The number on its own was never the useful part. A CGPA of 8.0 converts to 76.0%, 72.5% or 80.0% depending on which rule you apply, which is why three calculators can give you three answers and all be right. Every result on this site now prints the substitution, the name of the rule and a note on where the rule came from, so you can quote both.
We went to the university's own grading documentation expecting a conversion formula and found a table of five reference points instead. A straight line, (DGPA - 0.75) x 10, passes through all five exactly, which is why so many sites quote it as a formula. Two things are worth knowing. First, that formula is somebody's reading of the table, not the university's wording. Second, the table is labelled DGPA, not CGPA, and almost every site republishing it silently relabels it. The MAKAUT page now shows the published rows and our reading side by side, so you can check the fit yourself.
Turning marks out of a total into a percentage and turning a grade point average into a percentage are different calculations - the first has no grade scale in it at all. Putting both behind one input field would have made both worse, so they are now two pages with two calculators. The SGPA calculator hands its result straight to the CGPA converter, so you do not retype a number you just worked out.
We list seven universities. For six of them we have not located a document from the university stating how a CGPA converts to a percentage - so those pages do not print a formula. Other sites publish figures for these universities; we cannot say where those figures came from, so we are not repeating them. Each page says so plainly and offers the general rule with the caveat attached. If you have a link to a published rule we are missing, send it - a source is the only thing that gets a formula onto this site.
Every change above is in this converter. Enter 8.0 and switch the rule to watch the answer move between 76.0%, 72.5% and 80.0%.
Between 0 and 10
Not sure which one applies? See where each rule comes from.
A CGPA of 10 gives 95%, not 100%. That is not a rounding error. The 9.5 multiplier was derived from the average marks of past top scorers, which sat at about 95% — so the top grade point maps to 95%. The rule has no way to produce 100%.
This is the arithmetic of the rule you selected. Whether a particular admissions office accepts it is their decision, not ours — quote the rule your university published, with its date.
