School MattersL1R4 Calculator: JC & MI Admission from 2028
Calculate the 2028 JC and MI L1R4 aggregate with five distinct G3 subjects. See the selected subjects, gross score, bonus points and a worked example.
Worked example: gross 12, net 10
English A2 (2) + Combined Humanities B3 (3) + Mathematics A2 (2) + Chemistry B3 (3) + Mother Tongue A2 (2) = gross 12. With 2 confirmed regular bonus points, net = 12 − 2 = 10.
The JC gross threshold is 16; MI is 20. Subject-grade and posting requirements still apply. Historical L1R5 cut-offs cannot be treated as future L1R4 cut-offs.
L1R4 questions
How is L1R4 calculated?
For JC and MI admission from 2028, use five distinct G3 subjects: English or Higher Mother Tongue, one Humanities subject, one Mathematics or Science subject, another Humanities/Mathematics/Science subject, and another eligible subject. Higher Mother Tongue and Mother Tongue of the same language cannot both count.
What is the difference between gross and net L1R4?
Gross is the sum of the five grades. Net deducts bonus points you qualify for: up to three regular bonus points, with two additional points for selection into a qualifying Language Elective Programme. The gross threshold is 16 for JC and 20 for MI; bonus points do not help meet the gross threshold.
Is this a Polytechnic score calculator too?
No. Polytechnics use ELR2B2 with course-specific subject requirements. JC admission in 2026 and 2027 still uses L1R5. This page calculates the JC and MI L1R4 aggregate from the 2028 intake.
Does a qualifying aggregate guarantee admission?
No. This tool calculates subject combinations and scores for the G3 grades entered. It does not determine every subject-grade requirement, exemption or conditional-admission rule. Check current MOE requirements and school courses. Historical L1R5 cut-offs cannot be treated as future L1R4 cut-offs.