Nature Of Science Diploma Score Calculator
Paper 1
Raw Marks:
/ 60
Paper 2
Raw Marks:
/ 45
Investigation
Raw Marks:
/ 28
Predicted mark
Predicted grade
1
0%
19 % pts
Markband table
1
0-18%
2
19-37%
3
38-45%
4
46-55%
5
56-65%
6
66-76%
7
77-100%
Nature Of Science Global Grade Distribution
Based on the May 24 session results for Nature Of Science
| Total Candidates | Mean | N | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 114 | 4.3 | 0% | 0% | 14% | 12.3% | 22.8% | 36.8% | 11.4% | 2.6% |
Historical Grade Trends
Frequently Asked Questions
How does the IB grade calculator work?
It combines the marks you enter for each assessment component using official IB weightings, then maps the weighted total to historical grade boundaries for the session you select.
How accurate are the grade predictions?
Predictions follow official weightings and past-session boundaries. Your live result can still differ if your exam session’s boundaries shift or if entered marks are estimates.
Should I enter predicted marks?
Yes when a component is not final yet. Replace estimates with confirmed IA, oral, or coursework marks as soon as you have them for a tighter prediction.
Why does changing the exam session change my grade?
Boundaries are session-specific. The same weighted total can map to different grades under different May or November grade boundaries.
Which Nature Of Science marks should I enter?
Nature Of Science uses Paper 1, Paper 2, and Investigation at SL. Please enter each score out of the maximum marks shown.
Is the Nature Of Science calculator only for Standard Level (SL)?
Yes, currently this tool only supports SL. Please use the SL components (Paper 1, Paper 2, and Investigation) and SL Nature Of Science grade boundaries.
Which Nature Of Science component should I change first when exploring my grade?
Stress-test Paper 1 first (about 40% weighting) or your least certain paper—those changes move the predicted Nature Of Science grade most.
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