Your diploma,
to the mark.
Build all six subjects plus TOK and the Extended Essay from your actual paper marks. Every grade is read off the boundaries for the session you choose, or off a forecast for November 2026, and your score out of 45 updates as you drag.
Marks in, grade out.
Each paper is scaled by its official weighting into a total. For subjects that total is a percentage; for TOK it is a mark out of 30 and for the Extended Essay out of 34. That total is read against a boundary table to give the grade, and the grades plus the TOK and Extended Essay core points make your score out of 45. Every failing condition is checked as you go.
The November 2026 forecast pools every published boundary set for each subject and weights recent and November sessions most. It shows how much a boundary tends to move, not how your exam will go. Read the guide. Always confirm anything that matters with your coordinator.