IB vs A-Levels in Singapore: Key Differences for International School Students
Last updated December 2025
One of the most important decisions to make as a student or parent is choosing the right curriculum and pathway for your child.
Designed for students aged 16 to 18, both the IB and A-Levels are internationally recognised qualifications that can help with entrance to university – be it in Singapore or overseas.
Both qualifications continue to grow in popularity worldwide. In 2024, approximately 193,000 students completed the IB Diploma Programme across 160 countries, achieving a global average score of 30.32 points and an 80% pass rate (Source: IBO Statistical Bulletin, May 2024). Meanwhile, Cambridge International recorded its largest exam series ever, with over 316,000 students taking AS and A-Level examinations across 128 countries (Source: Cambridge International, August 2024).
What Is The IB?
Founded in 1968, the IB (or International Baccalaureate) provides high-quality and challenging educational programs at every stage of the child’s academic journey while offering a holistic educational environment.
It is known for its high academic standards and mission to develop global citizens of the 21st century, with a curriculum that places great emphasis on cultivating creativity and imagination.
IB schools in Singapore offer there are different levels of programs:
- IB Primary Years Programme (for students from Grades 1 – 5)
- IB Middle Years Programme (for students from Grades 6 – 10)
- IB Diploma (for students from Grades 11 – 12)
What Are The A-Levels?
Commonly taken by students in the UK, the A-Levels (also known as Advanced Levels) are qualifications in particular subjects that are usually the final academic courses taken before university.
A-Levels are assessed using a set of examinations that take place after two years of studying. Students typically choose a smaller number of subjects (usually 3-4) to study in-depth over two years. A-Levels are known for their specialisation and depth in chosen subjects.
Although they are a UK-based qualification, the A-Levels are widely accepted worldwide.
IB vs A-Levels: 4 differences
| Factor | IB Diploma Programme | A-Levels |
|---|---|---|
| Duration | 2 years (Grades 11-12) | 2 years (typically ages 16-18) |
| Number of subjects | 6 subjects + Core components | 3-4 subjects |
| Core requirements | TOK, Extended Essay, CAS | None (subject-focused) |
| Assessment style | Coursework (20-30%) + Final exams | Primarily final examinations |
| Maximum score | 45 points | A* to E grades per subject |
| Global reach (2024) | 160+ countries, 6,000+ schools | 128 countries, 3,100+ schools |
| Learning approach | Breadth + interdisciplinary | Depth + specialisation |
| Best suited for | Students seeking holistic education | Students with clear subject focus |
1. Curriculum Structure & Content
Although both the IB and A-Levels take place over two years, the A-Levels largely focuses on 3 or 4 subjects while the IB is a 6-subject course that also includes a deep dive into the Theory of Knowledge (TOK), Extended Essay (EE) as well as Creativity, Activity, Service (CAS).
These additional components develop leadership, critical thinking and research skills that prepare students for university and beyond. Many parents ask whether IB is easier than A-Levels, which depends on your child’s learning style and academic strengths.
While the A-Levels might not offer the same level of holistic development, there is some flexibility when it comes to subject selection, as well as two exam dates in the year that students can choose from based on their schedule.
The curriculum is more streamlined and subject-specific, providing in-depth knowledge in chosen areas.
2. Assessment Methods & Grading System
Both the IB and A-Levels have final examinations that students have to sit for. However, the key difference is that these final exams account for the entire grade that appears on the graduates’ certificates.
For A-Levels, the final exam is the be-all and end-all for students, and their academic performance throughout the school year – however good or bad – will have no influence on their final grade.
On the other hand, the IB requires students to be consistent in internal assessments and extended essays to get a decent final mark. The grading system is on a scale of 1 to 7, with 7 being the highest.
Besides the final exams, the IB has other coursework components that play a part in influencing the student’s overall grade. These coursework usually require students to do independent research and take many months to complete. This helps to promote continuous engagement and application of knowledge.
3. Skills & Learning Approach
If you choose to pursue the A-Levels, you’ll gain an in-depth understanding of the various subjects you have chosen.
While depth of knowledge is emphasised, the curriculum may not provide the same breadth of skills and interdisciplinary thinking as the IB.
The IB places more emphasis on understanding a broader range of subjects and works on holistic development as well as building critical thinking and research skills.
For example, The Theory of Knowledge (TOK) component fosters reflection on the nature of knowledge, promoting intellectual inquiry.
4. University Admissions And Global Recognition
Depending on which country you choose to pursue your further studies after graduation, both the IB and A-Levels are widely accepted and can help you secure your spot in your institution of choice.
A-Levels are recognised in many countries and are the traditional route for university entry in the UK. The depth of knowledge gained in specific subjects may be advantageous for students with clear career goals.
The IB sends transcripts to approximately 4,500 universities across 110 countries, including top destinations such as the United States, United Kingdom, Germany, Hong Kong, and Australia (Source: IBO University Admission). Cambridge International A-Levels are delivered through more than 3,100 schools in 128 countries and are widely accepted by universities in the UK and Commonwealth nations. Both qualifications provide strong pathways to higher education, with the choice often depending on your target university’s specific requirements and your child’s academic strengths.
Give Yourself A Head Start At AIS
In the choice between the IB and A-Levels, there is no one-size-fits-all answer. The decision depends on individual preferences, learning styles, and future aspirations. Learn more about our admissions process.
The IB offers a holistic education with a global perspective, while A-Levels provide depth and specialisation in chosen subjects.
Both qualifications are widely recognised by universities worldwide, and the key lies in aligning the chosen curriculum with one’s academic and career goals.
At AIS Singapore, we are committed to supporting you on your IB study journey through a holistic education and our nurturing community, so that you grow into the best version of yourself – as a student and an individual.
Get started by booking your campus tour today!
IB Vs A-Levels FAQ
Is IB harder than A-Levels?
The IB requires students to study six subjects plus complete the Extended Essay, Theory of Knowledge, and CAS components. A-Levels allow students to focus on 3-4 subjects in greater depth. Neither is universally “harder”; the IB demands breadth and time management across multiple disciplines, while A-Levels require deeper mastery of fewer subjects. The better choice depends on your child’s learning style and academic strengths.
Do Singapore universities accept both IB and A-Levels?
Yes. Singapore’s major universities, including NUS, NTU, and SMU, accept both the IB Diploma and A-Levels for admission. Each institution sets specific grade requirements, so families should check individual university admission pages for current entry criteria.
Can students switch from A-Levels to IB or vice versa?
Switching between programmes mid-course is generally not recommended due to significant curriculum differences. Students considering a change should consult with school counsellors early in Year 10 to understand the implications for university applications and academic progression.
Which qualification do UK universities prefer?
UK universities accept both qualifications equally. Some courses with specific subject requirements (medicine, engineering) may specify particular A-Level subjects, while the IB’s breadth can be advantageous for arts, humanities, and interdisciplinary programmes. Check individual university course requirements for specific guidance.
Author: Lisa Olinksi, AIS Singapore Director of Admissions
