The International Baccalaureate Diploma Programme awards candidates a score on a 45-point scale. Six subjects contribute up to 42 points, each graded 1 through 7, and the Extended Essay (EE) combined with Theory of Knowledge (TOK) contributes up to 3 additional bonus points. To work out your total, add your six subject grades and then look up the EE and TOK bonus in the matrix above. The minimum total to receive the diploma is 24 points, provided all other conditions are also met.

How the IB Diploma Score Is Calculated

Three subjects must be taken at Higher Level (HL) and three at Standard Level (SL). Each subject is scored 1 through 7 independently of the others. There is no weighting between HL and SL in the point total; a 7 at SL contributes the same number of points as a 7 at HL. That said, universities often evaluate HL grades separately when setting conditional offers, so a high total achieved mainly through SL subjects may carry less weight in competitive admissions. The bonus from EE and TOK can add 0, 1, 2, or 3 points depending on the grade combination. A grade of E in either the EE or TOK triggers an automatic diploma failure regardless of total score.

Understanding EE and TOK Bonus Points

The EE and TOK are each graded A through E, and their grades are combined using the matrix displayed in the calculator above. Given that the maximum bonus is 3 points, a student who scores 39 on subjects and achieves A grades in both EE and TOK reaches the maximum total of 42. The bonus cannot compensate for a weak subject score: a student scoring 21 on subjects and earning 3 bonus points still falls short of the 24-point minimum. With that in mind, candidates should carry out a balanced preparation strategy across all six subjects rather than depending on the EE and TOK to build up the total. The IBO assessment guide sets out the full bonus matrix and the conditions under which a grade of E results in diploma failure.

What Is a Good IB Score?

A score of 30 or above is broadly considered a passing standard for well-regarded universities, and 36 or above opens access to selective programmes. A score of 40 or above is competitive for the most prestigious institutions globally. The University of Cambridge typically requires 41-42 points with 776 at HL for competitive courses. Imperial College London and the London School of Economics commonly require 38-40. As a result, students targeting top UK universities need both a high total and strong HL grades in relevant subjects.

In the US, many universities figure out IB credit eligibility using individual subject scores rather than the total. A score of 5 or above on a Higher Level examination typically qualifies for course credit at institutions with formal IB credit policies. To narrow down which of your target programmes offer the most favourable credit arrangements, check each university's published IB credit guide. Our GRE Score Calculator provides similar benchmark comparisons for graduate-level admissions testing if you are planning postgraduate study.

Diploma Failing Conditions You Must Know

The IBO sets six conditions that must all be met to receive the diploma. A candidate fails if the total score is below 24, if a grade of 1 is awarded in any subject, if more than one HL subject is graded 2 or below, if two or more SL subjects are graded 2 or below, or if the EE and TOK combination results in a failing grade. The sixth condition is completion of CAS (Creativity, Activity, Service) requirements, which cannot be calculated but must be verified with the candidate's school. On top of that, candidates should note that meeting the 24-point minimum does not guarantee the diploma if any of the individual subject or EE and TOK conditions are also triggered. The IBO assessment procedures document contains the full official list of conditions.

How Universities Use IB Scores

UK universities typically set conditional offers specifying a minimum total alongside minimum HL grades in relevant subjects. A medicine programme might require 38 points overall with 7, 6, 6 at HL in Biology, Chemistry, and Mathematics. This means a student with a total of 40 but only a 5 in HL Chemistry may not meet the conditional offer even though the total is higher. For a full picture of your academic profile, our GPA Calculator lets you combine IB scores with grade point data for international university comparisons.