The difference between IB Physics HL vs SL is significant in scope, depth, and mathematical sophistication, not just difficulty. HL contains all SL content plus additional higher-level material.

Key Differences:

  • Teaching Hours: SL = 150 hours, HL = 240 hours.

  • Syllabus Size: HL has approximately 60% more content, including entire additional topics (e.g., Wave Phenomena, Fields, Quantum Physics).

  • Mathematical Rigor: HL requires more advanced calculus and problem-solving.

  • Option Topics: Both choose one, but HL options are more complex.

  • Assessment: HL has an extra Paper 3 focusing on the option topic and data analysis.

Choose HL only if required for university (engineering, physics) and if you have strong math skills and a genuine interest.


Deciding between IBDP Physics HL vs SL? Our IBDP physics tutors can assess your readiness and provide targeted support to master the demanding HL curriculum or ace SL.