Introduction

RevisionDojo’s free IB Grade Calculator helps IB Diploma Programme students turn practice marks into a clear 0–45 prediction and a concise scoresheet. It accepts subject marks, official grade boundaries, your examination timezone, and core selections for TOK and the Extended Essay (EE), then outputs total points and an indicative “Diploma Awarded?” status. Use it to check university targets, identify weak subjects, and plan focused revision. See the live tool on the IB Grade Calculator page. IB Grade Calculator

Required inputs

Enter the following exactly as they apply to your session and subjects. The calculator relies on accurate boundaries and core selections.

Subjects: six IBDP subjects (SL/HL as relevant).
Marks: your best representative marks for each subject (from mocks or timed practice).
Official grade boundaries: the mark ranges that map to grades 1–7 for your timezone/session.
Examination timezone/session: ensures you use the correct set of boundaries for your cohort.
Core selections: predicted grades for Theory of Knowledge (TOK) and the Extended Essay (EE).

A quick reference table of what you’ll provide and why it matters:

Field	What you enter	Why it matters
Subject + level	e.g., Biology HL, Math AA SL	Determines which boundaries and targets to apply.
Mark	Raw score from a recent mock or paper set	Converted to a 1–7 using the boundaries you supply.
Grade boundaries	Official cut scores for your session/timezone	Drives accurate 1–7 conversion per subject.
Exam timezone	Your IB timezone or session	Aligns boundaries to your exact cohort.
TOK + EE grades	Predicted letter grades (A–E)	Determines 0–3 core points added to the total.

Source for tool scope and inputs: IB Grade Calculator.

Calculation logic (step‑by‑step)

Subject grades (1–7): For each of the six subjects, your entered mark is mapped to a grade using the official boundary table you supplied for that subject and timezone.
Subject total (0–42): The six subject grades are summed to a maximum of 42.
Core points (0–3): Your selected TOK and EE grades are combined via the IB core matrix to yield 0–3 points. Note: a TOK E + EE E combination yields 0 core points. IB Grade Calculator
Final total (0–45): Subject total (0–42) + core points (0–3).
Diploma status: The scoresheet displays an indicative “Diploma Awarded? YES/NO” based on your inputs (total points and core conditions). Treat this as guidance only; final results depend on official IB moderation and all program requirements. IB Grade Calculator

What the scoresheet shows

After you submit inputs, the calculator produces a compact report so you can interpret results at a glance:

Per‑subject line items: subject, mark, boundary‑derived grade (1–7), and points contribution.
Core summary: TOK grade, EE grade, and computed Core Points (0–3).
Grand total: 0–45 IB points.
Diploma flag: “Diploma Awarded? YES/NO” based on the entered data.

Example elements shown on the tool include core rows (TOK, EE, Core Points) and the diploma flag. IB Grade Calculator

Turning a prediction into a plan (next steps)

Use your scoresheet to target the highest‑leverage improvements. The links below integrate directly with the calculator’s use cases.

Close topic gaps with unlimited practice and instant feedback:
Practice questions with AI grading and mark‑scheme feedback. Questionbank
Build targeted tests by subject/paper/topic to match your weak areas. Test Builder
Simulate timed exam conditions and get post‑exam analytics. Exam Mode
Boost core points (TOK/EE):
Upload drafts for criterion‑aligned feedback with annotations and next steps. IB Coursework Grader
Automate active recall between papers:
Generate and use spaced‑repetition decks tied to your syllabus. Flashcards
For teachers and schools: analyze cohort trends and align teaching to gaps:
Free teacher access with analytics and bulk grading. For Schools

Practical workflow

Week 0: Run the calculator with your latest mock marks to set a baseline. IB Grade Calculator
Weeks 1–2: Target the lowest two subjects via custom tests on weak topics; alternate untimed learning with timed Exam Mode.
Week 3: Re‑run the calculator with fresh practice marks; adjust targets and switch focus to the next bottleneck.
Weekly: Submit TOK/EE drafts for granular, criterion‑level improvements; keep spaced‑repetition sessions short and daily.

Accuracy, independence, and privacy

Independence: RevisionDojo is developed independently and is not endorsed by the International Baccalaureate Organization. You will see this disclaimer across features. IB Grade Calculator
Predictions are estimates: Final grades depend on official exams, moderation, and full IB requirements.
Data and cookies: See cookie and privacy disclosures for how data is handled across the platform. Cookie Policy • Trust & Privacy Controls

Related IB resources

Comprehensive, syllabus‑aligned support exists for all major IB subjects. Explore a few examples below to pair with your calculator workflow:

IB Biology (first assessment 2025): notes, videos, lessons, questionbank, predicted papers. IB Biology
IB Chemistry (first assessment 2025): assessments at a glance, extensive practice sets. IB Chemistry
IB Math AA: full breakdown of Papers 1–3 and IA support. IB Math AA

Key takeaways

Enter accurate marks, the correct official boundaries for your timezone, and TOK/EE grades to produce a reliable 0–45 estimate. IB Grade Calculator
Use the scoresheet to decide where one extra point is most attainable, then drill those topics with targeted tests, timed practice, and instant feedback. Questionbank • Test Builder • Exam Mode
Don’t leave core points on the table—iterate drafts with AI rubric feedback. IB Coursework Grader