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Introduction: Why Predicted IB Grades Matter

Predicted grades are more than academic forecasts—they shape university admissions, especially for students applying under early decision or conditional offers. If you're in the IB Diploma Programme and wondering, “How can I calculate my predicted grade?”, this guide walks you through every step of the process.

What Is a Predicted IB Grade?

A predicted grade is a teacher’s estimate of the score a student is most likely to achieve in a given IB subject by the end of the course. It’s reported to the IB and used by universities to make admission decisions before final exams are completed.

How to Calculate Your Predicted IB Grade

Step 1: Identify the Components in Each Subject

Each IB subject consists of:

Internal Assessments (IA): 20–30% of your final grade
External Assessments (Exams): 70–80% of your final grade
Oral exams (for languages)
Coursework (for arts and sciences)

Step 2: Gather Your Internal Assessment Scores

Ask your teacher what your IA score is (or estimate based on your performance and rubric). For example:

Biology IA score: 20 out of 24
Convert this to a percentage: 83.3%

Step 3: Estimate External Assessment Scores

These include Paper 1, Paper 2, and sometimes Paper 3:

Use mock exam results or past paper performance
Convert your raw score to a percentage
Example: 72/100 = 72%

Step 4: Apply the Weighting Formula

Use the weighting for the subject (typically provided in the syllabus):

Example for HL Science:

IA: 20%
Paper 1–3: 80%

Predicted Score = (IA % x 0.2) + (Exam % x 0.8)
Example: (83.3% x 0.2) + (72% x 0.8) = 16.66 + 57.6 = 74.26%

Step 5: Match Your Final % to the IB Grade Boundaries

Refer to IB grade boundaries (can vary by year and subject):

In our example, a score of 74.26% corresponds to a predicted grade of 6.

How to Calculate Your Total Predicted IB Score

Repeat the above steps for all six subjects, then:

Add the predicted grades for each subject (max 42)
Add predicted points from TOK + EE (up to 3)

Total Predicted IB Score = Subject Grades (max 42) + Core Points (max 3)
Example:

3 HL subjects: 6, 6, 5
3 SL subjects: 6, 5, 5
TOK/EE Bonus: 2
Total: 6+6+5+6+5+5 = 33 + 2 = 35

Tips to Improve Your Predicted IB Grade

1. Ace Your Internal Assessments

Start early and use the IB rubric
Get feedback and revise where possible

2. Excel in Mock Exams

Treat mocks as seriously as finals
Focus on exam-style writing, timing, and mark scheme alignment

3. Participate Actively in Class

Teachers value consistent academic engagement
Show growth and improvement over time

4. Seek Feedback

Regularly ask your teacher about your standing
Use their input to address specific weaknesses

FAQs: Predicted IB Grades Explained

Q1: Who decides my predicted grade?

Your subject teacher, using your IA, classwork, mock exams, and professional judgment.

Q2: Can I see my predicted grades?

In most schools, yes. However, policies vary—ask your IB coordinator.

Q3: Can predicted grades be changed?

Yes, teachers can revise them before submission deadlines if your performance improves.

Q4: How accurate are predicted grades?

They are usually close but not guaranteed. They reflect likely performance, not guaranteed outcomes.

Q5: Do universities accept students below their predicted scores?

Some do, depending on final scores, essay strength, and overall application quality.

Conclusion: Calculating Your Predicted IB Grade With Confidence

To calculate your predicted IB grade:

Estimate IA and exam scores
Apply correct weightings
Use IB grade boundaries
Add up your subject grades and core points

Predicted grades are essential for university applications and scholarship consideration. Knowing how they’re calculated empowers you to take control, ask informed questions, and strategically boost your academic performance.

Use the RevisionDojo IB Predicted Grade Calculator

Want to calculate your full predicted IB score in seconds?

Try the free RevisionDojo IB Predictor Tool — just enter your IA marks and mock results to receive instant, subject-by-subject forecasts based on official IB weightings and grade boundaries.

Start optimizing your score now with the exact methods your teachers and universities use.

How to Calculate My Predicted Grade in IB? | Step-by-Step Guide