, B = 80–89%, C = 70–79%, D = 60–69%, and F = below 60%. A 3.5 GPA, for instance, usually sits in the top 15–20% of a graduating class, while a 3.8 and above is commonly required for Latin honors and competitive graduate programs.
How Letter Grades Map to Points
| Letter | Points | Typical % band |
|---|---|---|
| A | 4.0 | 93–100% |
| A- | 3.7 | 90–92% |
| B+ | 3.3 | 87–89% |
| B | 3.0 | 83–86% |
| B- | 2.7 | 80–82% |
| C+ | 2.3 | 77–79% |
| C | 2.0 | 73–76% |
| D | 1.0 | 60–69% |
| F | 0.0 | below 60% |
Some colleges drop the plus/minus tiers and use only whole letters (A = 4, B = 3, C = 2, D = 1, F = 0). If your school does that, treat A- as A and B+ as B when entering grades.
Examples
Example 1 — A normal semester. A student takes four classes: A in Calculus (4 credits), B+ in Chemistry (4 credits), B in English (3 credits), and A- in History (3 credits). Grade points = 4.0×4 + 3.3×4 + 3.0×3 + 3.7×3 = 16.0 + 13.2 + 9.0 + 11.1 = 49.3. Total credits = 14. GPA = 49.3 ÷ 14 ≈ 3.52, equivalent to a solid B+ and above the common Cum Laude threshold of about 3.5.
Example 2 — A light pass-fail class. A student earns an A in a 3-credit lecture but also passes a 0-credit audit workshop. The workshop contributes 0 to both the numerator and the denominator, so the GPA stays at 4.0 rather than being diluted. Entering 0 credit hours is safe; the calculator simply skips it.
Example 3 — The heavy course matters most. Compare two transcripts with the same letters: A, B, C. If the A carries 4 credits and the C carries 1, the weighted GPA pulls high; if the C carries 4 credits and the A carries 1, it drags down. That is exactly why admissions offices ask for both GPA and credit hours together, rather than trusting a flat letter average.
FAQ
How is a weighted GPA different from an unweighted GPA?
An unweighted GPA averages your letter grades on a 4.0 scale regardless of course difficulty. A weighted GPA accounts for credit hours (and, at many high schools, extra points for honors or AP classes). This calculator uses credit weighting on the standard 4.0 scale — harder, more expensive courses count more toward your average.
What is a good GPA on the 4.0 scale?
A 3.0 is a B average and the minimum for many graduate programs. A 3.5 (about 85%) is strong and typically qualifies for Cum Laude, while a 3.8 and above often earns Magna or Summa Cum Laude. Competition for top schools usually starts around 3.7.
How do I calculate my cumulative GPA across semesters?
Compute each term's grade points and credit hours separately, then add them together: cumulative GPA = (sum of all grade points) ÷ (sum of all credit hours). Do not average your semester GPAs, because that gives each term equal weight even when one term had twice the credits.
Do pass-fail or audit classes count?
Usually no. A class worth 0 credits, or graded only pass/fail, contributes no grade points and no credits, so it is left out of the division. This calculator treats a 0-credit course as neutral — it neither raises nor lowers your GPA.
How much can one course change my GPA?
It depends on its credit weight. A 4-credit course can move a 15-credit semester GPA by roughly 0.25–0.30 points per letter grade, while a 1-credit seminar barely moves it. Enter your current courses, then raise or lower one grade to see the effect immediately.
Why does my calculated GPA differ from my transcript?
Small differences usually come from the plus/minus scale (some schools skip it), repeated courses that replace rather than average, and rounding. If your school rounds to two decimals or drops certain grades for renewal, mirror those rules when entering grades.
Disclaimer
This GPA calculator is provided for informational purposes only and does not represent an official academic transcript, nor does it constitute academic, admissions, or financial advice. Results are estimates based on the letter grades and credit hours you enter and the standard unweighted 4.0 scale. Actual GPA policies, plus/minus mappings, honors cutoffs, and repeated-course rules vary by high school, college, and university. Always confirm your official GPA and standing directly with your registrar or academic advisor.