0653_s26_gt — 2026 May-June Science Combined 0653 Grade Threshold · Cambridge CAIE IGCSE

This grade threshold document shows the minimum raw marks required for each grade (A*, A, B, C, D, E) in Cambridge IGCSE Science Combined (0653) for the 2026 May-June session. Grade boundaries vary between sessions depending on paper difficulty and candidate performance. Use these thresholds to calibrate how your practice scores translate into actual grades on this specific paper set.

Also referenced as: 0653_s26_gt · 0653/m/j/26 · 0653 May/June 2026

Grade thresholds apply to all paper components in this session. To estimate your overall grade, total your marks across all papers and compare against the threshold. Note that thresholds are session-specific — a score that earns an A in one session may only earn a B in another, depending on paper difficulty.

Use this grade threshold to set realistic targets for your Science Combined (0653) practice papers. If you're aiming for an A, check the A boundary for this session and work backwards to see which paper components need improvement. Grade boundaries for Cambridge IGCSE Science Combined typically fluctuate by 5–10 marks between sessions, so check multiple sessions to get an average target score.