ACT Score Calculator
On the enhanced ACT the composite averages English, Math and Reading: scores of 30, 31 and 32 give a composite of 31.
Optional on the enhanced ACT; 0 if you did not take it. Gives the STEM score.
31
- Average before rounding
- 31
- Concordant SAT total (2018 table)
- 1390–1410
Step-by-step solution
- Composite = (English + Math + Reading) ÷ 3, rounded to the nearest whole number (.5 rounds up)
- = (30 + 31 + 32) ÷ 3 = 31
- = 31
ACT Score Formula
Composite = round[(English + Math + Reading) ÷ 3]
.5 rounds up; STEM = round[(Math + Science) ÷ 2]
Worked Example
English 30, Math 31 and Reading 32:
- Composite = (English + Math + Reading) ÷ 3, rounded to the nearest whole number (.5 rounds up)
- = (30 + 31 + 32) ÷ 3 = 31
- = 31
Concordant SAT total (2018 table): 1390–1410
Rounding
The average is rounded to the nearest whole number, with halves rounded up: an average of 31.33 is a 31 and 31.5 is a 32. One point in a single section can therefore move the composite, which is why superscoring helps.
More Scores and GPA Calculators
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SAT Superscore Calculator
Superscore = best R&W + best Math
across all test dates; each section 200–800
Example: Three SAT dates: 640/690, 680/660 and 650/720: SAT superscore = 1400.
-
SAT to ACT Score Converter
Lookup in the 2018 ACT/SAT concordance table
each ACT composite corresponds to a range of SAT totals
Example: An SAT total of 1300: SAT 1300 ≈ ACT = 28.
-
GPA Calculator
GPA = Σ(grade points × credits) ÷ Σ credits
A = 4.0, A− = 3.7, B+ = 3.3 … F = 0; AP/IB +1, Honors +0.5 for weighted
Example: Grades A (AP), A−, B+ (Honors), A (half credit) and B: Unweighted GPA = 3.556.
Frequently asked questions
Does Science count in the ACT composite?
Not on the enhanced ACT: the composite uses English, Math and Reading. Science is optional and, if taken, combines with Math into a separate STEM score.
How does ACT superscoring work?
Colleges that superscore take your best English, Math and Reading from different test dates and average them into a new composite.
Sources
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). ACT Score Calculator. Retrieved October 25, 2026, from https://scientificconverters.com/calculators/act-score-calculator/
IEEE
Scientific Converters, "ACT Score Calculator," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/calculators/act-score-calculator/