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CGPA Calculator

Combine each semester's GPA and credit load into one cumulative figure, and see what it converts to as a percentage.

Runs entirely in your browser

How to use the CGPA Calculator

  1. 1Add a row for each semester you have completed.
  2. 2Enter that semester's GPA and the number of credits it carried.
  3. 3The cumulative CGPA updates as you add rows.
  4. 4Use the projection box to see what a future semester would do to your CGPA.

How it works

A CGPA is a weighted average of semester GPAs, using each semester's credit load as its weight. Semesters where you took more credits therefore pull the cumulative figure harder — which is why a light semester with a perfect GPA moves the total less than students often expect.

The projection tool answers the practical question directly: given where you are now, what GPA does the next semester need for you to reach a target? It rearranges the same weighted-average formula to solve for the unknown term, and tells you plainly when the target is not reachable in one semester.

The percentage conversion uses the widely published CGPA × 9.5 formula. It is an approximation adopted by several boards, not a universal standard — your institution's own conversion table always takes precedence.

The formula

CGPA = Σ (semester GPA × semester credits) ÷ Σ semester credits
semester GPA
the grade point average for that term
semester credits
total credit hours attempted that term
Σ
the sum across every semester entered

Frequently asked questions

How do I convert CGPA to a percentage?
The common approximation is CGPA × 9.5, so a CGPA of 8.2 is about 77.9%. Check your institution's official table, because conversions vary.
Why did my CGPA barely move after a great semester?
Because it is weighted by credits and averaged over everything you have done. The more credits already behind you, the less any single term can shift the total.
Can I see what I need next semester to hit a target?
Yes. Enter your target CGPA and the credits you plan to take, and the tool works out the GPA that semester would need — or tells you if it is out of reach.

Related tools

GPA CalculatorAdd your courses and credits to get a weighted grade point average.Grade CalculatorTurn marks into a percentage and a letter grade.Percentage CalculatorWork out percentages, increases, decreases and 'what percent of'.Attendance CalculatorSee your attendance percentage and how many classes you still need.