AP Biology Score Calculator
Estimate your AP Biology score and find out what raw score earns a 5.
How this estimate works: AP Biology combines 60 multiple-choice questions (~50% of the composite) with the free-response section (2 long + 4 short free-response questions, ~50%). The 1-5 cut-offs shown are estimates for the 2025-26 cycle, not official College Board cut scores.
AP Bio score cut-offs (estimated)
| Score | Composite needed | Recent share of students |
|---|---|---|
| 5 | 70%+ | 9% |
| 4 | 58%+ | 23% |
| 3 | 45%+ | 37% |
| 2 | 32%+ | 24% |
| 1 | below 32% | 7% |
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Frequently asked
- What is a good score on AP Biology?
- A 3 is generally considered passing and is the most common credit threshold, a 4 is strong, and a 5 is the top score. On AP Biology, an estimated 70% composite reaches a 5 and 45% reaches a 3 in a typical year.
- How is AP Biology scored?
- Your raw multiple-choice and free-response points are combined into a weighted composite (multiple choice is about 50% and free response about 50% of the score), then mapped to the 1-5 scale. The exact mapping changes slightly each year, so this tool gives an estimate.
- Is this the official AP Bio curve?
- No. College Board does not publish exact annual cut scores. These thresholds are estimates based on publicly released scoring worksheets and recent score distributions, updated for the 2025-26 cycle.
- When do AP scores come out?
- AP exams are taken in May and scores are typically released in early-to-mid July. Use this calculator before scores drop to estimate where you are likely to land.