The digital SAT has two sections, Reading and Writing and Math, is adaptive by module, takes about 2 hours 14 minutes and is scored 400 to 1600. The ACT tests English, math and reading, with science optional, and reports a composite score from 1 to 36. Colleges accept either. Take a full official practice test of each, then prepare for the one where you score higher.
Both tests are accepted by US colleges. The right one is the one you score higher on.
Compared
| Digital SAT | ACT | |
|---|---|---|
| Sections | Reading and Writing, Math | English, Math, Reading; Science optional |
| Format | Digital, adaptive by module | Online or paper |
| Approximate time | 2 hours 14 minutes | About 2 hours without Science |
| Score range | 400 to 1600 | 1 to 36 composite |
| Calculator | Built-in Desmos plus approved handhelds | Allowed on math; no CAS models |
Details change, so check the College Board and ACT websites before registering.
How to decide
- Take a full official practice test of each under timed conditions.
- Compare scores using an official concordance table.
- Choose the test with the higher result and stick with it.
How to prepare
- Official practice first. It is free and matches the real test.
- Review every mistake. Keep a log of question types you miss.
- Timed sections once you know the content.
- Course or tutor if you need structure or a big score increase.
Calculators
See calculators for the SAT, ACT and AP. Graduate and professional exams are covered in test prep, and learning a language for an exam in apps vs tutors.
Browse test prep.
Common questions
Do colleges prefer the SAT or the ACT?
US colleges that consider test scores accept both equally. Check each college's testing policy, since some are test-optional.
Is the digital SAT easier?
It is shorter and adaptive, which many students prefer, but scores are designed to be comparable with the paper test.
Is science required on the ACT?
The ACT made science optional in its updated format. Check whether the colleges you are applying to want it.
What is the best SAT or ACT prep?
Start with official practice tests: Bluebook and free practice for the SAT, and ACT's official practice material. Add a course or tutor if you need structure.