ACT Composite Score Calculator

The ACT composite score is the average of your four section scores — English, Mathematics, Reading, and Science — each scored on a 1–36 scale. Add all four scores and divide by 4, then round to the nearest whole number. For example: English 28 + Math 30 + Reading 27 + Science 29 = 114 ÷ 4 = 28.5, which rounds to 29. The Writing (Essay) score is optional and reported separately on a 2–12 scale — it does not affect the composite.

The national average ACT composite is around 19–20. A score of 24+ puts you in the top 25% of test takers. A score of 29+ is top 10%. A score of 33+ is top 1%. For highly selective colleges (Ivy League, MIT, Stanford), the middle 50% range is typically 33–36. For competitive state universities, 24–30 is a strong target. Community colleges typically accept all scores.

ACT defines readiness benchmarks for success in first-year college courses: English — 18 (predicts 50%+ chance of B or better in English Composition), Math — 22 (College Algebra), Reading — 22 (Social Sciences course), Science — 23 (Biology). Meeting all four benchmarks indicates strong college readiness across disciplines.

Each section has a different number of questions (English: 75, Math: 60, Reading: 40, Science: 40). Your raw score is simply the number of correct answers — there's no penalty for wrong answers on the ACT. ACT then converts raw scores to scaled scores (1–36) using an equating process that accounts for slight difficulty differences between test versions. The conversion table varies slightly by test date.

You can take the ACT as many times as you want. Most students take it 2–3 times. ACT offers Score Choice, which lets you choose which test date scores to send to colleges. Many colleges practice superscoring — taking the highest section scores across multiple test dates — which rewards multiple attempts. Check each college's policy on ACT superscoring before registering.

Both are accepted by virtually all US colleges. Key differences: ACT has a Science section (SAT does not); SAT Math has more advanced topics including trigonometry and data analysis; ACT is more time-pressured (shorter time per question); SAT has no penalty for guessing (same as ACT). Take a free practice test for both and choose based on which format you score higher on. Many students find one suits them better.

Superscoring means a college takes your highest section score from each ACT test date and calculates a new composite from those best scores. For example: Test 1 (E:28, M:25, R:30, S:27 = composite 28) and Test 2 (E:25, M:30, R:28, S:29 = composite 28): superscore = (28+30+30+29) ÷ 4 = 29.25, rounded to 29. Many selective colleges now superscore the ACT — check your target schools' policies.