ACT Score Calculator
Raw scores to an estimated ACT composite.
Reviewed by the Calculation Machine team · Updated 24 October 2026 · How we check our maths
Your values
ⓘ Live results
- Estimated composite
- 28
- English / Math
- 30 / 27
- Reading / Science
- 28 / 26
- Section average
- 27.8
Quick answer
The ACT composite is the average of your scaled section scores, rounded to the nearest whole number (halves round up). Each section's raw score — the number correct, with no penalty for wrong answers — converts to a 1–36 scale. Section scores of 30, 27, 28 and 26 average 27.75, so the composite is 28.
What the ACT Score calculator does
Enter how many questions you answered correctly in each ACT section and this calculator estimates your scaled 1–36 section scores and your composite. It is designed for scoring full-length practice tests in the classic four-section format — 75 English, 60 math, 40 reading and 40 science questions — which is what most published practice books and older official tests use.
The raw-to-scaled conversion is an estimate. ACT builds a separate conversion chart for every test form so that scores mean the same thing whichever form you sit; a given raw score can shift by a point or so between forms. If your practice test comes with its own chart, that chart is the most accurate source.
The ACT changed in 2025: the current "enhanced" test is shorter, science is optional, and the composite averages English, math and reading only. The section on the new format below explains how to read your results either way. If you are weighing the ACT against the SAT, the SAT score calculator estimates that test from raw scores too.
The formula
Composite = round((English + Math + Reading + Science) ÷ 4)
| Symbol | Meaning | Unit |
|---|---|---|
| English, Math, Reading, Science | Scaled section scores converted from the number of correct answers | 1–36 |
| round | Round to the nearest whole number; an average ending in .5 rounds up | — |
Composite rounding follows ACT's published score-reporting rules. The raw-to-scale step uses a smooth approximation of typical ACT conversion charts, not an official table. On the enhanced ACT (2025 onward), the composite is the rounded average of English, math and reading; science, if taken, is reported separately and feeds a STEM score. The optional writing test is scored separately (2–12) and never affects the composite.
Worked examples
Solid practice test
A junior scores 62/75 in English, 45/60 in math, 31/40 in reading and 29/40 in science.
Inputs
- English correct (of 75)62
- Math correct (of 60)45
- Reading correct (of 40)31
- Science correct (of 40)29
Result
- Estimated composite28
- English / Math30 / 27
- Reading / Science28 / 26
- Section average27.8
Estimated sections are 30, 27, 28 and 26 for a 28 composite. Science is the weakest; if the target college uses the enhanced format, the English–math–reading average (28.3) still rounds to 28.
Aiming for selective colleges
A strong test-taker gets 70 English, 55 math, 36 reading and 35 science right.
Inputs
- English correct (of 75)70
- Math correct (of 60)55
- Reading correct (of 40)36
- Science correct (of 40)35
Result
- Estimated composite33
- English / Math34 / 33
- Reading / Science33 / 32
- Section average33
That estimates 34, 33, 33 and 32 for a 33 composite. At this level each extra correct answer is worth less than a scaled point, so cutting careless errors matters more than learning new content.
Building toward college-readiness benchmarks
A student gets 45 English, 30 math, 22 reading and 20 science right on a first practice test.
Inputs
- English correct (of 75)45
- Math correct (of 60)30
- Reading correct (of 40)22
- Science correct (of 40)20
Result
- Estimated composite20
- English / Math22 / 19
- Reading / Science20 / 19
- Section average20
Estimated sections of 22, 19, 20 and 19 give a 20 composite, near the national average. English clears ACT's benchmark of 18; math, reading and science are below their 22–23 benchmarks.
ACT College Readiness Benchmarks
ACT publishes benchmark section scores linked to a 50% chance of earning a B or better (and about a 75% chance of a C or better) in a related first-year college course. They are a more useful target than the composite alone.
| Section | Benchmark score | Linked college course |
|---|---|---|
| English | 18 | English Composition |
| Math | 22 | College Algebra |
| Reading | 22 | Social sciences courses |
| Science | 23 | Biology |
Classic vs enhanced ACT format
- Classic format (before 2025): English 75 questions, math 60, reading 40, science 40; composite averages all four. Most printed practice tests use this layout, and this calculator scores it.
- Enhanced format (2025 onward): English 50 questions, math 45, reading 36, with science (40 questions) optional. The composite averages English, math and reading.
- Scores stay on the same 1–36 scale, so a 28 composite means the same level of performance in either format.
- Practicing on an enhanced-format test: its question counts do not match this calculator, so convert each section with that test's own chart, then average English, math and reading with the average calculator.
Check the current test structure and dates on ACT's website before registering.
What counts as a good ACT score
The national average composite has been around 19–20 in recent years. A 24 or higher is above average, scores of 30+ are competitive for selective colleges, and 34–36 is typical at the most selective schools. A college's published middle-50% range (25th to 75th percentile of admitted students) is the best guide for your list. To see how your score ranks, ACT reports a percentile with every score; the percentile rank calculator explains how percentile ranks work.
How to use the ACT Score Calculator
- 1Score your practice test section by section, counting only correct answers — there is no deduction for wrong answers.
- 2Enter the number correct for English (out of 75), math (out of 60), reading (out of 40) and science (out of 40).
- 3Read the estimated scaled score for each section and the composite.
- 4If your practice test came with its own raw-to-scale chart, compare — the official chart for that form takes priority.
Frequently asked questions
How is the ACT composite score calculated?
It is the average of the scaled section scores rounded to the nearest whole number, with .5 rounding up. Section scores of 25, 26, 24 and 27 average 25.5, which rounds to 26.
Is there a penalty for guessing on the ACT?
No. Only correct answers count toward the raw score, so you should answer every question, even with a guess.
Does the ACT writing test count toward the composite?
No. Writing is scored separately on a 2–12 scale and does not change the composite.
Does science still count on the ACT?
On the enhanced ACT introduced in 2025, science is optional and not part of the composite. On the classic format, it is one of the four averaged sections.
How many questions can I miss for a 36?
Very few — usually zero to a couple per section, depending on the form's conversion chart. Harder forms allow slightly more misses for the same scaled score.
References
- ACT Technical Manual — ACT, Inc.
- ACT College Readiness Benchmarks — ACT, Inc.
- ACT homepage — ACT, Inc.
About this calculator
- Built and reviewed by the Calculation Machine team · How we build and test calculators
- Last reviewed: October 24, 2026
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