Quick Answer
To calculate GPA, multiply each course's grade points by its credits, add these products, and divide by the total credits. For example, grades A (4.0), B+ (3.3), A− (3.7) and B (3.0) in courses of 3, 4, 4 and 3 credits give 49 ÷ 14 = 3.50. Choose the 4.0 or 10-point scale in the calculator, add your courses, and it also works out your new cumulative GPA.
What is a GPA Calculator?
A GPA Calculator (GPA कैलकुलेटर) works out your Grade Point Average — the single number that summarises your grades across all your courses. Each letter grade is converted into grade points, each course is weighted by its credits, and the weighted average is your GPA. In the United States the usual scale runs from 0 to 4.0; in India most universities following the UGC Choice Based Credit System use a 10-point scale and call the semester result SGPA and the running total CGPA.
Doing this by hand means a lot of multiplying and adding, and it is easy to make the classic mistake of averaging the grades without weighting by credits. This free calculator lets you add as many courses as you need, choose the 4.0 or 10-point scale, and instantly see your semester GPA, total credits, grade points and the effect on your cumulative GPA.
Key Features
- Two scales — US 4.0 with plus/minus grades, and the Indian UGC 10-point scale.
- Unlimited courses — add or remove rows; course names are optional.
- Credit weighting — the correct formula used by universities.
- Cumulative GPA — combine your previous GPA and credits with this semester.
- Totals — total credits and grade points, plus an approximate percentage.
- Half credits — credits such as 1.5 or 0.5 are accepted.
- Private — calculated in your browser; nothing is uploaded.
How to Calculate Your GPA — Step by Step
- Select your scale at the top: 4.0 (US) or 10-point (India, UGC).
- Enter each course. Type the credits and pick the grade. The calculator starts with four sample courses — replace them with your own.
- Add or remove rows with “Add course” and the × button.
- Read your semester GPA in the large display, with total credits and grade points below.
- Find your cumulative GPA by entering your previous cumulative GPA and the credits it covers.
- Copy or share the summary.
The GPA Formula with a Worked Example
GPA = Σ (credits × grade points) ÷ Σ credits
| Course | Credits | Grade | Points | Credits × points |
|---|---|---|---|---|
| English | 3 | A | 4.0 | 12.0 |
| Mathematics | 4 | B+ | 3.3 | 13.2 |
| Physics | 4 | A− | 3.7 | 14.8 |
| History | 3 | B | 3.0 | 9.0 |
| Total | 14 | 49.0 |
GPA = 49.0 ÷ 14 = 3.50. If you had simply averaged the four grade points (4.0 + 3.3 + 3.7 + 3.0) ÷ 4 you would get exactly 3.50 here too, but only by coincidence; with different credits the simple average is wrong.
10-point example (SGPA): grades A+ (9), A (8), O (10), B+ (7) and A (8) in courses of 4, 4, 3, 3 and 2 credits give (36 + 32 + 30 + 21 + 16) ÷ 16 = 135 ÷ 16 = 8.44.
Grade Point Tables
| US letter grade | Points (4.0) | UGC letter grade | Points (10) |
|---|---|---|---|
| A+ / A | 4.0 | O (Outstanding) | 10 |
| A− | 3.7 | A+ (Excellent) | 9 |
| B+ | 3.3 | A (Very good) | 8 |
| B | 3.0 | B+ (Good) | 7 |
| B− | 2.7 | B (Above average) | 6 |
| C+ | 2.3 | C (Average) | 5 |
| C / C− | 2.0 / 1.7 | P (Pass) | 4 |
| D+ / D / F | 1.3 / 1.0 / 0 | F (Fail) | 0 |
These are the most common tables, but institutions differ: some US colleges award 4.3 for an A+, some Indian universities use slightly different grade names, and some use relative grading. If your grade card lists different points, follow your institution.
Cumulative GPA Explained
Your cumulative GPA covers every semester so far. To update it, you cannot just average the old GPA and the new one — you have to weight by credits:
New CGPA = (Previous CGPA × previous credits + this semester's grade points) ÷ (previous credits + this semester's credits)
Example: a previous CGPA of 3.40 over 60 credits, plus this semester's 49 grade points over 14 credits, gives (204 + 49) ÷ 74 = 3.42. The more credits you have already completed, the less a single semester can move your CGPA — which is why early semesters matter so much.
How to Raise Your GPA
- Focus on high-credit courses — a better grade in a 4-credit course moves your GPA more than one in a 2-credit course.
- Use the calculator to plan — enter expected grades to see what you need in each course to reach a target.
- Avoid failures — an F counts as zero points with full credits and has a large effect.
- Check repeat policies — some institutions replace a grade when you retake a course.
- Act early — your first semesters have the biggest influence on CGPA.
Planning a Target GPA
The calculator is also a planning tool. Before exams, enter the grades you realistically expect, then change one course at a time to see which improvement lifts your GPA the most. For a cumulative target, enter your previous CGPA and credits and adjust this semester's grades until the cumulative result reaches your goal — you will quickly see whether the target is achievable this semester or needs two or three semesters of steady work.
Who Uses a GPA Calculator?
- College and university students tracking SGPA and CGPA each semester.
- Students applying for internships, placements or scholarships with GPA cut-offs.
- Applicants to US, Canadian or Australian universities reporting a 4.0 GPA.
- High-school students in systems that use weighted GPAs.
- Parents and mentors helping students plan their target grades.
- Teachers checking class results quickly.
Common Mistakes to Avoid
- Not weighting by credits — the most common error.
- Averaging semester GPAs — semesters with different credit loads must be weighted.
- Including pass/fail courses — these are normally excluded.
- Using the wrong scale — a 10-point SGPA and a 4.0 GPA are not interchangeable.
- Converting by dividing by 2.5 — turning a 10-point CGPA into a 4.0 GPA this way is only a rough guide; foreign universities and evaluation agencies use their own methods.
Weighted vs Unweighted GPA
In many US high schools you will hear about unweighted and weighted GPA. An unweighted GPA uses the plain 0–4.0 scale for every class. A weighted GPA adds extra points for harder classes — often +0.5 for honours and +1.0 for AP or IB courses — so it can go above 4.0. Colleges usually recalculate GPAs in their own way, so report what your transcript shows.
“Weighted” in that sense is different from credit weighting, which this calculator always applies: a 4-credit course counts twice as much as a 2-credit course. If your school adds honours or AP bonus points, you can still use the calculator by choosing the grade whose points match, or by calculating each class's bonus separately.
Tips and Troubleshooting
- “Add at least one course with credits” — every row needs a credit value greater than 0 to count.
- Want to exclude a course? Set its credits to 0 or remove the row.
- Switching scales keeps your rows and credits but maps grades to the new scale's list; re-check each grade after switching.
- Cumulative box shows nothing — enter both the previous GPA and the credits it covers.
- Different grade points on your card — choose the grade whose points match your institution's table.
Quick Glossary
- Credit: the weight of a course, usually tied to contact hours per week.
- Grade point: the numeric value of a letter grade.
- Grade points earned: credits × grade point for a course.
- SGPA: Semester Grade Point Average.
- CGPA: Cumulative Grade Point Average across semesters.
- CBCS: Choice Based Credit System, the UGC framework used by many Indian universities.
Why Use This GPA Calculator?
It supports both the American and Indian grading systems, handles any number of courses, applies the correct credit-weighted formula and shows the cumulative effect instantly. It is free, fast, private and works on any device — perfect for checking your result the moment grades come out or planning the grades you need for your target.
GPA Calculator — Key Facts
| Formula | GPA = Σ (credits × grade points) ÷ Σ credits |
|---|---|
| US 4.0 scale | A/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 |
| UGC 10-point scale | O 10, A+ 9, A 8, B+ 7, B 6, C 5, P 4, F 0 |
| Cumulative GPA | (Previous GPA × previous credits + new grade points) ÷ all credits |
| Courses | Add or remove as many as you need |
| Note | Grade-point tables vary by institution — check your own scale |
Frequently Asked Questions
How is GPA calculated?
Multiply the grade points for each course by the course credits, add the results and divide by the total number of credits. This gives more weight to courses with more credits.
What is a good GPA?
On the 4.0 scale, 3.0 (a B average) is generally considered good and 3.5 or higher very good. On the Indian 10-point scale, around 8 or above is generally seen as strong, but divisions such as first class or distinction are defined by each university.
What grade points does the 4.0 scale use?
Most US colleges use A+ and 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 and F = 0. Some schools give A+ 4.3 or skip plus/minus grades, so check your college's table.
What is the UGC 10-point grading scale?
Under the UGC Choice Based Credit System, letter grades map to O (Outstanding) 10, A+ (Excellent) 9, A (Very Good) 8, B+ (Good) 7, B (Above Average) 6, C (Average) 5, P (Pass) 4 and F (Fail) 0. Universities may adjust the details.
What is the difference between SGPA and CGPA?
SGPA is the GPA for one semester. CGPA is the credit-weighted average over all semesters so far. Use the cumulative section of the calculator to combine your previous CGPA with the current semester.
How do I calculate cumulative GPA?
Multiply your previous cumulative GPA by the credits it covers, add this semester's grade points, and divide by the total credits. For a 3.4 GPA over 60 credits plus 49 grade points from 14 new credits: (3.4 × 60 + 49) ÷ 74 = 3.42.
Can I average my semester GPAs?
Only if every semester has exactly the same number of credits. Otherwise you must weight each semester by its credits, which is what the cumulative calculation does.
Do failed courses count in GPA?
Usually yes — an F counts as 0 grade points with its full credits, which pulls the GPA down. Some institutions replace the grade when a course is repeated. Follow your institution's policy.
How do I convert my GPA to a percentage?
For the 10-point scale, the calculator shows SGPA × 9.5, the common Indian rule; use our CGPA to Percentage converter for other formulas. For the 4.0 scale it shows the GPA as a percent of the maximum, which is not an official conversion.
Should I include pass/fail courses?
Courses graded pass/fail or satisfactory/unsatisfactory are usually excluded from GPA. Leave them out, or set their credits to 0.
Are my grades saved?
No. Everything is calculated in your browser and nothing is uploaded. Reloading the page resets the course list.
Is the GPA Calculator free?
Yes. It is free, needs no sign-up and works on phones and computers.
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Semester and cumulative GPA on the 4.0 or 10-point scale — free and private.
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