Comparing the SAT and ACT - Table 8 - 26

Sep 14, 2026

Comparing the SAT and ACT focuses on high-level differences in format, timing, scoring structure, and test emphasis. The table contrasts section composition and total testing time, explains how SAT subscores sum while ACT composite scores are averaged, and highlights unique skills assessed in Writing/English, Math, Reading, and Science. It also compares both essay formats, including task requirements and scoring domains, helping students choose the more suitable test based on strengths and available time.

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Comparing the SAT and ACT

Format and Length

Scoring

Writing/English

Math

Reading

Science

Essay

Comparing the SAT and ACT The SAT and ACT are different tests with significant overlap. While most students will score equally well on both, for some students the differences between the tests can make one test a better option than the other. The chart below outlines some of the high-level differences. | | SAT | ACT | Key Differences | | --- | --- | --- | --- | | Format and Length | 5 sections (comprising 3 “tests”and an essay)
Writing & Language; Reading; 2 Math; Essay
Total testing time: 3 hours, 50 minutes (with essay) | 5 sections (comprising 4 “tests”and an essay)
English; Mathematics; Reading; Science; Writing
Total testing time: 3 hours, 25 minutes (with essay) | The SAT has a stronger emphasis on math, whereas
the ACT has a stronger emphasis on science. Overall testing time and section lengths are similar. SAT questions generally require more critical thinking, but the SAT also provides 30-40% more time per question. | | Scoring | Combined Score: 400-1600 Evidence-Based Reading and Writing: 200-800
Math: 200-800
Essay (not added into combined score): 6-24 | Composite Score: 1-36 English: 1-36
Math: 1-36
Reading: 1-36
Science: 1-36
Writing (not averaged into composite score): 1-36 | The ACT Composite score is averaged, so a change in one test may not be reflected in the Composite. The ACT Composite is divided into few possible scores, soan increase of one point can represent a significant difference in abilities.
The SAT Combined score is the sum of the section scores. | | Writing/ English | Revision and editing Standard English grammar Punctuation
Logical structure Effective rhetoric | Revision and editing Standard English grammar Punctuation
Logical structure Effective rhetoric | The SAT Writing & Language and ACT English tests are similar in format and content. The SAT has more emphasis on rhetoric and has more complex passages, but offers about 33% more time per question than the ACT does. | | Math | Pre-Algebra through Trig
12 Grid-in questions (no answer choices)
Strong emphasis on algebra Calculator prohibited on one section | Pre-Algebra through Trig Extensive range of concepts tested
Formulas not provided
5 answer choices per question (rest of test has 4) | The SAT and ACT Math tests cover similar ranges of concepts. The ACT requires a broad, basic knowledge of many concepts. The SAT requires a deep knowledge of a core set of concepts, particularly in algebra. The SAT offers about 38% more time per question than the ACT does. | | Reading | 4 single passages and 1 paired passage
2 diagrams/charts
2 vocabulary-in-context questions per passage
2 evidence questions per passage | 4 single or paired passages Consistent order of subject areas: Literary Narrative or Prose Fiction, Humanities, Social Sciences, Natural Sciences | The ACT Reading test emphasizes basic reading comprehension. The SAT Reading test emphasizes defining vocabulary in context, understanding the role of the author, and defending answers with textual evidence. The SAT typically has more complex passages, but offers about 43% more time per question. | | Science | The SAT does not have a standalone Science section, but science questions will be included throughout the Math, Reading, and Writing & Language tests | 40 questions
6 or 7 passages
Emphasis on charts &diagrams Science is a reasoning test—rarely requires prior specific science knowledge | The ACT Science test measures interpretation, analysis, evaluation, reasoning, and problem-solving skills. The test uses scientific language and reasoning, but rarely requires any specific knowledge from your academic science classes. The SAT does not have an analogue to the ACT Science test. | | Essay | 50 minutes
Analyze a passage and evaluate author’s reasoning and rhetoric Scored on 2-8 scale on each of three domains: Reading, Analysis, Writing | 40 minutes
Evaluate three perspectives on a contemporary issue
Scored on 2

FAQs

How do SAT and ACT differ in format and total testing time?

Both tests have five sections and include an essay, but the SAT total time is 3 hours 50 minutes (with essay) while the ACT total time is 3 hours 25 minutes (with essay). The section “tests” also differ in composition, such as where writing and science appear.

How do SAT and ACT scoring work differently?

The SAT combined score is the sum of section scores, while the ACT composite score is averaged across relevant sections. The ACT composite is based on a limited set of possible scores, so a one-point change can reflect a meaningful ability difference.

What are the key differences in Math, Reading, and Science emphasis?

Both Math tests cover similar concept ranges, but the SAT emphasizes deeper knowledge of core concepts like algebra and provides more time per question, while the ACT expects broad basic knowledge. SAT Reading emphasizes context vocabulary, author purpose, and textual evidence, whereas ACT Reading emphasizes basic comprehension. The ACT includes a standalone Science reasoning test, while the SAT distributes science-related questions across other sections.

Sep 14, 2026

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