SAT vs ACT: Which Test Should You Take?

Every college in the United States that accepts standardized test scores accepts both the SAT and the ACT, and none of them treats one as more impressive. Anyone telling you otherwise is repeating a myth from decades ago.

So the choice is purely about which one you will score better on, relative to the students you are being compared to. That is a question you answer with a practice test, not with an article.

The SAT is 98 questions across four modules in 2 hours and 14 minutes: Reading and Writing as two 32 minute modules of 27, then Math as two 35 minute modules of 22. It is digital, taken in Bluebook, and adaptive between modules.

The ACT is organized as separate subject tests rather than modules, and it is not adaptive. It has recently been restructured, including changes to section lengths and the status of the science section, so check act.org for the current question counts and timing before you plan around any specific number.

The clearest structural difference is pacing. The SAT gives you about 71 seconds per Reading and Writing question and about 95 seconds per Math question. The ACT has historically been the faster test per question, which is why students who read quickly often prefer it and students who think slowly and carefully often prefer the SAT.

SAT Math is 44 questions weighted about 35 percent Algebra, about 35 percent Advanced Math, about 15 percent Problem Solving and Data Analysis, and about 15 percent Geometry and Trigonometry. About a quarter are grid-ins where you type the answer. A calculator is allowed on all of it, and the testing app includes a Desmos graphing calculator.

ACT Math is all multiple choice, covers a somewhat wider range of topics including more geometry and some matrices and logarithms, and does not provide a reference sheet or a built in calculator. You bring your own approved calculator.

The SAT reference sheet is geometry only, which means you memorize your algebra formulas either way. The practical difference is that the SAT gives you more time and a graphing tool, while the ACT covers more ground with less time per question.

SAT Reading and Writing combines comprehension and grammar into one section of 54 questions, each attached to its own short passage of 25 to 150 words. There are no long passages with question sets.

The ACT separates English and Reading into different sections and uses longer passages with multiple questions attached. If you are comfortable holding a long passage in your head, that suits you. If you prefer short self contained items, the SAT suits you.

The ACT also has a science section, which is mostly about reading charts, comparing experiments, and evaluating conflicting viewpoints rather than recalling science content. The SAT has no equivalent section, though it does put graphs and tables inside both Reading and Writing and Math questions.

Take one official full length practice test of each, timed, on separate days. Then compare where each score falls relative to the schools on your list, using each school's published middle 50 percent ranges for both tests. Comparing raw scores across the two scales is meaningless. Comparing where you sit in each pool is not.

If the two results are close, pick the one whose format you disliked less, because you are going to spend months with it. Time pressure and passage length are the two things students report most consistently as the deciding factor.

Whatever you choose, commit. Preparing for both splits your time and gets you a mediocre score on two tests instead of a good score on one.