About the ACT diagnostic
Prepare for ACT Math, English, Reading, and Science with focused drills and predictor tools.
This diagnostic is a starting point rather than a practice exam: it samples the whole syllabus so you can see which units you already know and which ones need the work, before you spend study time guessing.
Units on this diagnostic
Questions are drawn from all 6 units of ACT, covering 38 topics in total.
- ACT Math · 13 topics
- ACT English · 6 topics
- ACT Science · 6 topics
- ACT Reading · 9 topics
- ACT Writing (Optional Essay) · 1 topics
- ACT Test Strategy · 3 topics
How to use your results
The score report is broken down by unit. Start with the unit you scored lowest on rather than the one you enjoy most, work through its lessons and exit quiz, then come back and take the diagnostic again to confirm the gain is real.
Common questions
- What does the ACT diagnostic cover?
- It draws on all 6 units of ACT: ACT Math, ACT English, ACT Science, ACT Reading, ACT Writing (Optional Essay), ACT Test Strategy.
- Is the ACT diagnostic free?
- Yes. The diagnostic and your results are free to use.
- What happens after I finish?
- Your results break the score down by unit, so you can see which ones cost you the most points, and you can start a study plan built from that result.
- Can I take it more than once?
- Yes. Each attempt draws from a different form, so a retake is new questions rather than the ones you just saw.