How Is the ACT Scored?

Written by Alan Hair, Founder, Bridgepath AI Solutions · Updated July 29, 2026

Each section's raw score (the number of questions you get right, with no penalty for wrong answers) is converted to a 1–36 scale score. Your Composite is the average of English, Math, and Reading, rounded to the nearest whole number. Science and Writing are optional and scored on their own. Here's the whole pipeline, step by step.

From answer sheet to Composite: the four steps

1. Raw score. ACT counts the number of questions you answered correctly in each section. There is no deduction for wrong answers, so a guess can only help you.
2. Scale score. Each section's raw score is converted to a score on the 1–36 scale. ACT does this so that, in its words, results "have the same meaning across all ACT test forms, regardless of test date." A 28 earned on an easier form and a 28 earned on a harder form represent the same level of skill.
3. Section scores. You get a 1–36 score for English, Math, and Reading (the core sections), plus a separate 1–36 score for Science and a 2–12 score for Writing if you take them.
4. Composite. Your Composite (1–36) is the average of your English, Math, and Reading scores, rounded to the nearest whole number. Three sections. Science and Writing never enter the Composite.

What counts toward your Composite (and what doesn't)

ACT also reports two combined scores that do not change your Composite:

• STEM score — the average of your Math and Science scores (reported if you take Science).
• ELA score — the average of your English, Reading, and Writing scores (reported if you take Writing).

These are extra context for STEM-leaning or humanities-leaning applicants. They sit alongside your Composite; they never replace it. On the enhanced ACT the headline number is, and stays, the average of English, Math, and Reading. (For where that number puts you nationally, see ACT score percentiles explained.)

There is no wrong-answer penalty, so bubble everything

This is the highest-value scoring fact on the test. Your raw score is the number you got right, full stop. A blank and a wrong answer are worth exactly the same: zero. A guess is worth strictly more than a blank, because it might be right.

Math now has four answer choices instead of five, so a blind guess is a 1-in-4 shot, and an educated guess is better. With about a minute left in any section, the correct move is always to fill in every remaining bubble before time is called. Build that habit in timed practice so it's automatic on test day.

Why there is no universal "raw score to scale score" chart

Students constantly search for "what raw score is a 30?" There is no fixed answer, and any site that prints one is misleading you. Because each form is equated to mean the same thing across dates, the raw-to-scale conversion is different on every test form. On one form a Math raw of 38 might scale to a 30; on a slightly harder form, a 36 raw might reach the same 30.

The honest way to estimate it: take an official ACT practice test and use the conversion table printed with that specific test. That gives you a real raw-to-scale map for one real form, which is the closest you can get to a personal target. A single fixed chart pulled from one old released test and presented as "the" conversion is exactly the kind of unverified number this site won't publish.

How the Composite rounds (with a worked example)

The Composite is the rounded average of three section scores. ACT's rule: fractions below one-half round down; one-half or more rounds up. A quirk worth knowing falls straight out of the math:

The average of three whole numbers can only end in .00, .33, or .67. It can never land on an exact .5. So for the Composite, a .33 always rounds down and a .67 always rounds up, and the "exactly .5 rounds up" rule only ever applies to the two-section STEM score (Math and Science), whose average can end in .5.

Scale score, percentile, and superscore are three different things

People mix these up constantly. They measure different things:

• Scale score is your 1–36 result on a section or the Composite. It's "how you did."
• Percentile (your "US Rank") is how your score compares to other students nationally. It's "how you did versus everyone else." Full table: ACT score percentiles explained.
• Superscore is a new Composite built from your best section scores across multiple test dates. It's "your best self, assembled." How it works: ACT superscore, and how it differs from a single-sitting Composite: superscore vs composite.

Knowing which number a college actually uses changes how you plan retakes. Once you understand the scoring, the next question is what to aim for: what's a good ACT score?

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