The International Baccalaureate Diploma Programme (IB DP) is one of the most respected pre-university qualifications in the world. Designed for students aged 16 to 19, this rigorous two-year programme develops critical thinking, intercultural understanding, and academic excellence across a broad range of disciplines.
For school owners looking to strengthen their academic offerings, understanding the IB diploma requirements is essential. Parents, too, benefit from knowing exactly what the programme demands and what doors it opens for their children. With recognition from universities in over 140 countries, the IB Diploma continues to set the global standard for secondary education.
This guide breaks down the IB diploma requirements in full. From the six subject groups and core components to the scoring system and university expectations, you will find everything you need to make an informed decision about whether the IB pathway is right for your school or your child.
The Six Subject Groups, TOK, EE, and CAS: What the Diploma Requires
The IB Diploma Programme is built on a carefully balanced academic framework. Students must study six subjects, one selected from each of the following groups:
- Studies in Language and Literature (Group 1): A literature course in the student’s first language, developing analytical reading and writing skills.
- Language Acquisition (Group 2): A second language such as French, Spanish, Mandarin, or another modern language offered by the school.
- Individuals and Societies (Group 3): Subjects including History, Geography, Economics, Business Management, and Psychology.
- Sciences (Group 4): Options such as Biology, Chemistry, Physics, Computer Science, and Environmental Systems and Societies.
- Mathematics (Group 5): Students choose between Mathematics: Analysis and Approaches or Mathematics: Applications and Interpretation.
- The Arts (Group 6): Offerings such as Visual Arts, Music, Theatre, and Film. Students may also substitute this group with a second subject from Groups 1 to 4.
Of these six IB diploma subjects, students take three at Higher Level (HL) and three at Standard Level (SL). Higher Level courses involve approximately 240 teaching hours over two years, while Standard Level courses cover around 150 hours. This structure ensures that students develop both depth in their strongest areas and breadth across the full curriculum.
The Diploma Core: TOK, EE, and CAS
Beyond the six subjects, every IB Diploma candidate must complete three core components that are central to the programme’s philosophy.
Theory of Knowledge (TOK) is an interdisciplinary course that encourages students to reflect on the nature of knowledge itself. Students explore how different disciplines construct and validate knowledge, and they present their findings through a TOK Exhibition and a 1,600-word essay.
The Extended Essay (EE) is an independent research project of up to 4,000 words. Students choose a topic within one of their IB subjects and conduct original research, building skills in academic writing, analysis, and critical inquiry.
Creativity, Activity, Service (CAS) requires students to engage in creative, physical, and community-oriented experiences throughout the programme. While CAS is not graded, students must demonstrate that they have met eight specific learning outcomes in their reflective journals. Failure to complete CAS means the diploma will not be awarded, regardless of the student’s total score.
Together, TOK and the Extended Essay can contribute up to three bonus points toward the final diploma score, making the maximum possible score 45.
Scoring and Passing Criteria Explained
Understanding how to get an IB diploma starts with knowing how the scoring works. Each of the six subjects is graded on a scale from 1 (lowest) to 7 (highest), giving a maximum of 42 points from subjects alone. With up to 3 additional bonus points from the combined performance in TOK and the Extended Essay, the highest possible IB Diploma score is 45.
The IB uses a criterion-referenced grading system rather than grading students on a curve. This means that if every candidate in a cohort meets the criteria for a grade 7, every one of them can receive it. Grade boundaries are reviewed each examination session and are determined based on assessment data, senior examiner judgment, and grade descriptors.
To be awarded the IB Diploma, students must satisfy all of the following conditions:
- Achieve a minimum total of 24 points across all six subjects and the core.
- Receive a grade in all six subjects, TOK, and the Extended Essay.
- Obtain at least a grade 2 in every subject.
- Have no more than two subjects graded at 2 (whether HL or SL).
- Have no more than three subjects graded at 3 or below.
- Earn a minimum of 12 points across their three Higher Level subjects and a minimum of 9 points across their three Standard Level subjects.
- Receive no grade of 1 in any subject.
- Not receive a grade of “N” (no grade) for academic malpractice.
- Complete all CAS requirements.
- Not receive a grade of E in both TOK and the Extended Essay.
Students who meet the academic thresholds but fall short of one or more passing conditions will receive IB Course Certificates for the individual subjects they passed, rather than the full diploma. The global mean diploma score for the May 2025 session was approximately 30.6 points, which provides useful context for schools and families evaluating programme difficulty.
University Recognition: What IB Diploma Scores Universities Expect
One of the strongest advantages of the IB Diploma Programme is its global university recognition. Institutions across more than 140 countries accept the IB Diploma as a valid entry qualification, and many actively seek IB graduates for their proven analytical and research capabilities.
Here is a general overview of the score ranges that different tiers of universities typically expect:
| University Tier | Expected IB Score |
| Highly selective (Oxbridge, Ivy League) | 36 to 45 points |
| Top-ranked global universities | 32 to 38 points |
| Strong UK/European/Australian universities | 30 to 34 points |
| Foundation or conditional entry programmes | 24 to 29 points |
It is important to note that universities do not evaluate IB candidates on total points alone. Many institutions pay close attention to Higher Level subject grades, particularly those that are relevant to the student’s intended course of study. A student applying for engineering, for instance, would be expected to present strong HL grades in Mathematics and Physics.
In the United States, universities frequently convert IB scores into college credit. A score of 6 or 7 in a Higher Level subject is commonly treated as equivalent to a 4.0 GPA, reflecting the academic rigour of the programme. In the United Kingdom, universities publish conditional offers that specify both total points and minimum HL grades.
Beyond scores, admissions teams also value the holistic development that the IB fosters. The Extended Essay demonstrates research skills, the CAS portfolio reflects community engagement, and the TOK component signals intellectual curiosity. These elements often strengthen university applications beyond what raw grades alone can convey.
For schools considering the IB pathway, this broad university recognition makes the programme a compelling option for preparing students for competitive admissions worldwide.
Frequently Asked Questions About IB Diploma Requirements
What are the basic IB diploma requirements?
Students must complete six subjects (three at Higher Level and three at Standard Level), the Theory of Knowledge course, a 4,000-word Extended Essay, and the Creativity, Activity, Service programme. A minimum score of 24 out of 45 points is required, along with meeting all passing conditions set by the IB Organisation.
How many IB diploma subjects do students take?
Every IB Diploma candidate takes six subjects, one from each of the six subject groups. Students select three subjects at Higher Level and three at Standard Level. Group 6 (The Arts) may be replaced with a second subject from Groups 1 to 4.
How to get an IB diploma if a student fails one subject?
A single low grade does not automatically disqualify a student from earning the diploma, provided all other passing conditions are met. However, a grade of 1 in any subject, or more than three subjects graded at 3 or below, will result in the diploma not being awarded. Students may retake individual subject exams in a later session to improve their results.
Is the IB Diploma accepted by universities worldwide?
Yes. The IB Diploma is recognised by universities in over 140 countries. Many top institutions actively recruit IB graduates and publish specific score requirements for admissions.
Does Rosedale International Education offer the IB Diploma Programme?
Rosedale International Education specialises in delivering the Ontario Secondary School Diploma (OSSD), a globally recognised Canadian curriculum. While Rosedale does not offer the IB Diploma directly, the OSSD serves as a strong internationally recognised qualification that is accepted by universities worldwide without the need for additional external testing. Schools interested in offering a globally respected curriculum can explore partnership opportunities with Rosedale to deliver the OSSD alongside their existing programmes.
Explore the OSSD Pathway with Rosedale International Education
The IB Diploma Programme offers a world-class education, and understanding its requirements is a crucial first step for any school or family considering international curricula. At the same time, the IB is not the only globally recognised pathway available.
For school owners seeking a flexible, competency-based international curriculum that is accepted by universities around the world, the Ontario Secondary School Diploma (OSSD) through Rosedale International Education offers a compelling alternative. Rosedale’s transformative OSSD curriculum emphasises higher-order thinking skills, differentiated instruction, and progressive evaluation, all delivered through a proven partnership model with schools worldwide.
Rosedale’s programme is designed for seamless integration alongside your school’s existing national curriculum, giving students access to a globally recognised Canadian diploma without disrupting their current academic path.
Whether you are a school owner exploring new academic offerings or a parent searching for the best pathway for your child, Rosedale invites you to discover how the OSSD can prepare students for success at top universities worldwide.
Ready to learn more? Contact Rosedale International Education to explore partnership opportunities and bring the OSSD to your school.
