Cambridge vs IB Curriculum 2026: Which Is Right for Your Child?
The short answer: choose Cambridge (IGCSE then A Levels) if your child does best going deep into three or four subjects and sitting exams, and the IB Diploma if they are strong across the board and want a broader programme with an essay, theory of knowledge and service built in. Both are accepted by every major university system; Oxford publishes offers for both, and the 2026 results season shows both systems in rude health. Here is what each one is, how they differ, what universities say, and what the numbers look like in 2026.
What is the Cambridge curriculum?
Cambridge International Education is part of the University of Cambridge and runs a pathway from age 5 to 19: Cambridge Primary, Lower Secondary, then the IGCSE at 14 to 16 and Cambridge International AS & A Levels at 16 to 18. Students typically take eight to ten IGCSEs and then three or four A Levels, graded A* to E. Assessment is mostly by written examination in two sessions a year. Cambridge says its programmes are taught in 10,000 schools in 160 countries.
What is the IB curriculum?
The International Baccalaureate, founded in Geneva in 1968, offers four programmes: the Primary Years Programme (3 to 12), Middle Years Programme (11 to 16), the Diploma Programme (16 to 19) and the Career-related Programme. The Diploma requires six subjects across languages, humanities, sciences, mathematics and the arts (three at Higher Level), plus the Extended Essay, Theory of Knowledge and CAS (creativity, activity, service). Each subject is scored 1 to 7 and the core adds up to 3 points, for a maximum of 45. According to the IB's facts and figures, more than 6,200 schools run over 9,100 IB programmes in more than 160 countries as of August 2026, teaching about 1.95 million students.
How do Cambridge and IB compare?
| Feature | Cambridge (IGCSE, A Level) | IB Diploma |
|---|---|---|
| Run by | Cambridge International Education, University of Cambridge | International Baccalaureate Organization, Geneva (founded 1968) |
| Age range | 5 to 19 across the full pathway; A Levels 16 to 18 | 3 to 19 across four programmes; Diploma 16 to 19 |
| Subjects at 16 to 18 | 3 or 4 A Levels, chosen freely | 6 subjects from set groups, 3 at Higher Level |
| Compulsory core | None beyond the subjects | Extended Essay, Theory of Knowledge, CAS |
| Assessment | Mainly written exams; some coursework | Exams plus internally assessed coursework in every subject |
| Grading | A* to E per subject | 1 to 7 per subject, 45 maximum; global average 30.88 in May 2026 |
| Schools | 10,000 schools, 160 countries | 6,200+ schools, 160+ countries (August 2026) |
| Best suited to | Subject specialists, exam-confident students | All-rounders who want breadth and independent research |
Sources: Cambridge International global community page; IB facts and figures; IB May 2026 results release (209,607 students, average 30.88 points).
Which curriculum suits which child?
Choose Cambridge if your child
- already knows what they want to study and wants to go deep early;
- performs best in timed written exams;
- would find six subjects plus a core a distraction rather than a stretch;
- is aiming at a course, such as medicine or engineering in the UK, that specifies particular A Level subjects.
Choose the IB if your child
- is strong in both sciences and humanities and does not want to drop either at 16;
- works well on extended projects and independent research;
- may apply to universities in several countries and wants one qualification recognised in all of them;
- benefits from a structure that rewards steady work across the two years rather than final exams alone.
What do universities think of each?
Both are accepted everywhere that matters, and universities publish parallel requirements. The University of Oxford's international qualifications page asks for 38, 39 or 40 IB points depending on the course, with 6s and 7s at Higher Level, next to its A Level offers, and notes that the Career-related Programme is not accepted. US universities treat both as rigorous college-preparatory programmes and many give credit for Higher Level IB scores of 5 or above and for A Level grades. The practical difference is subject coverage: a UK course that requires Chemistry and Mathematics will want them at A Level or IB Higher Level, whichever system you are in.
Where are they offered, and what do they cost?
In the big international school cities both are widely available, often in the same school: a common model is Cambridge IGCSE to 16, then a choice of A Levels or the IB Diploma. Fees follow the school more than the curriculum. In Bangkok, for example, the IB Diploma is offered by ISB and Bangkok Patana at the top of the fee table and by Ascot at a third of the price; see our Bangkok fees guide for the 2026/27 numbers.
To compare schools by curriculum, use the directory filters: IB schools, Cambridge schools, or browse by city, starting with Singapore, Bangkok and Hong Kong.
Frequently asked questions
- Is the IB harder than Cambridge A Levels?
- They are hard in different ways. A Levels demand depth in three or four subjects, so a weak subject can be dropped at 16. The IB Diploma demands consistent performance across six subjects plus the Extended Essay, Theory of Knowledge and CAS, so there is nowhere to hide a weakness but no single subject goes as deep. The global average Diploma score in May 2026 was 30.88 out of 45.
- Which is better for getting into a top university?
- Neither is preferred by policy. Oxford, for example, publishes IB requirements of 38 to 40 points with 6s and 7s at Higher Level alongside its A Level offers, and every major UK, US, Australian and European university publishes equivalents for both. What matters is the grades you can realistically achieve in the system that suits you.
- Can a student switch from Cambridge to IB, or the other way?
- Yes, and the usual switch point is age 16: many schools run Cambridge IGCSE to 16 and then offer a choice of A Levels or the IB Diploma. Switching mid-programme is harder because the courses are structured differently. Talk to the receiving school at least a year ahead.
- Do Cambridge schools also offer the IB?
- Many do. The common model in international school hubs is IGCSE in Years 10 and 11 followed by either A Levels or the IB Diploma in Years 12 and 13. Filter DailySchools by curriculum to find schools that list both.
- How many schools offer each programme?
- Cambridge International says its programmes and qualifications are taught in 10,000 schools in 160 countries. The IB reports more than 6,200 schools running over 9,100 programmes in more than 160 countries as of August 2026, with about 1.95 million students. Cambridge is the more widely available, especially at primary level; the IB is the larger single brand at 16 to 19.
- Which costs more?
- In the same city, IB Diploma schools tend to sit at the higher end of fee tables, partly because the programme carries registration, examiner and coordination costs, but the school matters far more than the curriculum. In Bangkok, for instance, IB is offered at the most expensive schools and at schools charging less than half as much.
