AP Biology Score Calculator
Enter your multiple-choice and free-response points
Frequently Asked Questions
60 multiple-choice questions make up 50% of the composite score (75 points). 6 free-response questions — 2 long-form (worth 10 and 8 points) and 4 short-form (4 points each) — make up the other 50% (75 points), for a total composite of 150.
Roughly 113 or more out of 150 composite points typically earns a 5. A 4 usually starts around 92, and a 3 around 71.
6 total: 2 long-form questions (worth more points, usually 8-10) and 4 short-form questions (usually worth 4 points each). All 6 combined are scaled to 50% of your composite score.
No. College Board does not publish exact current-year cutoffs before scores are released. This calculator uses recent historical data for an estimate.
AP Biology composite score formula
| Section | Questions | Composite weight |
|---|---|---|
| Multiple choice | 60 questions | 75 points (50%) |
| Free response | 2 long (10, 8 pts) + 4 short (4 pts each) | 75 points (50%) |
| Total composite | — | 150 points |
Approximate AP score cutoffs (recent years)
| AP Score | Composite (out of 150) |
|---|---|
| 5 | 113+ |
| 4 | 92–112 |
| 3 | 71–91 |
| 2 | 50–70 |
| 1 | below 50 |
Example: 45 MCQ correct (out of 60) and 24 FRQ points (out of 34) gives a composite of (45/60)×75 + (24/34)×75 = 56.25 + 52.9 = 109.2 — in the 4 range, just below the 5 cutoff.