ACT vs SAT: Which Test Should You Take in 2025?
By Study Mondo Team
With the SAT going fully digital and the ACT considering similar changes, choosing between these tests matters more than ever. Here is an honest comparison to help you decide.
Format Comparison
| Feature | Digital SAT | ACT |
|---|---|---|
| Total time | 2 hours 14 min | 2 hours 55 min (+ 40 min writing) |
| Sections | 2 (Reading/Writing + Math) | 4 (English, Math, Reading, Science) |
| Questions | 98 | 215 |
| Scoring | 400-1600 | 1-36 composite |
| Calculator | Allowed throughout | Allowed throughout |
| Science section | No | Yes |
| Adaptive | Yes (module-level) | No |
Key Differences
Pacing
The ACT is a sprint — you have significantly less time per question:
| SAT | ACT | |
|---|---|---|
| Reading/English | ~1.2 min/question | ~36 sec/question (English), ~53 sec/question (Reading) |
| Math | ~1.6 min/question | ~60 sec/question |
If you work slowly but accurately, the SAT may be better. If you work quickly and prefer more straightforward questions, try the ACT.
Math Content
- SAT Math emphasizes algebra, data analysis, and multi-step problem solving. Questions tend to be wordier and test reasoning.
- ACT Math covers a broader range including more geometry and trigonometry, but questions are more direct.
Science
The ACT Science section is really a data interpretation and scientific reasoning section. You do not need to know advanced science — you need to read graphs, tables, and experimental descriptions quickly.
The SAT tests similar skills within its Reading/Writing passages but does not have a dedicated science section.
Adaptive Testing
The Digital SAT is module-adaptive: your performance on the first module determines the difficulty of the second module. This means:
- Strong first module → harder (but higher-scoring) second module
- Weaker first module → easier (but lower-scoring) second module
The ACT is the same for everyone.
How to Decide
Take the SAT if you...
- Prefer more time per question
- Excel at algebra and word problems
- Like working through multi-step reasoning
- Do not mind adaptive difficulty
Take the ACT if you...
- Work quickly and confidently
- Are strong in science data interpretation
- Prefer straightforward, direct questions
- Want the same test regardless of how you start
The Best Approach
Take a full-length practice test for each:
Compare your scores. Many students find a meaningful difference — sometimes 2-3 points on the ACT scale (or 100+ points on the SAT) — between tests.
Score Comparison
Colleges accept both tests equally. Here is an approximate concordance:
| SAT | ACT |
|---|---|
| 1600 | 36 |
| 1530-1560 | 35 |
| 1490-1520 | 34 |
| 1450-1480 | 33 |
| 1400-1440 | 32 |
| 1360-1390 | 31 |
| 1330-1350 | 30 |
| 1290-1320 | 29 |
| 1250-1280 | 28 |
Study Resources on Study Mondo
SAT
- SAT Practice — Full diagnostic and practice tests
- SAT Score Predictor
- SAT Study Plans
ACT
- ACT Practice — Full-length practice with all 4 sections
- ACT Score Predictor
- ACT Study Plans
Not sure which test is right for you? Try our SAT Diagnostic and ACT Diagnostic to see where you stand.