How to Calculate PSLE Score Under the AL System: A Simple Step-by-Step Guide

Quick Answer: To calculate a PSLE score under the AL system, find your child's raw mark for each of the four subjects, convert each mark to its Achievement Level (AL1 to AL8) using the standard banding table, and add the four AL numbers together. For Foundation subjects, convert the Foundation AL grade (A, B, or C) to its standard AL equivalent (AL6, AL7, or AL8). The total — between 4 and 32 — is your child's PSLE score. That is it. No formula, no cohort comparison, no statistical transformation.

Under the old T-score, calculating a PSLE score required a statistical formula involving cohort means and standard deviations — parents could not meaningfully replicate it on their own. The AL system changed that: every mark range maps to a known AL grade, and the PSLE total is a simple sum. This article shows you exactly how to calculate it, with worked examples for standard subjects, Foundation subjects, and mixed combinations.

The Standard AL Conversion Table

Worked Example 1: Four Standard Subjects

Child's estimated PSLE marks: English 82, Math 78, Science 88, Mother Tongue 70.

• English 82 → AL3
• Math 78 → AL4
• Science 88 → AL2
• Mother Tongue 70 → AL5

PSLE Total = 3 + 4 + 2 + 5 = 14. This places the child in Posting Group 3 with most subjects at G3 level.

Worked Example 2: Two Standard + Two Foundation Subjects

Child's marks: Standard English 68, Standard Math 72, Foundation Science 82, Foundation MTL 55.

• Standard English 68 → AL5
• Standard Math 72 → AL5
• Foundation Science 82 → Foundation AL A → maps to AL6
• Foundation MTL 55 → Foundation AL B → maps to AL7

PSLE Total = 5 + 5 + 6 + 7 = 23. This places the child in Posting Group 2.

How the Total Maps to Posting Groups

Frequently Asked Questions

How do I estimate my child's PSLE score before the actual exam?

Use your child's school exam results — particularly the SA1 and Prelim results in Primary 6 — as the closest available proxy. Convert each subject's mark to its AL band using the standard table and sum the four AL scores. School exams may be slightly harder or easier than the actual PSLE, but the banding gives a reliable estimate. The estimate is most useful for shortlisting secondary schools, not for making final decisions.

What if my child's mark is exactly on a band boundary?

A mark of 75 is AL4. A mark of 74 is AL5. The boundary is strict — there is no rounding or leniency. This is why each mark within a band matters for the child's own sense of progress but does not change the AL score until the band boundary is crossed. A child moving from 65 to 74 has improved significantly but remains at AL5; the move to AL4 happens only when the mark crosses 75.

How can English tuition help improve the PSLE AL score?

English is one of four subjects that contribute equally to the PSLE total. Improving English by one AL band (e.g. AL5 to AL4) directly lowers the PSLE total by one point. For students whose English score is the weakest of the four, targeted small-group tuition that addresses the specific components — writing, comprehension, or oral — can move the AL band more efficiently than general revision. iWorld Learning offers small-group PSLE English classes at Tanjong Pagar MRT and Somerset. Book a free assessment.

Summary

Calculating the PSLE score under the AL system is simple: convert each subject's raw mark to its AL band, add the four AL numbers, and the total determines the posting group. Foundation subjects contribute AL6, AL7, or AL8 regardless of the Foundation mark. The simplicity is intentional — parents can estimate their child's score from school exam results and use that estimate to shortlist secondary schools realistically.

If English is the subject keeping your child's AL band higher than it could be, iWorld Learning's small-group PSLE English programme at Tanjong Pagar MRT and Somerset can help. Book a free placement assessment.