IB grade boundaries, subject by subject

Pick a subject to see the percentage each grade needed in its most recent sessions, at SL and HL, with every paper’s weighting beside it.

Studies in language and literature

Language acquisition

Individuals and societies

Sciences

Mathematics

The arts

  • DanceSL and HL · May and November 2025
  • FilmSL and HL · May and November 2025
  • MusicSL and HL · May and November 2025
  • TheatreSL and HL · May and November 2025
  • Visual ArtsSL and HL · May and November 2025

Reading a boundary

A boundary is a percentage of the whole subject, not of one paper. Each paper and the internal assessment count by their weight.

Say Paper 1 is worth 36%, Paper 2 44% and the internal assessment 20%. Half marks on every one of them gives 50% overall. Full marks on the IA and half on both papers gives 60%. The boundary table then says which grade that is.

The grade calculator does this sum for you, with the real weights for your subject and level.

Questions

Then practice where the marks are

Exam-style questions for each topic of your syllabus, and a markscheme to mark them against.

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