CGPA Calculator

Multiply each semester SGPA by the credits that semester carried, add the results, then divide by the total credits. That is the whole method.

Two semesters make it concrete. An SGPA of 8.0 across 20 credits contributes 160 points. An SGPA of 9.0 across 24 credits contributes 216. Together that is 376 points over 44 credits, and 376 divided by 44 is a CGPA of 8.55.

Notice what the credits did there. The stronger semester was also the bigger one, so it pulled the cumulative figure above the midpoint of the two results. Had the 9.0 come in a light 16-credit semester instead, the same two SGPAs would have produced a lower CGPA. The grades alone never tell you the answer.

Only when every semester carries identical credits. Otherwise the plain average is a different number, and it is the wrong one.

In the example above, averaging 8.0 and 9.0 gives 8.50, while the credit-weighted figure is 8.55. Five hundredths sounds trivial until you are sitting on a 7.49 against a recruiter cut-off of 7.5. Over six or eight semesters of uneven size the gap grows, and it does not reliably favour you: heavy weak semesters push the true figure below the average you were quietly hoping for.

This is the single most common error in homemade spreadsheets, so the tool prints both numbers side by side. When your semesters happen to be equal in credits it says so plainly, and the two figures match. When they are not, it shows you the straight average, the weighted result, and the fact that the second one is what your transcript reports.

This is the question most people actually came for, and it has a clean answer. Your finished credits are already fixed, so the only unknown is the average across the credits still to come.

Carry on with the same example: a CGPA of 8.55 over 44 credits, with 20 credits left and a target of 8.75. Finishing at 8.75 across 64 total credits means 560 points in all. You already hold 376, so the remaining 20 credits have to deliver 184, which is an average of 9.20. That is demanding but possible.

The same arithmetic sets the boundaries of what is still open to you. Score a perfect 10 across those 20 credits and you finish at 9.00; score zero and you land at 5.88. Every outcome you have left lives between those two numbers, and the planner prints all three so you can judge a target before committing to it.

It will also tell you when the answer is no. If a target needs more than the scale allows, it says the target is out of reach and shows the best figure still available rather than displaying an impossible average as though you could go and earn it. If your target is already locked in whatever happens next, it says that too. A planner that only ever returns encouraging numbers is not much use in the week you are choosing electives.

There is no single national conversion. You apply the rule your own university prints, and three are in wide use.

One multiplies your CGPA by 9.5, a convention that began with a school board and spread well beyond it. Another multiplies by 10. A third subtracts 0.75 and then multiplies by 10, which some handbooks word as multiply by 10 and then subtract 7.5; those are two ways of writing the same sum. A CGPA of 8.0 therefore becomes 76, 80 or 72.5 percent purely according to which rule you were handed.

A seven and a half point spread is wide enough to change how an application is read, so this tool shows the formula next to whichever answer it gives and leaves the choice to you. Two things are worth knowing. Conversion charts published online frequently disagree with each other about the very same university, so a chart from a search result is not evidence of anything. And for an employer, a scholarship body or an overseas admissions office, the number that counts is the one on an official conversion certificate from your examination office, not one from any calculator, this one included.

Cumulative averages get complicated the moment a paper is failed, and universities resolve it in genuinely different ways rather than in variations on one standard.

Some replace the original grade once the paper is cleared, so the backlog leaves no trace. Some keep the first attempt in the cumulative figure permanently. Some record both attempts and count the better one. Some withhold the credits entirely until you pass, which changes the divisor rather than the numerator. These produce visibly different CGPAs from identical work, and no calculator can know which one applies to you.

The practical approach is to enter each semester exactly as your transcript reports it, and if a retake is involved, work it out both ways and take the question to your examination office. The difference between the two results is precisely what the answer is worth to you.

If you are still assembling the semester figures themselves, the SGPA calculator builds each one from your course credits and grades. Where results come as marks rather than grade points, use the marks percentage calculator, which copes with subjects of different maximums. And for the requirement that decides whether you sit the exam at all, there is the attendance calculator. The full set is on the calculators hub.