How this converter works
The tool uses an approximate historical comparison table to help parents and former students understand how an old PSLE T-score might compare with today's AL scoring scale.
Why is it only an estimate?
The old PSLE T-score was calculated relative to the performance of the cohort. The current Achievement Level system uses scoring bands for each subject, with the four subject ALs added together for the final PSLE Score. Because the systems measure results differently, an exact conversion is not possible.
What happens below T-score 152?
Scores below 152 are displayed as AL26+. We intentionally do not assign exact T-score bands to AL26 through AL32 because there is not enough reliable information to justify that level of precision.
What do the Posting Groups mean?
The result also gives a broad current Posting Group reference. Posting Groups are part of today's secondary-school posting framework and should not be treated as a direct replacement for the former Express, Normal (Academic) and Normal (Technical) streams.