What's on the AP US History exam comes down to two things: nine historical periods, and four scored task types. If you know the weights, you can spend your time where the exam puts the most points. AP United States History, often called APUSH, gives only 4% to 6% each to Period 1 and Period 9, but 10% to 17% each to six middle periods. That should shape your plan.
If you want a low-cost way to study by unit, the $5 study guide shows a 55-page printable PDF built from the official units and weights, with sample questions you can try first. This post breaks down the units, the section types, the May 2027 changes, and when the guide or course makes more sense.
The units you need to know, and what the weights mean
If you are asking what's on the AP US History exam, start with the periods. The exam is built around nine periods, from 1491 to the present. The table below shows the official unit weights.
| # | Unit | Share of exam |
|---|---|---|
| 1 | Period 1: 1491–1607 | 4%–6% |
| 2 | Period 2: 1607–1754 | 6%–8% |
| 3 | Period 3: 1754–1800 | 10%–17% |
| 4 | Period 4: 1800–1848 | 10%–17% |
| 5 | Period 5: 1844–1877 | 10%–17% |
| 6 | Period 6: 1865–1898 | 10%–17% |
| 7 | Period 7: 1890–1945 | 10%–17% |
| 8 | Period 8: 1945–1980 | 10%–17% |
| 9 | Period 9: 1980–Present | 4%–6% |
The big pattern is simple. Period 1 and Period 9 are the lightest, at 4% to 6% each. Period 2 is still lighter than the middle of the course, at 6% to 8%. The center of the exam is Periods 3, 4, 5, 6, 7, and 8. Each of those can make up 10% to 17% of the exam.
That does not mean you should skip the lighter periods. It means you should not give them the same amount of time as the heaviest ones. If your study time is limited, most of it should go to the six middle periods. That is also how the $5 study guide is organized: one chapter per official unit, with the heaviest-weighted units first.
That order helps when you are short on time. You can cover the likely high-value material earlier instead of treating every period the same. The guide also includes 2-, 4-, and 8-week study plans built from the exam weights, so your schedule lines up with how the test is scored, not just with the calendar.
How to split your time across the nine periods
The unit weights tell you how to study, not just what to study. A common mistake is to move through APUSH in strict date order and give each period equal time. That feels neat, but it does not match the exam.
A better plan is to group the periods by weight. Periods 3 through 8 deserve the biggest share of your review because each one counts for 10% to 17%. Those six periods cover the American Revolution and early republic, expansion and reform, the Civil War and Reconstruction era, industrial growth, the world wars, and the post-1945 period up to 1980. That is where most of your points can come from.
Then give shorter review blocks to Period 2, at 6% to 8%, and the lightest blocks to Periods 1 and 9, at 4% to 6% each. This is one reason the printable guide works well if you want a fast plan. The AP United States History printable guide has one chapter per unit, 252 key terms with an example for each, and a 2-page cram sheet for the night before.
If you want to test your balance before you buy anything, use the free practice test. It has 25 original questions that follow the official course units and weights, with explanations. That makes it a quick way to see whether your weak spots are in the heavy middle periods or in the lighter bookend periods.
Exam sections, question types, and score share
Knowing the content periods is only half the job. You also need to know how the exam asks you to show that knowledge. The AP United States History exam has four scored parts.
| Section | Questions or tasks | Share of score |
|---|---|---|
| Multiple choice | 55 questions | 40% |
| Short answer | 3 tasks | 20% |
| Document-based question | 1 task | 25% |
| Long essay | 1 task | 15% |
Multiple choice is the largest share of the score at 40%, with 55 questions. Short answer is 20% of the score and has 3 tasks. The document-based question, usually called the DBQ, is 25%. The long essay is 15%.
That mix matters. More than half of your score comes from writing, not just picking an answer. So your prep should include both content review and written practice. The $19 AP United States History prep course is stronger than a guide alone if you want repeated practice in different formats, because it includes 10 chapters, 79 lessons, 81 quizzes, 54 interactive labs, plus a timed final practice exam and a final exam, each with a written part and a scoring guide.
If you prefer to study on paper first, the guide still covers exam-style practice. It includes 45 practice questions with every answer explained and flags common exam traps. After that, the free AP score calculator can help you estimate a 1 to 5 score from your raw points by section. It is only an estimate, not an official conversion, but it is useful for seeing which section is pulling your score down.
The AP US History study guide: $5, instant PDF
55 printable pages built from the official units, heaviest first: 252 key terms with examples, 45 practice questions with every answer explained, a 2-page cram sheet and 2-, 4- and 8-week study plans. Try 10 free sample questions on the page first.
See the AP US History guide →What changed for the May 2027 exam
For May 2027, the unit weights stay the same as 2026, but the short-answer and long-essay setup changes. That matters because older APUSH advice may describe a different format.
In May 2026, students saw 4 short-answer questions but answered 3. Question 3 and Question 4 had no stimulus, and you chose one of them. Students also had a choice of 3 long essay prompts.
For 2027, there are 3 required short-answer questions, and all of them use sources. There is also 1 required long essay. So the exam gives you less choice than the 2026 version. You need to be ready for every short-answer task and for the single required long essay, not just the prompt type you like best.
No 2027 scoring guidelines exist yet. The available point structure comes from the 2026 scoring guidelines and the updated rubrics in the official course and exam description, which keep the rubrics unchanged: DBQ 7 points, LEQ 6 points, and sample SAQ 3 points. The 2027 non-text source SAQ is treated as 3 points based on those materials.
This is one reason the $19 prep course stands out if you want materials that match the new version. It is built for the May 2027 exam. If you only need a content refresher by unit, the guide is still useful, since the official units and weights did not change.
How the $5 guide lines up with the exam
The $5 guide is the simpler option. It is a one-time purchase, instant download, and a printable PDF of 55 pages. For many students, that is enough when the main need is to sort the course into clear units and focus on the heaviest parts first.
Its structure matches the exam in a direct way. It has one chapter per official unit, and the chapters are ordered heaviest-weighted first. That means your first study blocks go where the exam puts the most points. It also includes 252 key terms, each with an example, 45 practice questions with every answer explained, common exam traps flagged, and a 2-page cram sheet for the night before.
The guide is a good fit if you want to print your notes, move fast, and keep the cost low. It is also easy to sample before you buy, because the $5 study guide includes 10 free sample questions.
Cost is another reason some students start here. The guide is $5 once. If later you decide you want the course too, guide plus course is $24 total, since $5 + $19 = $24.
If you are comparing this subject with others, the AP prep hub page helps you see the rest of the AP lineup. If you need only APUSH right now, though, the guide is the cheapest direct way to review the units and weights.
When the $19 course, or an AP plan, makes more sense
The $19 course makes more sense than the guide alone when you want more than a printable summary. It is still a one-time purchase, but it adds depth: 10 chapters, 79 lessons, 81 quizzes, 54 interactive labs, and both a timed final practice exam and a final exam, each with a written part and a scoring guide. If you learn best by doing, not just reading, that extra practice can matter.
It is also the cleaner choice if your biggest concern is the updated exam format. The course is built for the May 2027 exam, so you are not guessing how older materials map to the new short-answer and long-essay setup.
Plans only make sense if APUSH is not your only exam. The AP Monthly plan is $29 a month and includes all 42 AP study guides and 36 AP prep courses. The AP Lifetime plan is $149 once and includes all 42 AP study guides and 36 AP prep courses, yours for good. Plans cover prep only. Exam fees are paid separately when you register.
If credit matters to you, remember that each college sets its own AP credit policy. AP scores run from 1 to 5, and credit is always the college's decision. You can compare options on the plans and pricing page, or go straight to the APUSH prep course if this is the only subject you need.
Frequently Asked Questions about APUSH Prep
There are 9 periods on the AP United States History exam. They run from Period 1, 1491 to 1607, through Period 9, 1980 to the present. The middle six periods, Periods 3 through 8, carry the most weight, with each worth 10% to 17% of the exam.
Periods 3, 4, 5, 6, 7, and 8 matter most because each one is worth 10% to 17% of the exam. Period 2 is worth 6% to 8%. Periods 1 and 9 are the lightest, at 4% to 6% each. That is why your study time should lean toward the middle periods.
The exam has four scored parts: 55 multiple-choice questions, 3 short-answer tasks, 1 document-based question, and 1 long essay. Multiple choice is 40% of the score, short answer is 20%, the DBQ is 25%, and the long essay is 15%.
The unit weights did not change for May 2027, but the format did. In 2027, there are 3 required short-answer questions, and all use sources. There is also 1 required long essay. In May 2026, students answered 3 of 4 short-answer questions and chose from 3 long essay prompts.
The $5 guide is enough for many students who want a printable, unit-by-unit review with practice questions and a cram sheet. The $19 course makes more sense if you want more lessons, quizzes, interactive labs, and written practice, especially because it is built for the May 2027 exam.
Maybe, but credit is always the college's decision. AP scores run from 1 to 5, and each college sets its own policy for what score it needs and what credit it gives. AP exams are given once a year in the first two weeks of May, and exam fees are paid separately when you register.
Final Thoughts on APUSH Prep
If you wanted a clear answer to what's on the AP US History exam, the short version is this: know the 9 periods, spend most of your time on Periods 3 through 8, and practice both multiple choice and writing. If you want the cheapest focused review, start with the $5 AP United States History study guide. If you want more practice and materials built for the May 2027 exam, move up to the $19 AP United States History prep course. Your next step is simple: pick the format you will actually use this week.
Start your AP US History prep today
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