ACT Complete Guide: Format, Sections, Timing, and Scores (2026)

The current ACT has three required multiple-choice sections—English, Math, and Reading—plus optional Science and Writing sections. The required test contains 131 questions and takes 2 hours and 5 minutes of testing time. ACT scores each multiple-choice section from 1 to 36, and the current Composite is the rounded average of English, Math, and Reading.

That description is important because older ACT guides often treat Science as required and include it in the Composite. The enhanced ACT changed that calculation for all testers beginning in September 2025.

ACT format at a glance

ACT notes that some questions in the required sections are field-test questions and are not scored. You will not know which questions they are, so treat every question as scored.

The official ACT section guide is the source of the current counts and timing above.

What changed on the enhanced ACT?

The enhanced test is shorter than the legacy ACT. Science is now optional, and the Composite uses only the three required sections. The test remains available in paper and online formats, depending on the administration.

Your old scores are not recalculated. ACT continues to report valid legacy scores, while scores from current administrations use the updated structure. When comparing practice materials, make sure the question counts and timing match the test you will actually take.

How ACT scoring works

Each required section receives a scale score from 1 to 36. Your Composite is the average of English, Math, and Reading, rounded to the nearest whole number.

Example:

The average is (29 + 27 + 31) / 3 = 29, so the Composite is 29.

Science no longer changes the Composite, but students who take it receive a separate Science score and a STEM score based on Math and Science. Students who take Writing receive a Writing score and an ELA score that incorporates English, Reading, and Writing.

Raw-score conversion is not perfectly fixed. Different forms can use slightly different conversion tables to account for difficulty, so an online “one-size-fits-all” raw conversion is only an estimate. Use the scoring key packaged with the official practice test you completed.

What each section tests

English

English asks you to revise and edit passages. The official reporting categories include Production of Writing, Knowledge of Language, and Conventions of Standard English. Expect decisions about organization, purpose, concision, grammar, sentence structure, and punctuation.

Math

Math covers skills normally learned through the beginning of grade 12. Preparing for Higher Math represents most of the section and includes algebra, functions, geometry, statistics and probability, and number and quantity. A permitted calculator can be used throughout Math.

Reading

Reading tests close reading, central ideas, details, inferences, word meaning, text structure, argument, evidence, and connections between passages or graphics. The fastest improvement usually comes from learning to locate proof for an answer instead of relying on memory after reading a passage.

Optional Science

Science focuses more on reasoning from information than recalling a huge science syllabus. You interpret tables, graphs, experiments, variables, trends, models, and competing explanations. Take it when a college, scholarship, or program requests it, or when a strong Science score would improve your academic profile.

Optional Writing

Writing gives you a complex issue and multiple perspectives. You develop your own position and analyze its relationship to the provided perspectives. It is scored separately and does not affect the Composite.

Should you take Science or Writing?

Check every college and scholarship on your list. The optional label means ACT can produce a valid Composite without the section; it does not mean every external program ignores the score.

Science can make sense for students targeting STEM programs or wanting an additional science-readiness signal. Writing is less commonly required, but requirements can change. Use the admissions website of the institution—not an old test-prep post—as the final source.

A practical ACT preparation cycle

1. Take an official current-format diagnostic. Use ACT's free official practice tests.
2. Score with that test's conversion table. Record section scores, raw accuracy, guesses, and unfinished questions.
3. Choose two weaknesses. Separate content errors from pacing errors.
4. Drill under short time limits. Repair one question type before returning to a full section.
5. Retest under current timing. Measure whether the skill transfers without a topic label.

Choose a timeline that matches the score gap

Use act test as part of a measurable plan, not an isolated collection of tips.

Start with a current official diagnostic. The score gap matters, but so do unfinished questions, section imbalance, and the number of repeated error types. A student 50 points from a goal with one clear weakness needs a different plan from a student 200 points away across both sections.

Anatomy of a productive 60-minute session

Minutes 0–5: retrieval. Without notes, write the rule, formula, or decision process from the previous session.

Minutes 5–20: focused learning. Study one small concept and reproduce the example independently.

Minutes 20–40: deliberate practice. Complete a short set and mark confidence before checking answers.

Minutes 40–52: deep review. Analyze misses, guesses, and slow correct answers. Write one prevention rule.

Minutes 52–60: transfer and plan. Solve two mixed questions, then schedule the exact next task.

The review block is not optional. It is where completed questions become reusable decisions.

Weekly planning template

• Monday: weakest Math or quantitative skill;
• Tuesday: weakest verbal or English skill;
• Wednesday: second weakness plus retrieval from Monday;
• Thursday: mixed timed set;
• Friday: rest or a short error-log review;
• Saturday: official module, section, or periodic full test;
• Sunday: deep review and next-week planning.

Adjust the labels for the ACT’s sections or an individual student’s needs. Keep at least one recovery day. Consistency requires a schedule that survives school deadlines and imperfect weeks.

Measure progress without overtesting

Track three metrics: accuracy by skill, completion under time, and recurrence of the same error. A total score is a useful checkpoint, but it can hide improvement in one section and decline in another.

Take full tests often enough to measure transfer but not so often that they replace learning. During a long plan, every two or three weeks may be sufficient. Closer to test day, weekly simulation can make sense if there is enough time to review it fully.

When the plan stalls

If two fresh checkpoints show no improvement, do not automatically add hours. Inspect the loop. Are you repeating familiar questions? Reviewing only wrong answers and ignoring lucky guesses? Studying broad chapters instead of the two recurring skills? Practicing untimed for weeks without a transfer stage?

Change one variable at a time. Narrow the skill, improve the explanation source, add timed transfer, or get feedback on the reasoning. Then measure again.

Final-week priorities

Reduce new material. Review compact notes, formulas, grammar rules, error patterns, and test-day procedures. Complete a final simulation early enough to recover and learn from it. Protect sleep and normal school responsibilities. The final week should make good decisions feel familiar, not create a new curriculum.

FAQs

Official sources

See ACT's current pages on exam structure, test enhancements, and official preparation.