ACT Score Calculator
Estimate your ACT composite score from English, Math, Reading and Science scores. Free ACT calculator with charts, breakdowns, and percentile estimates.
About This Calculator
The ACT Score Calculator helps students estimate their ACT composite score from raw section scores. Enter the number of correct answers you expect in each of the four ACT sections — English (0-75), Math (0-60), Reading (0-40), and Science (0-40) — and get instant estimated scaled scores for each section along with your composite ACT score ranging from 1 to 36.
This calculator uses a standard raw-to-scaled score conversion that approximates the ACT's official scoring process. Each raw score is converted to a scaled score between 1 and 36 using a formula calibrated to typical ACT conversion tables. The composite score is calculated as the average of the four scaled scores rounded to the nearest whole number. The tool also provides an estimated percentile rank and a qualitative rating to help you understand where your score falls among all test takers.
The ACT is a standardized test widely used for college admissions in the United States. It is accepted by all four-year US colleges and universities. The test covers four academic areas: English (75 questions, 45 minutes), Mathematics (60 questions, 60 minutes), Reading (40 questions, 35 minutes), and Science (40 questions, 35 minutes). The total testing time is 2 hours and 55 minutes without the optional Writing section, or 3 hours and 35 minutes with Writing. Over 1.3 million students take the ACT each year.
Use this calculator in conjunction with official ACT practice materials to estimate your current score range and identify areas for improvement. Remember that the official ACT conversion tables vary slightly by test date, so your actual score on test day may differ by 1-2 points from the estimate provided here.
Frequently Asked Questions
How is the ACT composite score calculated?
The ACT composite score is the average of your scaled scores from the four sections: English, Math, Reading, and Science. Each section is scored from 1 to 36. The composite is computed as (English + Math + Reading + Science) / 4 and rounded to the nearest whole number. For example, if you score 28 in English, 30 in Math, 26 in Reading, and 27 in Science, your composite would be (28+30+26+27)/4 = 27.75, rounded to 28.
What raw scores correspond to each ACT section?
The ACT has four sections with different maximum raw scores: English has 75 questions, Math has 60 questions, Reading has 40 questions, and Science has 40 questions. Your raw score is simply the number of questions you answered correctly in each section. There is no penalty for wrong answers, so always guess on questions you don't know.
How are raw scores converted to scaled ACT scores?
Each section's raw score (number correct) is converted to a scaled score between 1 and 36 using the ACT's official conversion chart. The conversion varies slightly by test administration to account for differences in difficulty across test dates. This calculator uses a standard approximation to estimate your scaled scores based on typical ACT conversion patterns.
What is a good ACT score?
A good ACT score depends on your college goals. The national average ACT composite score is approximately 19.8. A score of 24 or above is considered good and competitive for many state universities. Scores of 28-32 are competitive for selective colleges, and scores of 33-36 are excellent for Ivy League and top-tier institutions. The 90th percentile is approximately 29, and the 99th percentile is approximately 34.
Is the ACT harder than the SAT?
The ACT and SAT are different tests designed for different strengths. The ACT includes a Science section and has faster-paced questions with less time per question. The SAT has no Science section, focuses more on evidence-based reading and problem-solving, and has slightly more time per question. Both tests are equally accepted by US colleges. It is recommended to take a practice test for each to determine which suits your strengths better.
How often is the ACT offered and how do I register?
The ACT is offered six to seven times per year in the United States, typically in September, October, December, February, April, June, and July. International test dates may vary. Registration is available online at www.act.org. Regular registration deadlines are approximately one month before each test date. Late registration is available with an additional fee.
What is the ACT optional Writing section?
The ACT offers an optional 40-minute Writing section that is scored separately from the composite score. The Writing score ranges from 2 to 12 and does not affect your 1-36 composite score. Some colleges require or recommend the Writing section, so check the requirements of the schools you plan to apply to before deciding whether to take it.
How should I prepare for the ACT?
Effective ACT preparation includes understanding the test format, taking full-length practice tests under timed conditions, focusing on your weakest sections, and reviewing concepts you struggle with. Official ACT prep materials from act.org are the most reliable. Many students also use prep books from major publishers, online courses, or work with tutors. Most students improve their scores by 1-3 points with dedicated preparation over 2-3 months.