ACT percentiles are, in some ways, even more important than your ACT score. Why? Because they provide an easy way to compare your performance on the ACT to your performance on the SAT and the performance of other students in general.

What is a Percentile, Anyway?

Your ACT percentile ranking tells you how you did compared to everyone else on the test. For example, if your ACT composite percentile is 74%, that means that you scored higher than 74% of other students who took that administration of the test. It does NOT mean you scored a 74% on the test.

On your ACT Score Report, you’ll see numerous percentile scores: A U.S. rank percentile, a state rank percentile, and percentiles for each subject test and subscores within each subject. So many percentages to use for data!

What are the ACT Score Percentiles?

You might be surprised to learn just how “good” your ACT score is compared to other students’ scores. Did you know that if you score a 32+, you did better than 98% of test-takers? Or that if you scored a 26, you did better than 83% of test-takers?

Here’s a chart with the most recently-released ACT percentiles for composite scores:

ACT SCORE      PERCENTILE
36 99
35 99
34 99
33 99
32 98
31 96
30 95
29 92
28 90
27 87
26 83
25 79
24 74
23 68
22 63
21 56
20 50
19 43
18 36
17 30
16 24
15 18
14 12
13 7
12 4
11 1
10 1
9 1
8 1
7 1
6 1
5 1
4 1
3 1
2 1
1 1

Or check out the ACT’s complete chart of percentiles broken down by subject and subsection.

How to Use ACT Score Percentiles to Improve Your Score

If you have plans to retake the ACT to improve your score, you can use the subscore percentiles on your score report to figure out what you need to work on the most.

Here’s a snippet from an ACT score report to use as an example:

Notice that regarding ACT English “Usage/Mechanics” and “Rhetorical Skills” questions, this student is doing about the same on each question type, so there is perhaps no need to focus more on one over the other. But on Math, the student’s percentile score for “Plane Geometry and Trigonometry” at 39% is lower than his or her subscore percentiles for “Pre-Algebra/Elementary Algebra” or “Algebra/Coordinate Geometry,” so this might be an indication to work more on this category.

You can also use the subject percentiles to compare your performance on each subject. If you were even-steven across the board, your percentiles should look roughly the same on English, Math, Reading, and Science. But in this case, this student is performing much better in English and Reading (74% and 66% respectively) than Math or Science (47% and 32% respectively). Although it is certainly fine to be stronger in one subject than another, you don’t want any one subject to be dragging down your score or percentile too much. Colleges can see this too and would note that you are weak in certain areas. So this is a wake-up call to work a little more on these sections for an ACT retake.

How Do Colleges Use ACT Score Percentiles?

College admissions offices typically use concordance tables to compare ACT scores to equivalent SAT scores and use past admitted student data to compare your ACT scores to those of typically admitted students. So, in the college’s eyes, your actual score is more important. However, percentile rankings provide an easy way of determining at a quick glance roughly how you compare to other students. So admissions officers (particularly ones who don’t have the concordance tables memorized, aka most of them) are likely to take notice of your percentiles as well.

Key Takeaway

ACT score percentiles allow you to see at a glance how you did on the test compared to other students. They tell you what percentage of students you scored higher than and can be a useful tool to see how your ACT score percentiles compare to your SAT score percentiles and which areas you need to improve upon.