ACT Score Calculator
Calculate the current ACT composite or superscore from English, Math and Reading section scores.
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How to use the act score calculator
Each block explains one part of how this works and how to read the result.
Choose your method and enter inputs
Calculate the current ACT composite or superscore from English, Math and Reading section scores.
Choose the calculation mode or grading scale, then replace the example inputs with your own values. Check the credits, weights or selected scoring profile before calculating.
Formula and methodology
Composite = round((English + Math + Reading) / 3). Superscore uses the highest score in each section.
The calculation breakdown lists what was counted and which rules were applied. Data-backed results identify their source and version; changing inputs clears a previous result so it cannot be mistaken for a new calculation.
Worked example
English 27, Math 29 and Reading 28 give (27 + 29 + 28) / 3 = 28. Science does not affect this composite.
Assumptions and limitations
Current methodology applies across ACT programs from September 2025. Raw-question conversions depend on a particular test form.
Check the result's method and linked source. A practice profile or planning estimate should be interpreted within its stated assumptions.
Frequently asked questions
How does the act score calculator calculate its result?
Composite = round((English + Math + Reading) / 3). Superscore uses the highest score in each section.
Can I use this without an account?
Yes. The tool is free and does not require a login. Financial worksheets calculate in your browser; DOI metadata is retrieved from Crossref.
What assumptions should I check?
Current methodology applies across ACT programs from September 2025. Raw-question conversions depend on a particular test form.
Can I access the same calculation through an API?
Yes. Use /api/tools/act-score-calculator. Structured arrays and financial inputs use a JSON POST body. The API returns calculation steps and source provenance.
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Developer API
POST JSON to /api/tools/act-score-calculator. The browser and API share the same deterministic engine. Financial inputs use POST only and responses are not cached. The service does not store your financial inputs.
Response fields: title, value, metrics, steps, rows, warnings, provenance. Citation responses also include normalized metadata and in-text citations.
Example JSON request
{
"mode": "composite",
"english": 27,
"math": 29,
"reading": 28
}
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