The SAT and ACT are the prevalent standardized tests used for college admissions in the U.S., but they differ in structure, content, and focus.
The SAT is divided into two main sections: Reading/Writing and Math. The ACT has four sections: English, Math, Reading, and Science. The digital SAT takes only 2 hours and 14 minutes to assess a score because it is section-adaptive, while the ACT is 2 hours and 55 minutes.
Both SAT verbal modules blend reading and writing and have one short passage per question. The ACT English and reading sections are separate and each comprises long passages.
The SAT is half math. It has an embedded Desmos calculator and, like the reading/writing, is section-adaptive. It places more emphasis on algebra and data analysis. The ACT’s math section includes a broader range of topics, including more geometry and trigonometry.
One major difference is the ACT’s dedicated Science section. While the SAT integrates scientific concepts into its reading passages, the ACT specifically tests the ability to interpret data, graphs, and scientific hypotheses.
The SAT is scored on a scale of 400 to 1600, while the ACT uses a 1 to 36 scale. SAT scores are an aggregate of the two main sections, while the ACT is an average of the four sections.
The SAT offers more time per question, favoring students who prefer a slower, more deliberate pace. The ACT, on the other hand, is faster-paced, requiring strong time management skills.
Ultimately, the choice between SAT and ACT depends on a student’s strengths and preferences. Ivy Masters recommends students take a mock test of each to see which test score is comparably higher.
The ACT is undergoing a major change in September 2025.
