How is the percentage calculated for my Singapore diploma which is an 8 plus 6 year program?
Singapore institutions grade your diploma on a cumulative GPA scale, usually out of 4.0, not a raw percentage. Your cGPA weighs each module grade against its credit units. To estimate a percentage, multiply your cGPA by 25, so a 3.0 GPA becomes roughly 75 percent.
Your Singapore diploma, even across an 8 plus 6 year structure, is not scored as a raw overall percentage, but as a cumulative Grade Point Average on a 4.0 scale. Your institution weighs each module's grade point against its credit units across your completed semesters to arrive at this cGPA. If an overseas application needs a percentage, you will usually have to convert it yourself using a standard formula.
Grade Point to Percentage Reference
| Letter Grade | Grade Point | Approximate Percentage Range |
|---|---|---|
| A / Distinction | 4.0 | 80% to 100% |
| B+ | 3.5 | 75% to 79% |
| B | 3.0 | 70% to 74% |
| C+ | 2.5 | 65% to 69% |
| C | 2.0 | 60% to 64% |
| D+ | 1.5 | 55% to 59% |
| D | 1.0 | 50% to 54% |
| F (Fail) | 0.0 | Below 50% |
How to Convert Your cGPA
The most common approach is a linear scale: Percentage equals your cGPA multiplied by 25, since the scale tops out at 4.0. For example, a cGPA of 3.0 gives you roughly 75%. Some evaluators, such as WES, use an alternate formula of (cGPA multiplied by 10) plus 50, so it is worth checking which formula the receiving university or organization expects before you quote a number.
My Advice
Before you list a percentage on any application, go to your institution's academic office or student portal and ask for an official conversion statement for your specific diploma structure, since policies differ between polytechnics and institutions. If the receiving university accepts a raw cGPA instead, submit that directly rather than converting it yourself.
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