ACT Composite Score Calculator
Enter your section scores (1-36) to calculate your estimated composite score.
Your Estimated Composite Score
How the ACT Composite Score is Calculated
The ACT is scored on a scale of 1 to 36. Your final "Composite Score" is the average of your four multiple-choice section scores: English, Mathematics, Reading, and Science. Each of these sections is also scored on a scale of 1 to 36.
The Rounding Rule
The calculation is simple arithmetic, but the rounding rule is specific. If the average of the four sections ends in a decimal of .5 or higher, the score is rounded up to the next whole number. If the decimal is less than .5, it is rounded down.
Example Calculation:
- English: 24
- Math: 28
- Reading: 26
- Science: 25
- Average: (24 + 28 + 26 + 25) / 4 = 25.75
- Final Composite: 26 (Rounded up from 25.75)
ACT Score Ranges and Percentiles
| Composite Score | Percentile (Approximate) | Rating |
|---|---|---|
| 33-36 | 98th – 99th+ | Exceptional |
| 28-32 | 90th – 97th | Excellent |
| 24-27 | 74th – 89th | Very Good |
| 20-23 | 54th – 71st | Average/Above Average |
| Below 20 | Below 50th | Below Average |
Tips for Improving Your Score
1. Focus on Your Weakest Section
Because the composite score is an average, a significant jump in your lowest-scoring section can pull your entire average up more effectively than trying to squeeze a few more points out of your strongest section.
2. Understand the Time Constraints
The ACT is a fast-paced test. Practice with a timer to ensure you can complete the English section (75 questions in 45 minutes) and the Science section (40 questions in 35 minutes) without rushing the final questions.
3. Use the Process of Elimination
There is no penalty for guessing on the ACT. If you can eliminate even one or two incorrect answers, your statistical probability of choosing the correct answer increases significantly. Never leave a bubble blank.