Astronomy Diploma Score Calculator
Paper 1
Raw Marks:
/ 30
Paper 2
Raw Marks:
/ 60
Practical Work
Raw Marks:
/ 24
Predicted mark
Predicted grade
1
0%
12 % pts
Markband table
1
0-11%
2
12-22%
3
23-31%
4
32-42%
5
43-53%
6
54-64%
7
65-100%
Astronomy Global Grade Distribution
Based on the May 24 session results for Astronomy
| Total Candidates | Mean | N | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 104 | 4.3 | 6.7% | 3.8% | 10.6% | 15.4% | 22.1% | 16.3% | 13.5% | 11.5% |
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 Astronomy marks should I enter?
Astronomy uses Paper 1, Paper 2, and Practical Work at SL. Please enter each score out of the maximum marks shown.
Is the Astronomy calculator only for Standard Level (SL)?
Yes, currently this tool only supports SL. Please use the SL components (Paper 1, Paper 2, and Practical Work) and SL Astronomy grade boundaries.
How much does Practical Work affect my Astronomy grade?
The Practical Work accounts for approximately 20% of your total Astronomy grade before boundaries are applied. Updating a predicted mark to a confirmed score will often improve the accuracy of your estimate more than adjusting individual paper scores.
The Ultimate All-in-One
IB Platform
All content on this website has been developed independently from and is not endorsed by the International Baccalaureate Organization. International Baccalaureate and IB are registered trademarks owned by the International Baccalaureate Organization.