How are AP exams scored? Raw to composite to a 1 to 5 result

AP (Advanced Placement) exams are scored in three steps: Your raw multiple-choice question (MCQ) score and raw free-response question (FRQ) score are combined into a weighted composite, and that composite is then converted to a 1 to 5 scaled score using cutoffs that change year to year.

This guide walks through each step, explains who scores your FRQs, and covers why the boundary for a 5 shifts from year to year. If you want to focus more on estimating your own result, our AP score calculator guide covers that in more depth. And for subject-specific studying, Cognito's AP Biology, AP Psychology, and other AP courses walk through the material the FRQs are marked against.

Your raw MCQ score is the number of questions you got right, out of the total for that section. AP exams don't penalise wrong answers, so blanks and wrong answers both score zero, and you should always guess rather than leave a question blank.

Your raw FRQ score is the sum of points awarded by human graders across all the free-response questions. Each question has a maximum point value (typically 4 points for short FRQs and 9 or 10 points for long FRQs), and the rubric lists specific things the answer needs to include to earn each point.

For AP Biology, that means 60 possible MCQ points plus a maximum of 34 FRQ points from 6 questions. For AP Chemistry, it's 60 MCQ plus 46 FRQ from 7 questions. The specific totals vary by subject; check the AP Central page for yours.

The two raw scores can't just be added together, because a raw MCQ point isn't the same as a raw FRQ point. College Board applies a weighting formula to combine them into a single composite score for the exam.

The weighting reflects how much each section counts toward your total. Most STEM and history subjects split 50/50 between MCQ and FRQ, so a raw MCQ score gets rescaled to be worth half the composite, and the raw FRQ score gets rescaled to be worth the other half.

AP Psychology is the notable exception among the major subjects: Its MCQ section is worth 66.7% and its FRQ section is worth 33.3%. So on psychology, doing well on multiple-choice moves the composite up faster than it would on biology.

The exact composite formula varies subject by subject and is published in the FRQ scoring guidelines College Board releases each year.

The composite score is then mapped onto the 1 to 5 scale using cutoffs set by College Board's psychometricians for that specific year's exam.

The 1 to 5 score is what shows up in your College Board account in July, and it's what colleges see. The raw and composite numbers aren't reported to you or to colleges.

AP cutoffs aren't fixed. If they were, a year with a harder-than-usual exam would produce artificially low scores across the board, and a year with an easier exam would inflate everyone's results.

College Board uses a process called equating to keep the scale consistent. Statisticians compare the current year's performance on shared anchor items (questions that appeared in previous years' exams) to work out how difficult this year's paper was. If it was harder than usual, the composite cutoff for a 5 gets moved down slightly; if easier, it moves up. The idea is that a 5 in 2026 should represent the same level of course mastery as a 5 in 2025 or 2024.

This is why any claim like "you need exactly 75% for a 5" should be hedged. Historically, cutoffs for a 5 tend to sit somewhere in the 65 to 75% range of the total composite, and cutoffs for a 3 often land around 40 to 55%, but the exact boundary varies year to year and subject to subject.

FRQs are marked at the AP Reading, a College Board event held each June. Thousands of readers gather (in person or virtually) to score every FRQ answer submitted that year.

Readers are a mix of experienced high school AP teachers and college professors who teach the equivalent introductory course. Each reader typically scores a single question or a small set of questions across the whole week, which means the same person marking your Question 3 has marked hundreds or thousands of other Question 3 answers by the end of it. Consistency across readers is enforced with rubrics, calibration exercises, and spot checks by more senior readers.

Every FRQ answer is marked at least once, and a random sample is second-marked to check for drift. If the two scores disagree by more than a set threshold, a third reader arbitrates.

Different subjects treat wording differently.

AP Biology rubrics are typically strict about specific vocabulary. A definition that says "a limiting factor is a factor that when in short supply restricts the rate of a reaction" usually needs those specific terms to earn full credit; "something that slows a reaction down" is often marked wrong even if the concept is right.

AP Calculus and AP Physics rubrics are more flexible about approach: They typically award marks for correct method even if you make an arithmetic error partway through, as long as your later working is consistent with the wrong number you carried forward.

AP History rubrics use point-based rubrics with specific evidence requirements. You need to make an argument, support it with specific historical evidence, and address counter-arguments.

Understanding which style your subject uses is one of the highest-leverage bits of exam prep. Practicing against the official scoring guidelines (published on AP Central) for past FRQs shows exactly what the readers are looking for.

Your 1 to 5 doesn't tell you where the points were lost. College Board publishes score distributions by subject (showing what percentage of students got each score) and general FRQ commentary, but not your specific answer-level breakdown. You won't know whether your 3 was a 3 by a wide margin or narrowly missed being a 4.

You can order an AP Score Report Add-on or request question-level feedback (score distributions per FRQ, plus general commentary) for a fee. It's rarely worth doing unless you're planning to retake the exam and want to know where to focus.