AP® Calculus AB Score Calculator
Enter your practice results to estimate your AP® Calculus AB score. Updated for May 2027, when multiple choice drops to 42 questions.
Last checked 2026-10-24
Free response: add up your rubric points across all 6 questions (each is out of 9).
How the AP® Calculus AB composite is calculated
Each section is converted to a percentage and weighted using the College Board's published exam weights:
| Section | Format | Weight |
|---|---|---|
| Multiple choice | 42 questions, 1 hr 40 min | 50% |
| Free response | 6 questions × 9 points, 90 min | 50% |
Each multiple-choice question is worth about 1.19 composite points and each free-response point about 0.93, so one more correct multiple-choice answer moves you slightly more than one rubric point.
The weighted composite (0–100) is compared with estimated score cutoffs:
| AP® score | Estimated composite |
|---|---|
| 5 | 64 and above |
| 4 | 51–63 |
| 3 | 39–50 |
| 2 | 30–38 |
| 1 | Below 30 |
These cutoffs are estimates based on past AP® Calculus AB exams. The College Board doesn't publish its raw-score conversion and adjusts it each year. If you're within 3 points of a boundary, the calculator shows both possible scores.
Source for the exam format: the College Board's official exam page.
Frequently asked questions
What is the AP Calculus AB exam format for 2027?
Section I is 42 multiple-choice questions in 1 hour 40 minutes (29 without a calculator, 13 with a graphing calculator), worth 50%. Section II is 6 free-response questions in 90 minutes (2 with a calculator, 4 without), worth 50%.
How are the free-response questions scored?
Each of the 6 free-response questions is scored out of 9 points, for 54 points total. Together they're half your score.
What percentage do you need for a 5 on AP Calculus AB?
Historically about 64% of the composite for a 5, about 51% for a 4 and about 39% for a 3. These are estimates from released exams; the real cutoffs shift each year.
Did the AP Calculus exam change for 2027?
The number of multiple-choice questions and the timing were updated for May 2027. Course content didn't change. Calculators that still assume 45 multiple-choice questions are out of date.