IB Diploma (HL) Biology HL Grade Predictor 2026 (BIO-HL)

Unlike other boards, the IB doesn't publish real grade boundaries anywhere public — they're released only to schools via the IBIS/My IB portal. This predictor uses an unsourced estimate of typical grade bands, not official figures, so treat it as a rough guide only. The Biology HL grade-7 threshold has typically varied by about ±8 marks in that estimate. Ask your IB Coordinator for the real numbers.

Historically, IB Diploma (HL) Biology HL (BIO-HL) has needed around 115/144 marks for 7. The next grade down (6) typically opens at 98 marks. Enter your mock marks above to see exactly where your current performance sits and the gap to the next grade up.

Yes — enter the papers you've sat so far and leave the others blank. The tool scales your total proportionally to 144 marks (the full IB Diploma (HL) Biology HL BIO-HL mark total) and surfaces a partial-prediction warning so you know it's an estimate.

The IB Diploma (HL) Biology HL Grade Boundary Tracker shows you year-by-year published boundaries — useful for looking up a specific past paper's grade. The Grade Predictor takes your mock marks across all papers, combines them, and gives you a forward-looking prediction with marks-to-next-grade guidance.

IB Diploma (HL) Biology HL BIO-HL is assessed over 3 components: Paper 1 (MCQ + Data) (40 marks); Paper 2 (Short-answer + Extended) (80 marks); Internal Assessment (24 marks). The total for the qualification is 144 marks. Enter your marks per component above for the most accurate prediction.