SAT vs ACT: Which Test Should You Take?

The direct answer: pick the test where your percentile is higher after one timed practice of each, because colleges accept both and the scores are close for most students. This guide compares the digital SAT® and the redesigned ACT on format, timing, math, science, and scoring, then gives a two weekend method to decide.

SAT is a trademark of the College Board. ACT is a trademark of ACT, Inc. StudyInk is not affiliated with or endorsed by the College Board or ACT, Inc.

SAT vs ACT at a Glance

The ACT details come from ACT's official section guide (ACT: exam sections and structure). The SAT details come from College Board's structure page (College Board: SAT structure).

The Quick Decision Checklist

• Have you taken one timed practice of each? If no, do that before deciding.
• Which test gave the higher percentile after score conversion?
• Which test felt more natural to sit through?
• Does your target school require or recommend ACT Science?
• Do you prefer more time per question or a shorter total test?
• Are you comfortable with adaptive difficulty or do you want a fixed test?

The percentile answer wins. A higher raw number on one scale means nothing until both are converted, because the SAT and ACT use different scales.

Understand the Current Format

The digital SAT is the only SAT available. You take it on a laptop or tablet in the Bluebook app at a test center. It has two sections, each split into two modules. Your performance on the first module sets the difficulty of the second, and thus part of your score ceiling. The test runs 2 hours 14 minutes with a 10 minute break.

The redesigned ACT is offered in both digital and paper formats at many sites. It is linear, so every student sees the same questions in the same order. The core covers English, Math, and Reading, with optional Science and Writing sections. The core runs about 2 hours 5 minutes, with the optional sections adding time.

Timing and Pace

The SAT gives more time per question than the ACT. The Reading and Writing section allows about 71 seconds per question, and Math about 95 seconds. The ACT moves faster, especially in English and Reading. If you read carefully and dislike rush, the SAT pace may suit you. If you process fast and keep accuracy, the ACT pace may feel natural.

Math Differences

Both tests lean on algebra, but they diverge. The SAT math emphasizes algebra, advanced math, problem solving, and data analysis, with a smaller share of geometry and trigonometry. The redesigned ACT math covers a broader set, including more geometry and some topics such as matrices and logarithms that the SAT touches less.

On the SAT, Math is half of your total score. On the ACT, Math is one of the core sections averaged into the composite, so a weak math score hurts less on the ACT. The SAT provides a reference sheet of formulas and a built-in Desmos calculator. The ACT does not provide formulas, so you must memorize them.

The Science Question

The SAT has no separate science section. Scientific reasoning appears inside reading passages and math problems. The redesigned ACT has a Science section, now optional, that tests data interpretation through graphs, tables, and experiment descriptions. It is not a content test of biology or chemistry. Strong data readers can pick up points there, but because it is optional, check whether your target programs value it.

Scoring and Superscoring

The SAT reports 400 to 1600, the sum of two section scores of 200 to 800. The redesigned ACT reports a 1 to 36 composite, the average of the required core section scores. Neither test penalizes wrong answers, so guessing is better than leaving blanks.

Colleges that superscore may combine your best section results across dates. Policies differ, and some schools require all scores. Official concordance tables let you compare the two scales because 400 to 1600 and 1 to 36 are not directly equivalent.

The Two Weekend Method

Use this clean experiment to decide.

Weekend 1

Take one full-length, official SAT in Bluebook under timed conditions. Score it and note the percentile, not just the number.

Weekend 2

Take one full-length, official ACT under timed conditions. Score it and convert to a percentile using the published concordance.

Compare percentiles

Pick the test with the higher percentile. If they are within a few points, pick the one that felt better to sit through. A student who felt rushed on the ACT but calm on the SAT should favor the SAT. A student who disliked the SAT's short choppy passages should favor the ACT.

Commit and stop switching

Prep for one test only. Splitting time between the two builds two half-formed skill sets and usually lowers both scores. Once you choose, stay with it through at least one retake.

When Each Test Fits Better

The SAT tends to fit students who want more time per question, are strong in algebra and word problems, like the built-in Desmos calculator, and prefer a shorter test with no science section. The redesigned ACT tends to fit fast readers who keep accuracy under time pressure, students strong in geometry and broader math, those who want a fixed test order, and STEM applicants who can use an optional Science section. Neither is a better test. The fit depends on your skills.

Common Misconceptions

• "One test is harder than the other." They reward different skills, not more difficulty.
• "My raw score decides." Convert to percentile before comparing.
• "I should prep for both." Pick one and commit.
• "ACT Science is required." It is optional on the current exam and does not count toward the composite.
• "The SAT gives a formula sheet, so it is easier." The ACT's broader math topics can offset that advantage for some students.

Frequently Asked Questions

Which is easier, the SAT or the ACT?

Neither is objectively easier. The SAT gives more time per question and rewards deeper analysis. The ACT moves faster and covers broader math. Your cognitive style decides which is easier for you.

Should I take both tests?

Usually no. Prep for one test concentrates your effort and tends to produce a higher top score. Take both only if practice scores are nearly tied and a school's policy makes a second test useful.

Is the ACT Science section required?

No, the ACT Science section is optional on the current exam and does not count toward the composite. Some STEM programs still value a strong science score, so check target schools.

How do I compare an SAT 1400 to an ACT 31?

Use the official concordance tables, because the scales differ. An SAT around 1400 aligns roughly with an ACT in the low 30s, but always convert before comparing.

Does the SAT give a formula sheet?

Yes, the digital SAT provides a reference sheet of common math formulas in the testing app. The ACT provides no formulas, so memorize them yourself.

Can a tool help me decide?

A side-by-side comparison of the two exams can clarify the format and scoring differences. For SAT-side practice, official Bluebook tests are the closest match to test day.