ACT Score Calculator
Work out your ACT Composite from your section scores, using the enhanced ACT rules.
About the ACT Score Calculator
Enter your English, Math and Reading scores (and Science if you took it). The calculator gives the ACT Composite and, with Science, the STEM score.
On the enhanced ACT (all tests from September 2025), the Composite is the average of English, Math and Reading, each scored 1–36, rounded to the nearest whole number with halves rounded up. Science is optional; if taken, it's reported separately and combined with Math into a STEM score. Earlier ACTs averaged all four sections.
The formula
Composite = (English + Math + Reading) ÷ 3, rounded
- STEM
- (Math + Science) ÷ 2, rounded
Worked example
English 28, Math 30, Reading 27
- (28 + 30 + 27) ÷ 3 = 28.33
- Composite 28 (rounded to the nearest whole number)
Questions people ask
Does Science still count?
Not toward the Composite on the enhanced ACT; some colleges still ask for it.
How does rounding work?
A .5 or higher rounds up: 28.5 becomes 29.