Most four-year colleges accept both the ACT and SAT with no preference, so the question isn't which test colleges want — it's which test is better for you. The two exams test similar underlying skills but in meaningfully different formats, and those differences matter. A student who would score in the 90th percentile on one test might only hit the 75th percentile on the other, simply because the format doesn't play to their strengths. Here's how to figure out which one is yours.
Format at a Glance
The Digital SAT has two sections: Reading & Writing (two modules, 54 questions, 64 minutes) and Math (two modules, 44 questions, 70 minutes). Total time is about 2 hours and 14 minutes. The test is section-adaptive — your performance on the first module of each section determines the difficulty of the second module. All questions are multiple choice (four options). You can use the built-in Desmos calculator on the entire Math section.
The ACT has four sections: English (75 questions, 45 minutes), Math (60 questions, 60 minutes), Reading (40 questions, 35 minutes), and Science (40 questions, 35 minutes), plus an optional Writing section (1 essay, 40 minutes). Total time is about 2 hours and 55 minutes without Writing, or 3 hours and 35 minutes with it. The test is not adaptive — all students receive the same questions. Questions are multiple choice (four or five options depending on the section).
Timing and Pacing
This is one of the biggest practical differences between the two tests. The SAT gives you more time per question on average — roughly 1.5 minutes per question in both sections. The ACT is significantly faster-paced: you get about 36 seconds per question in English, 60 seconds in Math, 52 seconds in Reading, and 52 seconds in Science.
If time pressure is your enemy — if you tend to second-guess yourself, re-read questions multiple times, or need extra time to process — the SAT's more generous timing may work in your favor. If you're a fast test-taker who works quickly and confidently through questions, the ACT's pace won't bother you, and you might actually prefer the more straightforward question style that comes with the tighter timing.
Try a timed section of each test and honestly assess: did you run out of time? Have to rush at the end? Or did you finish with time to spare? Your timing experience is one of the strongest signals about which test suits you.
The Science Section (ACT Only)
The ACT's Science section is often misunderstood. It's not a test of science knowledge — you don't need to memorize the periodic table or know the stages of mitosis. It's a test of scientific reasoning: interpreting data tables and graphs, understanding experimental design, evaluating conflicting hypotheses, and drawing conclusions from evidence. The passages provide all the information you need.
If you're comfortable reading data visualizations and thinking critically about experimental setups, the Science section can be a strength. If graphs and data tables make you nervous, this section will be a significant challenge — and since there's no equivalent section on the SAT, that's a strong argument for choosing the SAT instead.
One important note: the ACT Science section does include a small number of questions (usually 3–4) that require outside science knowledge — basic concepts from biology, chemistry, earth science, and physics that you'd learn in a standard high school curriculum. These are rare, but they do exist.
Calculator Policies
The Digital SAT provides a built-in Desmos graphing calculator that's available for the entire Math section. You don't need to bring your own calculator (though you can bring an approved one). Desmos is powerful — it can graph equations, find intersections, create tables, and handle complex calculations. If you learn to use it efficiently, it's a significant advantage.
The ACT allows you to bring your own calculator (most models are approved, including graphing calculators like the TI-84), but no calculator is built into the test. The ACT Math section is designed to be solvable without a calculator — many questions are faster by hand — but having one available for complex calculations is helpful. If you have a favorite calculator and know its features well, the ACT lets you use that familiar tool.
Scoring and Superscoring
The SAT is scored on a 400–1600 scale (sum of two section scores, each 200–800). The ACT is scored on a 1–36 scale (average of four section scores, each 1–36). Both scores are well-understood by admissions committees, and concordance tables exist to translate between them.
Superscoring is the practice of taking your highest section scores across multiple test dates and combining them. Most colleges superscore the SAT (taking your highest Reading & Writing score and highest Math score from different sittings). Superscoring policies for the ACT vary more by school — many colleges will superscore it, but some won't. If you plan to take the test multiple times and want the maximum benefit from superscoring, check each of your target schools' policies.
One practical advantage of the SAT's two-section structure: there are only two scores to optimize. With the ACT's four sections, superscoring across sittings requires more attempts to improve each individual section.
Decision Flowchart
Use these questions to guide your choice:
- Do you work well under tight time pressure? If yes, the ACT is fine. If no, lean SAT.
- Are you comfortable interpreting data, graphs, and experiments? If yes, the ACT Science section could be a strength. If no, the SAT avoids this entirely.
- Is math your strongest subject? If yes, the ACT Math section (which is more straightforward but faster-paced) might suit you. If math is weaker, the SAT's built-in Desmos and more generous timing could help.
- Do you have a strong vocabulary and enjoy close reading? Both tests reward this, but the SAT's Reading & Writing section places slightly more emphasis on vocabulary in context.
- Do you want to write an essay? The ACT has an optional Writing section. The SAT has no essay. If you're a strong writer and your target schools value the ACT Writing score, it could help your application.
If you're still unsure after considering these factors, take a full-length practice test of each. Compare your percentiles (not raw scores, since the scales are different). The test where you score relatively higher is the one that fits your skills better.
Preparing With CramClub
CramClub has dedicated prep suites for both the SAT and ACT. Each includes full-length practice tests matching the real exam format, section drills for targeted practice, and a diagnostic assessment that helps you identify your strengths and weaknesses. You can take a diagnostic for both tests and compare your results — that data will tell you more than any guide can.
Whichever test you choose, the preparation strategy is the same: diagnose your weak areas, build a study plan around them, practice under timed conditions, and review your mistakes thoroughly. The test doesn't define you. Your preparation does.
— Peter