IB Grade Calculator
Combine exams and internal assessment, then apply the grade boundaries used by your class or examination session.
Grade boundaries
Enter the percentage boundaries for your subject, level, and examination session. IB boundaries vary, so no universal defaults are prefilled.
Use the correct IB component weights
IB subjects do not all use the same paper and internal-assessment weights. Copy the current weights from your subject guide or teacher before treating the estimate as meaningful.
Predicted grade versus final grade
A predicted grade is a school estimate based on the evidence available at that time. The final grade comes from moderated internal work and externally assessed components.
Primary reference: IB Diploma Programme assessment
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Common questions
How do I calculate an IB predicted grade?
Convert each assessment component to a percentage, apply its course weight, add the weighted components, and compare the result with the boundaries supplied by your teacher or school.
Are IB grade boundaries the same every year?
No. Boundaries can differ by subject, level, component, and examination session. Replace the example boundaries with the ones relevant to your course.
Does internal assessment count toward the final IB grade?
In most subjects, yes. The exact internal-assessment weight depends on the subject and level, so enter the weight listed in the current subject guide.