ACT Composite Score Calculator
The ACT Composite Score Calculator helps students determine their overall ACT score by averaging four subject scores (English, Math, Reading, Science). This composite score (1-36) is critical for college admissions, scholarships, and academic assessments. It simplifies score interpretation and ensures accuracy.
Calculator
Formula
Composite Score = (English + Math + Reading + Science) / 4, rounded to the nearest whole number.
How to Use
Enter scores (1-36) for all four ACT sections. Click "Calculate" to get your composite score. Use "Clear" to reset. Ensure valid numbers are entered; decimals are automatically rounded. The result reflects your official ACT composite score range.
Development Process
1. Designed HTML structure for inputs/buttons. 2. Styled with CSS for responsiveness. 3. Added JavaScript to validate inputs, calculate average, and round result. 4. Integrated clear function. 5. Tested with sample scores for accuracy.
ACT Score Table
| Section | Score Range |
|---|---|
| English | 1-36 |
| Math | 1-36 |
| Reading | 1-36 |
| Science | 1-36 |
| Composite | Average of 4 sections |
FAQs
How is the ACT composite score calculated?
The composite score is the average of your four section scores (English, Math, Reading, Science). Each section is scored 1-36. The average is rounded to the nearest whole number to create your composite score (e.g., 23.5 rounds to 24).
Can I skip a section in the calculator?
No. All four sections must have valid scores (1-36) to calculate the composite. Missing/invalid inputs trigger an alert. Enter realistic scores for accurate results.
Does the calculator round scores?
Yes. The calculator follows official ACT rounding rules. If the average ends in .5 or higher, it rounds up (e.g., 25.5 becomes 26). Lower decimals round down.
Is the composite score the same as the total score?
No. The composite is an average (1-36), while the total score (sum of sections) ranges 4-144. Colleges primarily use the composite score.
How accurate is this calculator?
It replicates the official ACT method. Results match official reports if correct section scores are entered. It excludes the optional Writing section.
Can I use this for SAT scores?
No. SAT uses a different scoring system (400-1600). Use an SAT-specific calculator instead.
What if I retake the ACT?
Colleges may consider superscores (average of best section scores across multiple tests). This calculator computes single-test composites only.
Why is my composite score lower than individual sections?
The composite is an average. If one section is significantly lower, it reduces the composite. Focus on balanced preparation.
Does the calculator store my data?
No. Scores are processed client-side and not saved. Refresh or close the page to erase all data.
How do colleges use the composite score?
Colleges use it to compare applicants, award scholarships, and assess readiness. A higher composite improves admission chances and merit aid eligibility.