What Is an ACT Score Calculator?
An ACT score calculator converts your raw scores on each section of the ACT into scaled section scores and your overall composite score. The ACT has four multiple-choice sections — English, Math, Reading, and Science — each scored from 1 to 36, and the composite is their average. This calculator helps you estimate your result from a practice test so you can track progress and set goals.
How to Use the Calculator
- Enter your raw scores — the number correct on each section.
- The calculator converts each to a scaled score (1–36).
- Calculate — see each section score and your composite.
How the ACT Composite Works
Each section is scored from 1 to 36. The composite score is the average of the four section scores, rounded to the nearest whole number:
Composite = (English + Math + Reading + Science) ÷ 4
For example, sections of 28, 30, 26, and 24 average to 27 — the composite.
ACT Score Ranges
| Composite Score | Percentile (approx) |
|---|---|
| 36 | 99th+ (top score) |
| 30 | ~93rd |
| 24 | ~74th |
| 20 | ~49th (near average) |
Why Raw-to-Scaled Conversion Varies
Each ACT test form has its own conversion table, so the same number of correct answers can map to slightly different scaled scores between tests. This adjusts for small differences in difficulty. Practice-test calculators use representative tables to give a close estimate.
Tips for Improving Your ACT
- Target your weakest section, where gains are easiest.
- Take full-length timed practice tests to build stamina.
- Review every wrong answer to learn the pattern.
- Since there is no penalty for guessing, answer every question.
Frequently Asked Questions
How is the ACT composite score calculated?
It is the average of your four section scores (English, Math, Reading, Science), each on a 1–36 scale, rounded to the nearest whole number.
What is a good ACT score?
The average composite is around 20. Scores of 24+ are above average, 30+ are competitive for selective schools, and 36 is the maximum.
How do raw scores become scaled scores?
Each test form has a conversion table mapping the number of correct answers to a 1–36 scaled score, adjusting for slight differences in difficulty between tests.
Is there a penalty for wrong answers on the ACT?
No — the ACT has no guessing penalty, so you should answer every question even if you have to guess.
Is this ACT calculator free?
Yes — it is completely free, requires no signup, and estimates your composite score.