This GPA calculator allows you to add your module grades information and calculate your final GPA. It currently supports all Singapore public schools that uses the GPA system, which are the ITE, all 5 Polytechnics (they are lump as Polytechnic since their GPA system are almost the same), and the 6 autonomous Universities (NUS, NTU, SMU, SUTD, SIT, and SUSS). All information with regards to the grading system in each institution were found by online research.

Select the institution you are based on, and enter your module name (or leave it empty if you're lazy, they are not needed for the calculation), the module credit, and the grade obtained (or predicted), and then click on calculate GPA.

And one more thing! Whatever data you have entered above will be saved if you reload or close the tab/browser. This is because I have implemented persistent storage which means whatever you have entered will be saved by your browser unless you clear them.