ACT vs SAT: Which Test Should You Take?

Published March 2026 · 5 min read

Both the ACT and SAT are universally accepted by American colleges, and most universities do not prefer one over the other. But this does not mean both tests are equally suitable for every student. Understanding the structural differences between these exams can help you make a choice that plays to your strengths.

Structural Differences at a Glance

The ACT has four sections: English, Math, Reading, and Science (with an optional Writing section). The total time is approximately 2 hours 55 minutes without Writing, or 3 hours 35 minutes with it. The ACT does include a dedicated Science section, which tests data interpretation and scientific reasoning rather than specific science knowledge.

The SAT has two main sections: Reading/Writing and Math (no dedicated Science section). The total time is approximately 2 hours 14 minutes. The SAT includes a small amount of trigonometry in the Math section, while the ACT covers a broader range of math topics including matrices and logarithms.

Key Differences That Matter

Science: If you excel in science classes and enjoy data interpretation, the ACT's Science section may play to your strengths. If you find science tedious or struggle with interpreting charts and experiments, the SAT's omission of a dedicated Science section may be preferable.

Math Depth: The SAT math section focuses heavily on algebra and problem-solving, with a smaller trigonometry component. The ACT covers more ground including matrices, logarithms, and more complex geometry. Students who excel in advanced math topics often perform better on the ACT.

Reading Speed: Both tests include challenging reading passages, but the ACT gives you slightly less time per question. If reading comprehension under time pressure is a weakness, the SAT may offer more breathing room.

Wrong Answer Penalty: Neither test penalizes guessing anymore (since going digital, both have removed the guessing penalty). Guess freely when you can eliminate options.

Which Colleges Prefer Which?

Technically, virtually all four-year colleges and universities in the United States accept both scores interchangeably. However, in certain regions — particularly the Midwest and the South — the ACT has traditionally been more popular and admissions officers in those regions may have more experience comparing ACT scores. This does not mean they prefer it — just that they may be slightly more attuned to it.

Recommendation

Take a practice test of each. Do not decide based on what your friends are taking or what you have heard from internet forums. Your performance on a timed, full-length practice test of each exam will tell you more than any article can. Whichever test you score higher on — with less study time — is probably the right test for you.

And remember: you can take both. Many students take the ACT in the spring of junior year and the SAT in the fall, using whichever score is higher for their college applications.