How Are AP Classes Ranked by Difficulty in This Guide?
Any list of AP classes ranked by difficulty needs a stated measure. The one used here is the measure College Board publishes for every exam: the share of students who earned each score from 1 to 5. This guide ranks all 40 exams with 2026 results by the share of students scoring 3 or higher, lowest first. It then adds two more measures from College Board pages: the share of students earning a 5, and the college course each AP course is described as equivalent to.
One limit applies to every table below. Each exam is taken by a different group of students, so a result describes those students as well as the course. AP Calculus BC is the clearest case: 82% of its students scored 3 or higher in 2026 against 65% for AP Calculus AB, although College Board describes BC as equivalent to the AB college course plus the one after it. In our view, the results show how the students who chose a course performed, and the other two measures show how much the course asks.
Which AP Classes Had the Lowest Share of Scores of 3 or Higher in 2026?
AP Music Theory (59%), AP Statistics (62%), AP Computer Science Principles (63%), and AP Calculus AB (65%) had the lowest shares. The table lists all 40 exams from the lowest share to the highest. Exams with the same share are listed by their share of 5s, lowest first.
| AP exam | 3 or higher | Scored 5 | Scored 1 |
|---|---|---|---|
| AP Music Theory | 59% | 18% | 15% |
| AP Statistics | 62% | 17% | 21% |
| AP Computer Science Principles | 63% | 10% | 16% |
| AP Calculus AB | 65% | 20% | 11% |
| AP World History: Modern | 66% | 14% | 8% |
| AP Human Geography | 66% | 19% | 10% |
| AP Macroeconomics | 66% | 19% | 14% |
| AP Computer Science A | 66% | 25% | 23% |
| AP Art History | 67% | 15% | 9% |
| AP Microeconomics | 68% | 19% | 12% |
| AP Physics 1 | 68% | 19% | 17% |
| AP German Language and Culture | 68% | 24% | 10% |
| AP Environmental Science | 69% | 13% | 16% |
| AP Italian Language and Culture | 69% | 19% | 11% |
| AP Comparative Government and Politics | 70% | 15% | 12% |
| AP Biology | 71% | 15% | 8% |
| AP French Language and Culture | 71% | 15% | 6% |
| AP Spanish Literature and Culture | 71% | 20% | 9% |
| AP Physics 2 | 72% | 20% | 7% |
| AP Physics C: Mechanics | 72% | 20% | 11% |
| AP Japanese Language and Culture | 72% | 47% | 21% |
| AP English Literature and Composition | 73% | 16% | 11% |
| AP Latin | 73% | 20% | 10% |
| AP United States History | 74% | 14% | 8% |
| AP Psychology | 74% | 15% | 8% |
| AP European History | 74% | 16% | 8% |
| AP 3-D Art and Design | 75% | 7% | 2% |
| AP English Language and Composition | 75% | 15% | 10% |
| AP Physics C: Electricity and Magnetism | 75% | 24% | 8% |
| AP Chemistry | 76% | 15% | 6% |
| AP United States Government and Politics | 76% | 23% | 8% |
| AP African American Studies | 77% | 20% | 6% |
| AP Precalculus | 82% | 29% | 7% |
| AP Calculus BC | 82% | 46% | 4% |
| AP Drawing | 83% | 16% | 3% |
| AP Spanish Language and Culture | 83% | 21% | 3% |
| AP 2-D Art and Design | 85% | 12% | 3% |
| AP Chinese Language and Culture | 85% | 48% | 9% |
| AP Seminar | 88% | 10% | 2% |
| AP Research | 90% | 17% | 2% |
Most exams sit in a narrow band. Of the 40 exams, 27 had between 66% and 76% of students scoring 3 or higher, so a few points of difference between two courses says little. The year-by-year figures for each exam are in our guide to AP score distributions.
Which AP Classes Have the Lowest and the Highest Share of 5s?
The share of 5s gives a different order. The lowest shares in 2026 were in AP 3-D Art and Design (7%), AP Computer Science Principles (10%), AP Seminar (10%), AP 2-D Art and Design (12%), AP Environmental Science (13%), AP United States History (14%), and AP World History: Modern (14%). AP Seminar shows why both measures are needed: 88% of its students scored 3 or higher, and 10% earned a 5.
The highest shares of 5s were in AP Chinese Language and Culture (48%), AP Japanese Language and Culture (47%), AP Calculus BC (46%), AP Precalculus (29%), and AP Computer Science A (25%). College Board course pages for the modern AP language courses say students are typically in their fourth year of high school study, and that native or heritage speakers may follow a different pathway into the course. The results table does not separate those groups. AP Computer Science A had the highest share of 1s of any exam (23%), while 25% of its students earned a 5.
Which AP Classes Cover the Most Material?
College Board states which college course each AP course is equivalent to. Some are equivalent to a full year of college work and others to one semester.
| College equivalent | AP courses |
|---|---|
| Two semesters or one year | AP Biology, AP Chemistry, AP United States History, AP Art History |
| Two successive courses | AP Calculus BC (first-semester calculus and the single-variable calculus course that follows it) |
| One semester | AP Calculus AB, AP Statistics, AP Computer Science A, AP Computer Science Principles, AP Environmental Science, AP Psychology, AP Macroeconomics, AP Microeconomics, AP United States Government and Politics, AP Comparative Government and Politics, AP Physics 1, AP Physics 2, AP Physics C: Mechanics, AP Physics C: Electricity and Magnetism |
Recommended prerequisites are a further signal. Several AP courses are built on a course taken earlier.
| AP course | Recommended prerequisite |
|---|---|
| AP Biology | High school courses in biology and chemistry |
| AP Chemistry | High school courses in chemistry and Algebra II |
| AP Environmental Science | Two years of high school laboratory science and at least one year of algebra |
| AP Calculus AB and BC | Algebra, geometry, trigonometry, analytic geometry, and elementary functions (BC also lists sequences, series, and polar equations) |
| AP Physics 2 | AP Physics 1 or a comparable course, with precalculus taken or in progress |
| AP Physics C: Mechanics | Calculus taken or in progress |
| AP Physics C: Electricity and Magnetism | A calculus-based mechanics course, with calculus taken or in progress |
| AP Research | AP Seminar (required) |
In our experience at Oriel Admissions, the courses students find most demanding are the ones that cover a year of college work or rest on a demanding prerequisite: AP Chemistry, AP Biology, AP Calculus BC, and the two calculus-based AP Physics C courses. Their places in the results table, from AP Biology at 71% to AP Calculus BC at 82%, reflect how well prepared their students are as much as what the courses ask.
Which AP Classes Do Students Take First?
The five courses below have no recommended prerequisite or only early high school math, and College Board has described two of them in terms of younger students. In its 2021 results summary it described AP Human Geography students as primarily 9th graders, unlike other AP subjects, and it says students typically take AP Seminar in grade 10 or 11. Each school decides which grades may take which course.
| AP course | Recommended prerequisite | 3 or higher in 2026 | Our guide |
|---|---|---|---|
| AP Human Geography | None | 66% | AP Human Geography |
| AP World History: Modern | None | 66% | AP World History |
| AP Seminar | None | 88% | AP Seminar |
| AP Precalculus | Introductory algebra and geometry | 82% | AP Precalculus |
| AP Physics 1 | Geometry, with Algebra II taken at the same time | 68% | AP Physics 1 |
The year-by-year sequence is set out in our guides to the best courses for sophomore year and the best AP courses for junior year.
How Should a Family Use AP Classes Ranked by Difficulty?
Yale and Princeton describe what they look for in terms of the school a student attends, not a national table. Yale says it expects students to take advantage of AP courses only if their high school provides them, and that no student is disadvantaged for not using a resource that was not available. Princeton tells applicants to challenge themselves, whenever they can, with the most rigorous courses possible, such as honors, AP, and dual-enrollment courses. In the NACAC survey for fall 2023, 63.8% of 185 four-year colleges gave strength of curriculum considerable importance.
At Oriel Admissions we advise choosing AP courses by sequence and intended field of study, not by the results table: the most demanding courses the school offers in the core subjects, with As in nearly all of them. A low position in the table is not a reason to avoid a course that the next course depends on, and a high position does not make a course a strong choice for a student headed to a different field. How a schedule is judged against what the school offers is explained in course rigor in college admissions.
Exam length is a separate question, covered in how long AP exams are. Credit and placement for each score are decided by each college, and the AP Credit Policy Search from College Board lists the policies.
Our course guides also cover AP European History, AP Biology, AP Chemistry, AP Computer Science Principles, and AP Language and Composition. Related decisions are covered in our guides to the AP exam schedule, AP Calculus AB vs BC, whether AP scores matter, dual enrollment vs AP, and the AP Capstone Diploma.
Frequently Asked Questions About AP Classes Ranked by Difficulty
There is no single answer. On the 2026 exams AP Music Theory had the lowest share of scores of 3 or higher at 59%, followed by AP Statistics at 62%. In our experience at Oriel Admissions, AP Chemistry, AP Biology, AP Calculus BC, and AP Physics C are the most demanding courses.
No AP class is easy for every student. On the 2026 exams AP Research (90%) and AP Seminar (88%) had the highest share of scores of 3 or higher, and 17% and 10% of their students earned a 5.
By share of students, the most 5s in 2026 were in AP Chinese Language and Culture (48%), AP Japanese Language and Culture (47%), and AP Calculus BC (46%).
By share of students, the fewest 5s in 2026 were in AP 3D Art and Design (7%), followed by AP Computer Science Principles and AP Seminar at 10% each.
BC covers more. College Board describes AB as equivalent to a first semester college calculus course and BC as that course plus the one that follows it. In 2026, 82% of BC students scored 3 or higher and 65% of AB students did.
Each school decides. In its 2021 results summary College Board described AP Human Geography students as primarily 9th graders, and the course has no recommended prerequisite.
In the NACAC survey for fall 2023, 63.8% of 185 four year colleges gave strength of curriculum considerable importance. Yale says it expects students to take AP courses only if the high school provides them.
College Board published 2026 results for 40 exams. Two new courses, AP Business with Personal Finance and AP Cybersecurity, have exams on the May 2027 schedule.
Sources: College Board: 2026 AP Score Distributions, College Board: AP course pages, College Board: AP Human Geography Exam 2021 Results, College Board AP Central: How AP Capstone Works, College Board: 2027 AP Exam Dates, Yale Undergraduate Admissions: What Yale Looks For, Princeton Admission: Before You Apply, NACAC: Factors in the Admission Decision, fall 2023
About Oriel Admissions
Oriel Admissions is a college admissions consulting firm advising families nationwide on elite university admissions strategy, with offices in Princeton, New Jersey and New York. Our team brings deep expertise across every dimension of the application, and our distinctive 360 approach develops strategy, positioning, activities, essays, and interviews as one coherent whole. To discuss your family’s admissions strategy, schedule a consultation.
