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IB ESS Grade Calculator

Estimate your predicted score for IB ESS using real IB grade boundaries and historical subject statistics.

ESS Diploma Score Calculator
Paper 1
25%

Raw Marks:

/ 35

Paper 2
50%

Raw Marks:

/ 60

Practical Work
25%

Raw Marks:

/ 30

Predicted mark
Predicted grade

1

Weighted score
0%
To next grade
12 % pts
Markband table

1

0-11%

2

12-22%

3

23-35%

4

36-45%

5

46-55%

6

56-65%

7

66-100%

ESS Global Grade Distribution

Based on the May 24 session results for ESS

Total CandidatesMeanN1234567
21,1084.23.2%1.5%8.2%22.1%25.3%23.4%11.5%4.8%
Historical Grade Trends

Frequently Asked Questions

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.

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.

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.

Boundaries are session-specific. The same weighted total can map to different grades under different May or November grade boundaries.

Environmental Systems and Societies uses Paper 1, Paper 2, and Practical Work at SL. Please enter each score out of the maximum marks shown.

Yes, currently this tool only supports SL. Please use the SL components (Paper 1, Paper 2, and Practical Work) and SL Environmental Systems and Societies grade boundaries.

The Practical Work accounts for approximately 25% of your total Environmental Systems and Societies 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.