AP Precalc score calculator.
Enter your multiple-choice result, 0 to 42 correct, and a 0-to-6 score for each of the four free-response questions. This AP Precalc score calculator weights the two sections 62.5% and 37.5%, as College Board does for the 2027 AP Precalculus exam, and predicts your AP score. Other subjects: AP exam scoring calculator.
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How AP Precalc is scored for 2027: 62.5% and 37.5%
The 2027 exam structure has two sections.
Section I, multiple choice, comes in two timed parts. Part A gives you 29 questions and 65 minutes with no calculator, and on its own it counts for 43.75% of the score, more than all of the free response. Part B adds 13 questions in 40 minutes; a graphing calculator is required, though only some of the 13 need it, and the part counts for 18.75%. Section II is four free-response questions, two in each 35-minute part, and readers score every one out of 6 using College Board’s scoring guidelines, the rubric published after each exam. Questions 1 and 2 require a graphing calculator and questions 3 and 4 allow none; each one is weighted at 9.375% of the score.
| Part | Questions | Time | Weight |
|---|---|---|---|
| Multiple choice A, no calculator | 29 | 65 min | 43.75% |
| Multiple choice B, graphing calculator | 13 | 40 min | 18.75% |
| Free response A, graphing calculator | Q1 and Q2 | 35 min | 18.75% |
| Free response B, no calculator | Q3 and Q4 | 35 min | 18.75% |
Worked example: 24 right and 11 free-response points
Say you answer 24 multiple-choice questions correctly and score 4, 2, 3 and 2 on the free response, 11 points in all, close to the 2025 national average. Those raw points convert like this: your 24 right answers at 1.488 each give 35.7 and the 11 free-response points at 1.5625 each give 17.2, for a composite score of 52.9 out of 100. That’s a 4 on our lines, which put a 4 at 40.4 and a 5 at 55.7.
What one free-response point is worth
Each free-response point is worth 1.5625 composite points, a little more than one multiple-choice answer (1.488 on average). College Board’s weighting of the two multiple-choice parts differs slightly, though. It gives the 29 no-calculator questions 43.75% between them, about 1.509 each, and the 13 calculator questions 18.75%, about 1.442 each. Our calculator uses one box for all 42 at the average weight, which can put your composite off by 0.6 of a point at most, and only if every answer you got right came from Part A, or every one from Part B.
Exam format from College Board’s AP Precalculus exam overview and its student assessment page. Wrong multiple-choice answers cost no points.
The 2027 change: 42 multiple-choice questions, not 40
College Board revised the exam for May 2027.
Multiple-choice Part A grew from 28 to 29 questions while its time fell from 80 to 65 minutes, and Part B grew from 12 to 13 with the same 40 minutes. Both free-response parts went from 30 to 35 minutes. The structure of Question 2, on modeling a non-periodic context, changed too: College Board dropped its Part B(iii) and broadened Part C, with updated scoring guidelines to match. The exam now runs 2 hours 55 minutes, 5 minutes less than the 3 hours of 2024 to 2026, and the section weights didn’t move. Neither did the course content.
Why 9 of 12 AP Precalc calculators still count 40 questions
On October 7, 2026, we checked the AP Precalculus score calculators that show up on the first page of Google and Bing in the US. Nine of the 12 whose inputs we could read still score a 40-question multiple-choice section, the 2024 to 2026 exam, rather than the 42 multiple-choice questions of 2027, and none of the 16 pages explained that the format changed. A tool built for 40 questions gives each one 1.5625 points, so 30 right counts as 46.9 there; on the 2027 exam the same 30 is worth 44.6. Get 41 or 42 right and some of those tools won’t accept the number.
Using a 40-question exam from 2024 to 2026
Free-response questions from 2024 to 2026 still fit, since each one is scored out of 6 (Question 2’s later parts are scored differently now, so read an old Question 2 score as approximate). An older multiple-choice section has 40 questions instead of 42. Multiply your count by 1.05 and round to a whole number. A score of 30 out of 40 becomes 31.5, so enter 31 or 32. Either way the composite moves by less than a point.
The changes are listed in College Board’s 2026–27 clarifications and exam updates for the course and exam description (fall 2026 edition).
What percent is a 5 on AP Precalc?
There’s no official answer, because College Board keeps its Precalc score conversion, the composite needed for each score, private. What it does publish is the result. In 2026, 29% of students earned a 5. We built a simulated group of test takers from College Board’s free-response data and put our 5 cutoff at 55.7, the composite at which that group’s share of 5s comes out at 29%. Most calculators ranking for this search start a 5 at 67 instead; the method section shows what that line would do to the share of 5s.
| AP score | Composite on our lines | College Board’s label |
|---|---|---|
| 5 | 55.7 to 100 | Extremely well qualified |
| 4 | 40.4 to 55.6 | Very well qualified |
| 3 | 27.1 to 40.3 | Qualified |
| 2 | 18.1 to 27.0 | Possibly qualified |
| 1 | 0 to 18.0 | No recommendation |
Is a 70% a 5 on AP Precalc?
Yes. A composite of 70 is comfortably a 5, since our 5 line starts at 55.7. If you mean about 70% of each section, say 29 multiple-choice answers and 17 free-response points, that’s a composite of 69.7: also a 5.
What percent is a 4 on AP Precalculus?
On our lines the score range for a 4 runs from a composite of 40.4 up to just under 55.7, so roughly 40% to 56% of the points. With about 11 free-response points, 2025’s average, a 4 takes 16 correct multiple-choice answers.
Is 50% a 3 on AP Precalc?
A 50% composite is a 4 on our lines, not a 3. A 3 starts at 27.1 and a 4 at 40.4. The lines sit lower than many students expect, and that fits how generous Precalc’s 2026 results were, with 82% scoring 3 or higher.
Points you need for a 3, 4 or 5
Pick the row for the free-response points you expect, out of 24. Each column gives the minimum number of correct multiple-choice answers that reaches that score on our lines; a dash means no multiple-choice total gets you there.
| Free-response points (of 24) | For a 5 | For a 4 | For a 3 | For a 2 |
|---|---|---|---|---|
| 0 | 38 | 28 | 19 | 13 |
| 2 | 36 | 26 | 17 | 11 |
| 4 | 34 | 23 | 14 | 8 |
| 6 | 32 | 21 | 12 | 6 |
| 8 | 29 | 19 | 10 | 4 |
| 10 | 27 | 17 | 8 | 2 |
| 12 | 25 | 15 | 6 | 0 |
| 14 | 23 | 13 | 4 | 0 |
| 16 | 21 | 11 | 2 | 0 |
| 18 | 19 | 9 | 0 | 0 |
| 20 | 17 | 7 | 0 | 0 |
| 22 | 15 | 5 | 0 | 0 |
| 24 | 13 | 2 | 0 | 0 |
How many questions can you miss on AP Precalc?
If your free response lands near 11 of 24, you need 26 multiple-choice answers right for a 5, which leaves room for 16 misses. A 4 takes 16 and a 3 just 7. A perfect multiple-choice score with nothing else is 62.5, a 5; a perfect free response with nothing else is 37.5, a 3.
The four AP Precalculus FRQs
The four free-response questions (FRQs) are the same types every year, so you know what’s coming.
Question 1, Function Concepts, gives you functions in a table, on a graph or as an expression and asks how they behave, rates of change included. Question 2, Modeling a Non-Periodic Context, has you build and use a model for a real situation, often exponential, logarithmic or polynomial. Question 3, Modeling a Periodic Context, does the same with a sinusoidal function. Question 4, Symbolic Manipulations, is algebra with exponential, logarithmic and trigonometric expressions, done by hand. Questions 1 and 2 are the calculator part.
College Board’s free-response averages, 2024 and 2025
Question 4 has been the hardest both years, while students have earned roughly half the points on Questions 1 and 3. In 2025 the four averages added up to 10.73 of 24 points, 44.7%, up from 9.22 (38.4%) in 2024. The 2025 Question 2 still had Part B(iii), the piece College Board took out for 2027, and it averaged 0.06 of a point, so the new version may score a little differently.
| Question | 2024 average | 2025 average | Out of |
|---|---|---|---|
| 1. Function Concepts | 2.95 | 3.51 | 6 |
| 2. Modeling a Non-Periodic Context | 2.03 | 2.16 | 6 |
| 3. Modeling a Periodic Context | 2.96 | 3.13 | 6 |
| 4. Symbolic Manipulations | 1.28 | 1.93 | 6 |
Where students lost points
The chief reader reports for 2024 and 2025 point to the same handful of habits. Calculator answers have to be correct to three decimal places, and responses lost the point by rounding too early or stopping short. A right answer with no supporting work could earn nothing. End behavior has to be written in limit notation. In 2024 some responses mixed up “the function is increasing” with “its rate of change is increasing”, and the two explanation points on 2025’s Question 2 averaged 0.06 and 0.05 of a point. On the periodic question, turning a period or a phase shift from the story into the constants of a sine model cost the most. On Question 4, inverse trigonometric functions, log properties and an equation that’s secretly a quadratic in ex did the damage.
From College Board’s scoring statistics for 2024 and 2025, the chief reader reports for 2024 and 2025, and the 2026 questions with their scoring guidelines.
AP Precalculus score distribution, 2024 to 2026
Precalc is one of the most generous AP exams. In 2026, 29% of test takers earned a 5, 29% a 4, 24% a 3, 11% a 2 and 7% a 1, so 82% scored 3 or higher. Of the 40 AP exams in the 2026 data, only six had a higher pass rate (Calculus BC tied it), and only three gave a larger share of 5s: Chinese, Japanese and Calculus BC. Both numbers have risen every year since the exam was first administered in 2024, when 75.6% passed. The 2026 test-taker count and mean score aren’t out yet.
| Score | 2026 | 2025 | 2024 |
|---|---|---|---|
| 5 | 29% | 28.1% | 25.9% |
| 4 | 29% | 25.8% | 23.9% |
| 3 | 24% | 26.8% | 25.9% |
| 2 | 11% | 11.2% | 14.6% |
| 1 | 7% | 8.0% | 9.8% |
| 3 or higher | 82% | 80.8% | 75.6% |
| Students | not posted | 253,596 | 184,394 |
| Mean score | not posted | 3.55 | 3.42 |
A 3 is the usual passing score, and College Board’s own word for it is “qualified”; it keeps “extremely well qualified” for a 5. Colleges decide college credit and placement for themselves, and College Board’s AP credit policy search lists what a given school gives for Precalculus.
Shares from College Board’s Precalculus score distributions, the all-exam 2026 results (our ranking) and the AP score scale table.
Calculators on the AP Precalc exam
Two parts need a graphing calculator: the 13 calculator questions in multiple choice and free-response questions 1 and 2. For those parts Bluebook, the testing app, opens the Desmos graphing calculator, and you’re also allowed up to two handheld graphing calculators of your own, provided they’re on College Board’s approved list. You don’t have to clear their memory, but set them to radian mode. The other two parts allow no calculator, and College Board’s course description says most of the exam has to be done without technology, so the identities, log rules and unit circle values need to come from memory. Our AP Precalc formula sheet collects them by unit.
A hybrid exam: Bluebook plus a paper booklet
It’s a hybrid exam rather than a fully digital one. Everything appears on screen in Bluebook, but only the multiple choice is answered there; free-response work is handwritten in a paper booklet that goes back to College Board for scoring.
Calculator rules: College Board’s calculator policy and the course and exam description.
Which units the exam covers
Only three of the four units are on the exam. College Board’s weights apply to the multiple-choice section, and every question, free response included, draws its topics from Units 1 to 3. Unit 4, Functions Involving Parameters, Vectors, and Matrices, belongs to the course but isn’t assessed. Our AP Precalculus units guide walks through each one.
| Unit (College Board’s name) | Weight in the multiple choice |
|---|---|
| 1. Polynomial and Rational Functions | 30–40% |
| 2. Exponential and Logarithmic Functions | 25–40% |
| 3. Trigonometric and Polar Functions | 30–35% |
| 4. Functions Involving Parameters, Vectors, and Matrices | Not on the exam |
When is the 2027 AP Precalc exam?
The 2027 exam date is Tuesday, May 11, in Session 1, which for most US schools means an 8 a.m. local start time (your school confirms it). Plan on 2 hours 55 minutes of testing, an hour and 45 minutes of multiple choice and then an hour and 10 minutes of free response. Scores come out in July.
Date from the exam overview; start times from College Board’s start-time schedule; release month from its score page.
How this AP Precalc score calculator sets its lines
Your total composite score needs no guesswork. The calculator counts correct multiple-choice answers at 1.488 points each and free-response points at 1.5625 each, College Board’s section weights on a 100-point scale, so it can calculate the composite exactly. The AP score is the estimate. College Board releases Precalc’s score shares and its free-response averages, but neither the composite needed for each score nor any multiple-choice average. We generated 200,000 test takers whose four free-response scores match College Board’s 2025 average and spread question by question, and gave them a multiple-choice share equal to their free-response share, 44.7%, the same assumption our calculus calculators use. Our lines are the composites at which this group splits 29%, 29%, 24%, 11% and 7%, as 2026 did: a 5 from 55.7, a 4 from 40.4, a 3 from 27.1 and a 2 from 18.1.
That multiple-choice assumption carries most of the uncertainty. If Precalc students do 10 points better on multiple choice than on free response, every line moves up by about 4 to 8 points and a 5 starts near 63; at 15 points better, near 66. The 2 line is the least certain of the four. We’ll refit when College Board posts its 2026 free-response statistics.
Why AP Precalc calculators disagree
The calculators we checked on October 7, 2026, put a 5 between 65 and 72, most of them at 67, with cutoffs for a 3 at 42 and a 2 at 31. None of them says where those numbers come from, and they match no Precalc figure College Board has published. Run them on our simulated group and a line at 67 gives about 13% of students a 5 and 25% a 1, where College Board reported 29% and 7%. They’d only fit if multiple choice ran about 15 points ahead of free response.
Checked against College Board on October 7, 2026: the AP Precalculus exam page and its 2026–27 clarifications, the fall 2026 course and exam description, the calculator policy, College Board’s scoring statistics and chief reader reports for 2024 and 2025, the 2026 free-response questions and scoring guidelines, and the 2024 to 2026 score distributions. On score setting and equating: College Board’s score-setting page and its note on exam versions. Written by Mahmudul Hasan, October 2026.
Frequently asked questions
Answers drawn from College Board’s 2026–27 materials.
Is the AP Precalc exam curved?
Not against other students. The curve students talk about is really two College Board processes. Standard setting, which it calls Evidence Based Standard Setting, uses college faculty and performance data to fix what each score means; equating then makes a harder version of the exam need fewer composite points for the same final score. Cut scores can vary from year to year and are never published, which is why any Precalc calculator, ours included, is estimating.
Is there a guessing penalty on AP Precalculus?
No. Your multiple-choice score is the number of questions you got right; College Board doesn’t take points off for wrong answers and gives nothing for blanks. Answer every question.
What calculator do I need for AP Precalculus?
A graphing calculator for the two calculator parts, which College Board lists as graphing calculator required. Bluebook includes Desmos there, and you can bring up to two handheld models from College Board’s approved list. Set it to radians. In multiple-choice Part A and free-response Part B a calculator is not permitted.
How accurate is this AP Precalc score calculator?
The composite is exact, since it uses College Board’s weights. The estimated AP score is less certain: the lines match 2026’s score shares, but they depend on a multiple-choice average College Board doesn’t publish. If your composite lands within about 2 points of a line, either score is plausible.
Is Unit 4 on the AP Precalc exam?
No. Units 1, 2 and 3 are the only ones assessed. Unit 4 covers parameters, vectors and matrices; it’s taught as part of the course, but no exam question is written on it.
When do AP Precalculus scores come out?
In July 2027, on College Board’s score site. The exam itself is Tuesday, May 11, 2027.
Is a 3 a good score on AP Precalculus?
It’s a pass, and College Board labels it qualified. In 2026, 18% of students scored below a 3. Credit depends on the college, so check its policy before counting on it.
Can I use this calculator for an exam from 2024 to 2026?
Yes, with one adjustment: those exams had 40 multiple-choice questions. Multiply your count by 1.05 and enter the nearest whole number. Free-response scores carry over unchanged.