ACT Structure & Scoring
8 min read · Entrenau
Understanding the structure of the ACT by ACT, Inc. is essential for designing an effective study strategy. Knowing the sections tested, question format, and scoring system lets you prioritize your preparation and maximize your performance.
ACT Overview
The ACT is a standardized test administered by ACT, Inc. and is widely accepted by colleges and universities across the United States as part of the admissions process. It measures readiness for college-level work in English, Math and Reading, with an optional Science section.
The exam has three required multiple-choice sections (English, Math and Reading) plus two optional sections, Science and Writing (an essay).
Tip: The ACT does not penalize wrong answers, so never leave a question blank. Even a random guess gives you a 25% chance of getting it right.
Sections Tested
English: Production of Writing, Knowledge of Language and Conventions of Standard English, on several passages. 50 questions in 35 minutes.
Math: Preparing for Higher Math (Number and Quantity, Algebra, Functions, Geometry, Statistics and Probability) and Integrating Essential Skills. 45 questions in 50 minutes. Calculator permitted.
Reading: Key Ideas and Details, Craft and Structure, and Integration of Knowledge and Ideas, on long and shorter prose passages. 36 questions in 40 minutes.
Science (optional): Interpretation of Data, Scientific Investigation, and Evaluating Scientific Arguments and Models with Evidence. 40 questions in 40 minutes. Does not count toward the Composite.
ACT, Inc. — Official ACT Test Description
Scoring System
Each section is scored on a scale of 1-36. Your Composite score is the average of your English, Math and Reading scores, rounded to the nearest whole number. The optional Writing section is scored separately on a scale of 2-12 and does not affect the composite.
There is no penalty for wrong answers, so you should answer every question. The national average Composite for the graduating class of 2025 was 19.4, according to the ACT national profile report. Top-tier universities often expect scores of 30 or above.
Preparation Strategy
English and Math have the most questions, so mastering these sections offers the highest return on your study time. Focus on grammar rules for English and algebra/geometry fundamentals for Math.
The Science section tests data interpretation more than science knowledge — practice reading graphs, tables, and experimental summaries quickly.
Fuentes: Official ACT website