L1R5 Calculator (2026): Calculate Your Best O Level Score
Calculate your lowest O Level L1R5 score and find out which potential junior colleges (JCs) you can join.
Which Junior College Are You Eligible For, Based on JC Cut-Off Points?
Every year, the JC cut-off points (COPs) are released by the Ministry of Education (MOE) in late January to early February, around the same time as the Joint Admissions Exercise (JAE) postings. While COPs can fluctuate due to a wide variety of factors, general admission criteria for JCs require that your L1R5 score must not exceed 20 marks, and that you also meet grade requirements for specific subjects.
For Highly Competitive Top JCs
If you are aiming for top JCs, such as Raffles Institution or Hwa Chong Institution, you’re encouraged to take a third language or higher mother tongue language (HMTL), as well as achieve an excellent Co-Curricular (CCA) grade, on top of attaining strong academic results.
Previous years’ COPs for these colleges have remained extremely competitive, at a maximum of 3 for Science programmes and 5 for Arts programmes.
For a Wider Range of JC Options
For admission to a broader range of JCs, it is important to plan ahead to ensure you meet the criteria for your desired college and programme. Calculate your projected L1R5 score and compare it against each college’s past-year COPs to help you make a more informed decision.
Additionally, you can strengthen your eligibility by making strategic academic choices. For instance, if you are aiming for the Arts stream, you can select relevant subjects and work towards earning bonus points. Even 1 or 2 points from a Higher Mother Tongue Language (HMTL) or Co-Curricular activities (CCA) can drastically improve your chances of gaining admission into your JC of choice.
How the O Level Grading System Works
The O Level grading system assigns a letter grade to each subject based on the marks a student received during their exams. Passing grades range from A1 to C6, and failing results range from D7 to F9.
These letter grades can be used in an aggregate scoring system for various post-secondary routes, such as the L1R5 for JCs, the L1R4 for Millennia Institute (MI), or the ELR2B2 for polytechnic courses. Here is a quick breakdown of the L1R5 components2:
- L1: English or Higher Mother Tongue Language
- R1: One best-scoring Humanities subject
- R2: One best-scoring Mathematics or Science subject
- R3: One best-scoring Humanities, Science, or Math subject
- R4: Any approved best-scoring subject
- R5: Any approved best-scoring subject
The next step in obtaining your final L1R5 score is to add up the numbers attached to each subject’s letter grade, for instance, the 2 in A2 or the 4 in B4. Students need to take into account that the same language subject may not be used twice in the same aggregate score computation3.
For example, if you take Chinese as your Higher Mother Tongue (HMTL) and Mother Tongue Language (MTL) in your O Levels, you cannot use both your HMTL and MTL grades in the same L1R5 score.
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FAQs: L1R5 Aggregate Score Calculator
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