IB Math Applications & Interpretation HL 2025 Grade Boundaries Guide
If you are staring at your IB Math AI HL scores and thinking, “What do I actually need for a 6 or 7?”, you are not alone. Parents feel the same way when they try to match raw marks to diploma points and university offers.
Grade boundaries can look like a wall of numbers. In reality, they are a simple tool that tells you how your IB Mathematics: Applications and Interpretation HL 2025 marks turn into a final 1 to 7 grade.
This guide uses the official May 2025 grade boundaries, explains how they work for each paper and the IA, and shows how they are likely to compare to November 2025. By the end, you will know what scores you are aiming for, how your papers combine, and how to plan smart targets instead of guessing.
What Are IB Grade Boundaries and Why Do They Matter for Math Applications and Interpretation HL 2025?
Grade boundaries are the score ranges that match each IB grade from 1 to 7. For example, the IB might say that, for Math AI HL, a total score of 77 to 100 earns a 7, 65 to 76 earns a 6, and so on.
These ranges are set after the exams. The IB looks at how hard the papers were and how students did worldwide, then chooses boundaries that keep grades fair from year to year. That is why boundaries can move slightly each session.
They matter a lot because they decide:
- Your final course grade in Math AI HL
- Your diploma points total
- Whether you hit university entry requirements that ask for, say, “6 in HL Math”
Using the May 2025 data gives you a solid reference for planning, even if November 2025 boundaries shift a little.
How IB grade boundaries turn raw marks into a final 1 to 7 grade
Here is the basic process for Math AI HL:
- You earn raw marks on each component:
- Exploration (IA), out of 20
- Paper 1, out of 110
- Paper 2, out of 110
- Paper 3, out of 55
- Each part is worth a share of the course:
- IA: 20%
- Paper 1: 30%
- Paper 2: 30%
- Paper 3: 20%
- The IB scales these marks to create a final score out of 100.
- That final number is matched to the overall grade boundaries, for example 77 or more gives a 7.
A quick simple example: imagine a student ends up with a final scaled score of 68 out of 100. Looking at the May 2025 overall boundaries, 65 to 76 gives a 6, so that student earns a 6 in Math AI HL.
Why grade boundaries change from year to year
Grade boundaries are not set once and then left forever. They move because each exam session is slightly different.
If a Paper 2 turns out harder than expected and many students score lower, the boundary for a 7 might drop a little. For example, in one year a 7 might start at 83 marks on Paper 1, but in another year it might start at 81 if the paper is judged tougher.
These changes are usually small. The May 2025 boundaries give a strong guide for what to expect in November 2025, especially if you add a small safety margin to your targets.
IB Math Applications and Interpretation HL May 2025 Grade Boundaries Explained
The official May 2025 boundaries for Math AI HL give clear target ranges for each grade. Here is the overall picture first.
Overall 2025 grade boundaries: what you need for a 7, 6, 5, or pass
Your final overall score is out of 100. For May 2025, the boundaries are:
| Grade | Mark range (out of 100) | Simple meaning |
|---|---|---|
| 7 | 77–100 | Top performance |
| 6 | 65–76 | Strong, often enough for many courses |
| 5 | 52–64 | Solid understanding |
| 4 | 39–51 | Passing level for diploma in most cases |
| 3 | 28–38 | Below typical pass, often a warning sign |
| 2 | 15–27 | Very weak performance |
| 1 | 0–14 | Almost no success on assessed material |
If you want a 7, you should aim a bit above 77 to stay safe. For many students, the key goal is at least a 4, since HL subjects usually need a 4 or higher to count toward the diploma.
A helpful way to model different mark mixes is to use an IB score calculator that uses May 2025 data, such as the one at StudyMarker’s IB calculator.
Exploration (IA) grade boundaries in 2025 and why this 20 marks matter so much
For the IA (out of 20 marks), May 2025 boundaries are:
- 7: 17 to 20
- 6: 15 to 16
- 5: 12 to 14
- 4: 9 to 11
- 3: 6 to 8
- 2: 3 to 5
- 1: 0 to 2
Because the IA has only 20 marks, one or two marks can shift your grade band. Going from 14 to 15 moves you from a 5 to a 6.
The IA is also in your control. You write it over time, not in exam conditions, so you can draft, get feedback, and refine. A strong IA can lift your overall grade and make up for a slightly weaker exam paper.
Paper 1 and Paper 2: 2025 grade boundaries and what a strong exam score looks like
Paper 1 and Paper 2 are each out of 110 marks, and in May 2025 they share the same boundaries:
- 7: 83 to 110
- 6: 70 to 82
- 5: 55 to 69
- 4: 42 to 54
- 3: 31 to 41
- 2: 17 to 30
- 1: 0 to 16
Roughly speaking, a 7 on these papers is around three quarters of the marks or more. A 6 is close to two thirds.
On a typical question worth 6 marks, a student in the 6 band might drop 2 marks here and there but still show good method and reasoning. Strong performance on these two big exams can easily balance an IA that is only in the 5 band.
Paper 3 in 2025: higher level challenge and its grade boundaries
Paper 3 is out of 55 marks. May 2025 boundaries are:
- 7: 42 to 55
- 6: 35 to 41
- 5: 28 to 34
- 4: 21 to 27
- 3: 15 to 20
- 2: 8 to 14
- 1: 0 to 7
The questions are fewer, but each mark carries more weight. Paper 3 often tests deeper modeling and interpretation. Many students find it stressful because small mistakes can cost several marks.
Knowing that a 7 starts at 42 means you can set clear goals in practice, for example “I want to reach at least high 30s in timed Paper 3 practice, then push into the 40s.”
How Your IA and Exam Papers Combine: Simple 2025 Mark Calculation Examples
Now that you have the boundaries, it helps to see how numbers actually combine into a final grade.
Example: A realistic path to a grade 7 in IB Math Applications and Interpretation HL
Imagine this student:
- IA: 18 out of 20
- Paper 1: 85 out of 110
- Paper 2: 88 out of 110
- Paper 3: 42 out of 55
Step 1: Turn each into a percentage
- IA: 18 ÷ 20 = 90%
- Paper 1: 85 ÷ 110 ≈ 77%
- Paper 2: 88 ÷ 110 ≈ 80%
- Paper 3: 42 ÷ 55 ≈ 76%
Step 2: Apply the weightings
- IA: 90% of 20% ≈ 18 points
- Paper 1: 77% of 30% ≈ 23 points
- Paper 2: 80% of 30% ≈ 24 points
- Paper 3: 76% of 20% ≈ 15 points
Step 3: Add them
18 + 23 + 24 + 15 = about 80 points out of 100.
From the overall boundaries, 77 to 100 is a 7, so this student earns a grade 7.
Notice that none of the components are perfect. The student is simply solid across the board. A strong IA and good Paper 3 score help keep the total high even if Paper 1 is not in the 80s.
Example: How small changes in marks can move you from a 5 to a 6
Now consider a student on the border between a 5 and a 6:
- IA: 14 out of 20 (top of the 5 band)
- Paper 1: 65 out of 110
- Paper 2: 63 out of 110
- Paper 3: 30 out of 55
If you scale these, the total might land around 60 out of 100. That sits in the 5 range, since 52 to 64 is a 5.
What happens if the student improves a little in several places?
- IA: from 14 to 16 out of 20
- Paper 1: from 65 to 70 out of 110
- Paper 2: from 63 to 68 out of 110
- Paper 3: from 30 to 33 out of 55
These are small jumps, often just one more method mark on a few questions. When scaled, the overall could move to around 66 out of 100. That falls in the 6 band (65 to 76).
This shows why fixing common mistakes and pushing for 2 or 3 extra marks on each paper can change your final grade, not just your raw score.
What To Expect From November 2025 Grade Boundaries and How To Plan Now
The IB has not released November 2025 grade boundaries yet, but they are likely to stay close to the May 2025 ranges.
Why November 2025 grade boundaries will be similar, but not identical, to May 2025
Several factors can make boundaries shift a little:
- How hard the November papers feel compared to May
- How the global group of students performs
- Any changes in question style or focus
If a November paper is slightly easier, boundaries might rise by a mark or two. If it is harder, they might fall. These moves are usually small, so May 2025 numbers are still a strong planning base.
To stay safe, think in terms of targets above the minimum. For example, if the 7 boundary starts at 77, aim for at least 80 in practice.
How to set safe score targets for November 2025 using May 2025 data
Here is a simple way to turn the May data into clear goals:
- Decide the overall grade you want.
- Take the bottom mark of that band from May 2025.
- Add a few extra points as a safety buffer.
For example, if you want a 6, the band starts at 65. Aim for around 70 or a bit more out of 100.
Then break that down by component:
- IA: aim for at least 15 or 16 out of 20
- Paper 1: aim for around 75 or more out of 110
- Paper 2: similar to Paper 1, around 75 or more
- Paper 3: aim for low to mid 30s out of 55
These are not the only ways to reach a 6, but they give you clear practice targets. You can adjust based on your strengths, for example pushing higher in IA if you find exams stressful.
Conclusion
The May 2025 grade boundaries for IB Math Applications and Interpretation HL show that a 7 starts at 77 out of 100, a 6 at 65, and a 5 at 52, with clear ranges for every grade down to 1. Your IA, Paper 1, Paper 2, and Paper 3 all feed into that final score, and even a few marks on each part can move you up a whole band.
Use the May 2025 boundaries as your map for both May and November sessions, add a small safety margin, and turn them into concrete score targets for each paper and for your IA. Grade boundaries are not here to scare you; they are a tool to make your study plan sharper and your goals clearer.
Take these numbers, set your targets, and let every practice paper bring you a little closer to the grade you want.