Links to Free Official ACT Practice Tests You’ve probably never taken a test that requires such precise timing and endurance don’t let test day be your first encounter. Taking a full-length practice test will help you understand the fast-paced timing of the test, the structure of the sections, and the stamina you need to complete the hours-long exam. Similarly, taking a practice ACT test before your real ACT test shows you how prepared you are for the ACT and where you still need practice. Would you run a half-marathon without running at least 10 miles before the race? Probably not! A practice run shows you how prepared you are for the race to come and where you could improve. On the hunt for free, official ACT practice tests? Find six full-length practice test PDFs below – including the official 2021 ACT practice test.