How the AP Biology exam is scored
The exam is 3 hours long. Multiple choice (60 questions) is 50% of your score and free response is 50%. The free response has six questions: two worth 9 points and four worth 4. Each part is scaled by its weight and added into a composite out of 100, which is then converted to a score from 1 to 5.
What does it take to get a 5?
About 72 of 100 composite points, by our estimate. One way to get there is roughly 44 of 60 multiple choice questions right and 25 of 34 free-response points. A 4 takes about 59 points and a 3 about 46. In 2026, 15% of students earned a 5 and 71% earned a 3 or higher.
Where students lose points
Free response is half the score: two long questions at 9 points and four short ones at 4. Many of them hand you an experiment, so practice naming the independent and dependent variables, the control, and what the data actually show. When a question says "justify," back the claim with numbers from the prompt.
