How the AP Calculus AB exam is scored
The exam is 3 hours and 10 minutes long. Multiple choice (42 questions) is 50% of your score and free response is 50%. The free response has six questions worth 9 points each. 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 63 of 100 composite points, by our estimate. One way to get there is roughly 27 of 42 multiple choice questions right and 35 of 54 free-response points. A 4 takes about 51 points and a 3 about 40. In 2026, 20% of students earned a 5 and 65% earned a 3 or higher.
Where students lose points
Free response is half the score: six questions at 9 points each, two of them with a calculator. Graders give credit for setup, so write the integral or derivative you are evaluating even when the calculator does the work. Missing units and missing justification ("because f' changes from positive to negative") are where most points drop.
