Quick answer: AP vs IB, which programme suits your child? AP is a menu of single college-level courses with exams every May, each scored 1 to 5. The IB Diploma is a two-year package of six subjects plus a research essay, marked out of 45. AP fits students aiming at US universities; the IB travels further. In Madrid, Brewster Madrid offers both routes.
Last reviewed: November 2026 by David from ISA. Fee ranges are indicative; always confirm with the school.
Key takeaways
- The College Board lists AP courses in 42 subjects, and the 2027 AP exams run from 3 to 7 May and from 10 to 14 May.
- The IB Diploma is marked out of 45; the University of Cambridge's minimum IB offer is 41 to 42 points with 776 at Higher Level.
- LSE treats five APs at grade 5, plus a High School GPA of at least 3.7, as equivalent to A*AA or AAA at A Level.
- In Spain, IB holders apply through UNEDasiss accreditation, while a US High School Diploma must first be homologated to the Spanish Bachiller.
Families moving to Madrid from the United States, or weighing an American school against an IB school, usually reach the same question by Grade 9: AP vs IB, which programme will serve this particular child better? The two are often described as equivalent "advanced" options, but they are built very differently, and universities read them differently too.
This guide explains how each works, how heavy each is, what British, American and Spanish universities ask for, and which Madrid schools offer AP, IB or both.
What is the difference between AP and IB?
AP is a set of individual courses you can mix and match; the IB Diploma is a fixed two-year programme with compulsory parts. Advanced Placement is run by the College Board in the United States and covers 42 subjects, from Calculus BC and Chemistry to Art History. Each course ends in an exam in May (in 2027, from 3 to 7 May and from 10 to 14 May), scored on a 1 to 5 scale, with results in early July. The College Board says many US colleges grant credit or placement for scores of 3 and above. A student can take one AP, or eight.
The IB Diploma is taken in Grades 11 and 12 in American schools, or Years 12 and 13 in British ones. Students study six subjects, typically three at Higher Level and three at Standard Level, each marked out of 7. On top sits the core: Theory of Knowledge (TOK), an extended essay of up to 4,000 words and Creativity, Activity, Service (CAS). The six subjects give a maximum of 42 points, TOK and the extended essay add up to 3 more, and the total is out of 45. At the American School of Madrid, the class of 2026 averaged 32.97 points, with a top score of 42.
| Feature | AP (Advanced Placement) | IB Diploma Programme |
|---|---|---|
| Run by | College Board (US) | International Baccalaureate |
| Structure | Single courses, chosen freely | Six subjects plus TOK, extended essay and CAS |
| Grading | 1 to 5 per exam | 1 to 7 per subject, total out of 45 |
| Exams | May each year (3 to 14 May 2027) | End of the two-year course |
| Cambridge typical evidence | At least five APs at grade 5, plus SAT or ACT | 41 to 42 points, 776 at Higher Level |
| Spanish university route | Homologate the US diploma, then UNEDasiss | UNEDasiss accreditation directly |
Sources: College Board 2027 exam calendar and score guide; University of Cambridge international qualifications page (2026); UNEDasiss and Spanish Ministry of Education guidance, checked November 2026.
Which is harder, AP or IB?
Neither is harder in every case: the IB is harder to sustain, while AP is as hard as the number of courses a student stacks up. The IB asks for breadth whether or not a teenager enjoys every subject, with a language, a science, maths and a humanity running in parallel for two years, plus the essay and CAS. The American School of Madrid tells families that CAS adds up to 150 hours of activity and service.
AP difficulty depends on the plan. Two APs in favourite subjects is a manageable stretch; five or six, which is what the most selective British universities look for, is a heavy load with every exam in the same May fortnight. Strong all-rounders who like writing tend to cope with the IB, while students with a clear specialism often prefer to go deep through AP.
AP vs IB for university: US, UK and Spain
United States. The College Board says nearly all US colleges grant credit or placement for qualifying AP scores. US colleges also admit IB students routinely, but each sets its own IB credit rules, so check every college on the list.
United Kingdom. A US High School Diploma alone is not enough for the most selective universities. LSE asks for five APs at grade 5, taken over a maximum of three years, plus a GPA of at least 3.7 for courses requiring A*AA or AAA, or a GPA of 3.7 with an ACT of 32 or SAT of 1450. Cambridge expects at least five APs at grade 5 in related subjects, a high SAT or ACT score and a high GPA. Imperial College London asks for five APs graded 5, 5, 5, 4 and 4, or three graded 5, 5 and 4 with a SAT of 1460 or ACT of 31. For the IB, Cambridge's minimum offer is 41 to 42 points and Imperial's range is 38 to 42.
Spain. UNEDasiss groups the IB with EU education systems: holders receive an accreditation with an access grade converted to the Spanish scale, and can sit the Pruebas de Competencias Específicas (PCE) to raise it, with at least two subjects recommended. A US High School Diploma follows the route for systems outside the EU: it must first be homologated to the Spanish Bachiller by the Ministry of Education, with apostilled and officially translated documents, and public universities then ask for UNEDasiss accreditation and PCE exams, with at least four subjects recommended. The Ministry's note for US students does not list AP results as a homologation requirement. Private universities set their own criteria.
What about AP vs IB vs A Level?
A Levels sit closer to AP than to the IB: students usually take three or four subjects in depth, with no compulsory core. LSE's equivalence table makes the comparison concrete, treating five APs at grade 5 as the match for A*AA or AAA. If your child is choosing between a British school and an IB school, our guide to IB vs A Levels and which suits your child sets out that decision, and the IB Diploma Programme explained, from subjects to scores covers the IB in more detail.
Which Madrid schools offer AP, IB or both?
Madrid has far more IB schools than AP schools, and "American school" does not automatically mean AP.
St. George School Madrid
A British school that moves every student into the IB Diploma after IGCSE. The school says 100% of its Sixth Form takes the IB Diploma, with a 97% pass rate and a top score of 44 points, according to figures on its website checked in November 2026. A good fit for families who want one clear route and a broad final qualification.
Brewster Madrid
An American school in Chamberí with a separate Pre-University Hub for Grades 11 and 12. Upper School students can pursue the American High School Diploma with a wide range of AP courses, or apply for the IB Diploma; according to the school, IB students also earn the American diploma. Brewster has announced that the IB will also be offered at its La Moraleja campus. Worth a visit if you want to keep both doors open until Grade 10.
The American School of Madrid
The pathways ASM lists for Grades 9 to 12 are the US High School Diploma, which every graduate receives, the IB Diploma in Grades 11 and 12 and Spain's Programa Oficial. The school reports a 92% IB Diploma pass rate for the class of 2026. Its published private tuition for Grades 9 to 12 is EUR 25,072 a year, plus a EUR 250 application fee.
How should you choose between AP and IB?
Start from the destination, not the label. For a US college, AP fits naturally and the IB is equally welcome. If the UK or continental Europe is likely, the IB is usually simpler, because a diploma plus APs must clear extra hurdles such as five 5s and a test score.
Count the APs your school really runs. Cambridge notes that students at schools offering fewer than five APs should self-enrol for extra AP tests. Ask how many AP courses actually ran last year, not how many appear in the catalogue.
Plan the Spanish paperwork early. Apostilles and official translations take weeks, and UNEDasiss and university deadlines do not move.
- Which AP courses or IB subjects ran this year, and with how many students?
- What were last year's AP score distribution and IB average?
- Can a student switch between AP and IB after Grade 10?
- Who handles UNEDasiss, homologation and UCAS applications?
Compare schools in Madrid
To compare curricula, fees and locations, browse our list of the best international schools in Madrid and shortlist the schools whose upper-school route matches your child's plans.
Sources: College Board (AP courses, 2027 exam dates and scoring); University of Cambridge, LSE and Imperial College London undergraduate entry requirements; UNEDasiss student profiles; Spanish Ministry of Education guidance on US qualifications; St. George School Madrid, Brewster Madrid and The American School of Madrid websites.
More guides to schools in Madrid
- International school fees in Madrid
- Bilingual schools in Madrid
- International school admissions in Madrid
- How to choose an international school in Madrid
- Best international schools in Madrid
- best international schools in Madrid
Frequently asked questions
Is AP or IB better for UK universities?
Both are accepted, but the IB is usually simpler. Cambridge's minimum IB offer is 41 to 42 points with 776 at Higher Level, while AP applicants need at least five APs at grade 5 plus a high SAT or ACT and GPA. LSE asks for five APs at grade 5 and a GPA of 3.7 for its AAA courses.
Do Spanish universities accept AP?
A US High School Diploma, with or without APs, must first be homologated to the Spanish Bachiller by the Ministry of Education, with apostilled and translated documents. Public universities then ask for UNEDasiss accreditation and PCE exams, with at least four subjects recommended. The Ministry's note does not list AP results as a homologation requirement; private universities set their own criteria.
How many AP courses should my child take?
It depends on the target. Many US colleges grant credit from a score of 3, so even one or two APs help. For selective UK universities, plan for five: Cambridge expects at least five APs at grade 5, LSE five at grade 5, and Imperial five graded 5, 5, 5, 4 and 4, or three with a strong SAT or ACT.