AP Precalculus exam review: format, the units tested, and how to study
The AP Precalculus exam is 42 multiple-choice questions and 4 free-response questions in 2 hours 55 minutes. Only Units 1–3 are given exam weighting, the four free-response questions have fixed types you can prepare for by name, and no formula sheet is provided.
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What’s on the AP Precalculus exam
The exam runs 2 hours 55 minutes across two sections. Section I is 42 multiple-choice questions worth 62.5% of your score; Section II is 4 free-response questions worth 37.5%. Each section has one calculator part and one without.
| Part | Questions | Time | Calculator | Weight |
|---|---|---|---|---|
| Section I, Part A | 29 questions | 65 min | No calculator | 43.75% |
| Section I, Part B | 13 questions | 40 min | Graphing calculator required | 18.75% |
| Section II, Part A | 2 questions | 35 min | Graphing calculator required | 18.75% |
| Section II, Part B | 2 questions | 35 min | No calculator | 18.75% |
Those part weights are worth reading twice. The no-calculator multiple choice alone is 43.75% of the exam — more than the entire free-response section.
The count and timing changed. College Board updated the number of multiple-choice questions, free-response questions 1 and 2, and the timing of each section, effective with the May 2027 exam. Older guides still describe a 40-question, 3-hour paper, so check the question count on anything you revise from.
The four free-response questions
Unlike most AP exams, you know exactly which four questions you will face. Their types are fixed and published in advance.
| Question | Type | Calculator |
|---|---|---|
| 1 | Function Concepts | Calculator required |
| 2 | Modeling a Non-Periodic Context | Calculator required |
| 3 | Modeling a Periodic Context | No calculator |
| 4 | Symbolic Manipulations | No calculator |
No formula sheet is provided. Like the AP Calc AB exam, Precalculus expects the formulas memorised, so our AP Precalculus formula sheet is a study reference, not something you carry in. The exam is a hybrid: you answer the multiple-choice and read the free-response prompts in the Bluebook app, but you handwrite your free-response work on paper. On the calculator parts you can use your own graphing calculator or the Desmos tools built into Bluebook.
The tested units of AP Precalculus
The course has four units. College Board assigns exam weighting to the first three only, and those weightings describe the multiple-choice section rather than the whole paper. Each unit centres on a family of functions. The ranges below are College Board’s own published weightings.
How AP Precalculus is scored
Your multiple-choice and free-response points combine into one composite score, which College Board scales to a 1–5 each year. In 2026, 82% of students scored a 3 or higher and 29% earned a 5. The exam has also grown quickly since it began: College Board recorded 184,394 candidates in its first year, 2024, and 253,596 in 2025. Figures for 2026 candidate numbers have not been published yet.
What separates a 3 from a 5 is the free response, where partial credit is real: setup, notation and clear working each earn points on their own, so a question you cannot finish is still worth writing out. To see what a practice raw score becomes, run it through our AP Precalculus score calculator.
Who AP Precalculus is for
It is a fair question, and it comes up constantly: if the early material overlaps Algebra II, why sit the exam? Two things are worth knowing before you decide.
The course is not only calculus preparation. College Board positions it as a way to strengthen general maths readiness across several STEM pathways, not purely as a feeder into AP Calculus. Students who do not intend to take calculus at all are part of the intended audience.
What it adds beyond Algebra II is mostly in how functions are analysed. Average rate of change and concavity in Unit 1, semi-log plots and residuals for judging a model in Unit 2, and formal work with sinusoidal parameters in Unit 3 are the parts that are genuinely new, and the parts that carry into calculus and statistics.
Whether a score earns you anything at a particular college is a separate question, and the answer varies a great deal by institution — check each one rather than assuming. Our AP college credit guide covers how to look it up.
How to study for AP Precalculus
Because no formula sheet is provided, start by memorising the toolkit: the quadratic formula, the log properties, the unit circle, and the sinusoidal and exponential models. Our formula sheet has the ones worth knowing, grouped by function family.
Then build fluency with each of the three tested function families and practise moving between their graphs, equations and tables. Because the four free-response types are fixed, practise them by name — a periodic modelling question and a symbolic manipulation question will be on your paper whatever else happens. Drill one unit at a time with the AP Classroom AP Precalculus Progress Check answers.
When the exam is held, and how long it takes
AP Precalculus is given once a year during College Board’s May testing window, and the exam takes 2 hours 55 minutes. The next administration is Tuesday, 11 May 2027, in Session 1. Start times are set by your school, so confirm the schedule with your AP coordinator before you plan around it.
Frequently asked questions
Common questions about the Precalculus exam.
How many questions are on the AP Precalculus exam?
42 multiple-choice questions and 4 free-response questions, split into two sections. The multiple choice is worth 62.5% of your score and the free response 37.5%.
How long is the AP Precalculus exam?
2 hours 55 minutes: 1 hour 45 minutes for the 42 multiple-choice questions and 1 hour 10 minutes for the 4 free-response questions.
What are the four AP Precalculus free-response questions?
They have fixed types every year. Question 1 is Function Concepts and Question 2 is Modeling a Non-Periodic Context, both with a graphing calculator. Question 3 is Modeling a Periodic Context and Question 4 is Symbolic Manipulations, both without one.
Is a calculator allowed on the AP Precalculus exam?
Partly. A graphing calculator is required on Part B of the multiple choice and Part A of the free response; the other parts of each section are no-calculator.
Is a formula sheet provided on the AP Precalculus exam?
No. Like the AP Calculus exams, AP Precalculus gives you no reference sheet, so you are expected to have the formulas memorised.
How many units are on AP Precalculus, and which are tested?
Four units are taught. College Board assigns exam weighting to Units 1–3 only — polynomial and rational, exponential and logarithmic, and trigonometric and polar functions — and none of the four free-response questions covers Unit 4.
What percentage is a 5 on the AP Precalculus exam?
There is no fixed percentage. College Board rescales the raw-to-1–5 conversion every year, so the cut-off moves. Run a practice raw score through our AP Precalculus score calculator to see roughly where it lands.
Is AP Precalculus hard?
It is one of the more passable AP exams — 82% of students scored a 3 or higher in 2026 — but it assumes a strong algebra foundation and moves through several function families.