IB Predicted Grade Calculator
Calculate your predicted IB final grades using your test scores, IA marks, and coursework. Get accurate predictions based on official IB grade boundaries.
Enter Your Marks
Your Predicted Grade
Predicted IB Grade
1
Overall: 0%
Very Poor - Minimal achievement
Grade Boundaries
Next Grade Target
You need 31% more to reach Grade 2
Target: 31% total
Component Breakdown
Disclaimer: This calculator provides estimated predictions based on historical grade boundaries. Actual grade boundaries vary each session and depend on the performance of all candidates worldwide. Use this as a guide only - consult with your teachers for official predictions.
How It Works
Select Your Subject
Choose from Mathematics, Sciences, Languages, and Humanities subjects with accurate assessment weightings.
Enter Your Scores
Input your marks from Papers 1, 2, 3, Internal Assessments, and any other components for your subject.
Get Your Prediction
See your predicted final grade (1-7) based on historical grade boundaries and weighted calculations.
Improve Your Grade
Identify which components need improvement to reach your target grade and plan your revision strategy.
Turn That Predicted 6 into a 7
Now that you know your predicted grade, it's time to maximize your actual performance. Marksy's AI shows you exactly where you're losing marks on practice papers and IAs so you can improve your final grade.
Student Success Stories
From Predicted 5 to Final 7
"Marksy helped me identify exactly what I was missing in my Biology IA"
Chemistry HL Breakthrough
"Finally understood where I was losing marks on Paper 2"
Math AA Success
"Improved my IA from a 6 to a 7 with targeted feedback"
Frequently Asked Questions
How accurate are these predicted grades?
Our calculator uses historical grade boundaries from recent IB examination sessions. While grade boundaries can vary slightly each session based on global performance, this provides a reliable estimate of your likely final grade.
What scores should I enter for each component?
Enter your actual marks from mock exams, practice papers, coursework, and Internal Assessments. If you haven't completed all components yet, use your best estimate based on similar past work.
Why do grade boundaries change each session?
The IB uses a statistical process to ensure grades remain consistent over time. If papers are more difficult, boundaries may be lower. If they're easier, boundaries may be higher. This maintains the integrity of each grade level.
Can I predict grades for multiple subjects?
Yes! Simply change the subject in the dropdown to calculate predictions for each of your IB subjects. Each subject has its own specific assessment structure and grade boundaries.
What if my predicted grade is lower than I hoped?
The calculator shows exactly how many percentage points you need to reach the next grade level. Focus your revision on the highest-weighted components where you can make the biggest impact.
Are these the same boundaries used by IB examiners?
We use grade boundaries from recent examination sessions as published by the IB. However, current session boundaries are set after all exams are completed and marked, so these are estimates based on historical data.
Understanding IB Grade Boundaries
The International Baccalaureate uses a sophisticated statistical process to set grade boundaries that ensure consistency across examination sessions. Each IB subject is assessed through multiple components - typically including externally assessed papers and internally assessed coursework.
Our predicted grade calculator uses historical grade boundaries from recent examination sessions, combined with the official weighting of each assessment component. While boundaries can vary slightly between sessions (typically by 2-3 percentage points), this provides students with a reliable estimate of their likely final grade.
The calculator is particularly valuable for identifying which assessment components have the greatest impact on your final grade. Since Internal Assessments often carry 20-25% of the total marks, improving these can significantly boost your predicted grade.
Remember that predicted grades are estimates based on your current performance. With focused revision and improvement in key areas, you can often exceed your predicted grade in the final examinations. Use this tool to identify where to focus your efforts for maximum impact.