Is 4H2 harder than 3H2+1H1?

Yes, in terms of workload - you study one additional full H2 subject. The difficulty depends on which subjects you choose. The real question is not "is it harder?" but "does the extra effort produce a better UAS?" Under 70RP, the answer is usually no unless your 4th H2 is strong.

Can I get into NUS Medicine with 3H2?

Yes. NUS Yong Loo Lin School of Medicine requires H2 Chemistry and one other H2 Science (Biology or Physics). There is no requirement for 4H2. A strong 3H2+1H1 result (e.g., AAA/A with H2 Chem + H2 Bio + H2 Maths) meets the prerequisites.

How does the 4th H2 grading work under 70RP?

Your weakest H2 is converted to H1-equivalent points. The conversion uses the standard H1 grade-point scale (A = 10, B = 8.75, etc.) applied to your H2 letter grade. If this converted score is higher than what you would have scored in a standalone H1 subject, you benefit. If not, you would have been better off with 3H2+1H1.

Do overseas universities care about 4H2?

Most UK and US universities do not distinguish between 3H2 and 4H2 - they look at your best 3 H2 grades. Oxbridge and top US schools may note the breadth, but they weight interview/essay/portfolio more heavily. Strong grades in 3H2 beat mediocre grades in 4H2 for international applications.

My JC forces 4H2 in JC1. What should I do?

Start with 4H2 as required. Use JC1 as a trial period - monitor your grades across all four subjects. If one subject is consistently weak and you do not need it for your target university course, plan to drop at the end of JC1 or start of JC2. Treat the mandatory 4H2 period as data collection, not a permanent commitment. ---

Study guide21 Mar 2026, 00:00 Z

4H2 vs 3H2+1H1: Which Is Better? (2026 Guide)

In one line

The 70RP system changed the maths: a 4th H2 does not increase your maximum UAS.

Key points

It still helps if (a) you need specific H2 prerequisites for multiple courses, (b) you want scholarship breadth, or (c) your weakest H2 is strong enough to beat your H1 alternative.
For most students, investing that time into scoring higher in 3 H2s and GP is more effective.

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Reviewed by

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Read in layers

1 second

Read the summary above.

10 seconds

Scan the first few sections below.

100 seconds

Jump into the section that matches your decision.

Quick decision map
Concrete example: the workload trade-off
How the 70RP UAS system changes the 4H2 decision
When 4H2 makes sense

Q: Should I take 4 H2 or 3H2+1H1 in JC?
A: Under the 2026 scoring system (70RP), your University Admission Score uses only your 3 best H2 + H1 GP. A 4th H2 no longer directly boosts UAS - it acts as insurance, not a bonus. This guide covers when 4H2 is worth it and when 3H2+1H1 is the smarter play.

TL;DR
The 70RP system changed the maths: a 4th H2 does not increase your maximum UAS. It still helps if (a) you need specific H2 prerequisites for multiple courses, (b) you want scholarship breadth, or (c) your weakest H2 is strong enough to beat your H1 alternative. For most students, investing that time into scoring higher in 3 H2s and GP is more effective.

If you have...	Read this first
1 second	Under 70RP, 4H2 is insurance, not a higher maximum score.
10 seconds	Check target course prerequisites, three core H2s, H1 GP, 4th H2 conversion, scholarship value, workload, CCA load, GP weakness, and drop timing.
100 seconds	The better choice is the one that gives the highest sustainable score and keeps necessary courses open. Prestige alone is a weak reason to keep 4H2.
Concrete example	If engineering only needs H2 Maths and Physics, a struggling fourth H2 may be less useful than more GP and core-H2 time.
Best next step	List required H2 subjects for your top courses before deciding whether 4H2 is worth the load.

Quick decision map

If your situation is...

Better default

Sources

MOE - A-Level curriculum and subject syllabuses

Drop candidate	Impact	Forum consensus
H2 Economics → H1	Low impact. H1 Econs covers roughly 60% of H2 content. Most university courses do not require H2 Econs specifically.	Safest drop for most students.
H2 Biology → H1	Moderate. Locks you out of some life science courses. Medicine still only requires H2 Chemistry + one H2 Science.	Safe if you are not targeting Bio-specific degrees.
H2 Physics → H1	High. Locks you out of most engineering and physical science courses.	Risky unless you are certain about non-STEM pathways.
H2 Chemistry → H1	Very high. Locks you out of medicine, pharmacy, dentistry, and chemical engineering.	Not recommended unless you have no interest in these fields.
H2 Maths → H1	Very high. Locks you out of engineering, computing, data science, and quantitative finance.	Almost never recommended.

4H2 vs 3H2+1H1: Which Is Better? (2026 Guide)

Quick decision map

Sources

Concrete example: the workload trade-off

How the 70RP UAS system changes the 4H2 decision

When 4H2 makes sense

When 3H2+1H1 is the smarter choice

Subject-by-subject: which H2 is easiest to drop?

The workload difference

When to drop: timing matters

FAQ

Further reading

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