Enter your IB subject grades (1–7) for all six groups plus your Theory of Knowledge and Extended Essay letter grades to get your predicted IB Diploma total score out of 45. The calculator checks for failing conditions, computes core bonus points from the TOK/EE matrix, and tells you whether you'd be awarded the diploma.
Predicted IB Diploma Score
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Subject Points
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Core Points (TOK + EE)
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HL Subjects
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SL Subjects
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Diploma Awarded?
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The IB Diploma score is out of 45 points. You earn up to 42 points from six subjects (each graded 1–7), plus up to 3 bonus points from the Theory of Knowledge (TOK) and Extended Essay (EE) matrix. Your TOK and EE letter grades (A–E) are combined to determine how many bonus points (0–3) you receive.
You can fail the IB Diploma even with a high total score if certain conditions are met: scoring an E in either TOK or EE, having more than three grades at level 3 or below, having a grade 1 in any subject, failing to complete CAS, or not having at least three subjects at Higher Level. This calculator checks for the most common of these conditions.
IB Diploma students must take at least three (and no more than four) subjects at Higher Level (HL) and the remaining subjects at Standard Level (SL), totalling exactly six subjects across the six subject groups.
TOK and EE grades are combined using an official matrix. The maximum bonus is 3 points (both A). If one is A and the other B, you get 3 points. Mixed combinations of B/C typically give 1–2 points. If either receives an E grade, you receive 0 bonus points and it becomes a failing condition.
The minimum total score to receive the IB Diploma is 24 points out of 45, provided no failing conditions are triggered. You also need at least a D in both TOK and EE, completion of CAS, and no grade 1 in any subject.
CAS (Creativity, Activity, Service) does not add points to your score, but it is a mandatory requirement for diploma award. Failing to complete CAS requirements will result in the diploma not being awarded regardless of your total score.
Yes. This calculator is well-suited for estimating the predicted grade your school will submit to universities. Simply enter the grades your teachers expect you to achieve rather than your current grades. Keep in mind final boundaries vary by exam session.
IB exam timezones refer to regional exam schedules (e.g., Timezone 1 for Europe/Africa, Timezone 2 for Americas, Timezone 3 for Asia-Pacific). While the same grade boundaries generally apply globally, specific subject papers and their mark boundaries can differ slightly by timezone. This simplified calculator uses grade inputs (1–7) directly, which are already timezone-adjusted.