ACT Score Calculator
This ACT score calculator computes your composite score exactly the way the ACT does: it averages your English, Math, Reading, and Science section scores (each 1–36) and rounds to the nearest whole number. Enter your four section scores plus a target composite to see each section's contribution and how many points you still need. Handy for practice tests and score planning.
Your goal on the 1–36 composite scale.
ACT composite score
24
- English
- 24
- Math
- 24
- Reading
- 24
- Science
- 24
- Gap to targetTarget met exactly.
- 0
How it was calculated
- Sum of sections: 24 + 24 + 24 + 24 = 96.
- Average: 96 ÷ 4 = 24.00 → rounded to 24.
- Gap to target 24: 24 − 24 = +0.
How it works
The ACT composite is the straight average of the four section scores — English, Math, Reading, Science — each on the 1–36 scale.
The average is rounded to the nearest whole number using standard rounding (.5 rounds up), giving the 1–36 composite colleges see.
All four sections carry equal weight, so a 4-point gain in your weakest section moves the composite exactly as much as a 4-point gain in your strongest.
The gap is your target composite minus the computed composite; a positive gap tells you how many composite points of improvement to plan for.
Worked examples
Balanced 28s across the board
Scores of 28, 28, 28, 28 average to exactly 28.0, so the composite is 28. Against a target of 30, the gap is +2 — roughly 8 more section points spread anywhere across the four tests.
Uneven: 32 English, 26 Math, 30 Reading, 24 Science
Sum = 112, average = 28.0, composite = 28. The weakest section is Science at 24; lifting Science to 28 alone would push the average to 29.0 and the composite to 29.
How to measure
- Use section scores from a full timed practice ACT, not from untimed drills, so the average reflects test-day performance.
- Convert each section's raw correct count to the 1–36 scale with that test's score chart before entering them here.
- Record all four sections every time — a composite from a partial test hides the section dragging you down.
- Compare composites across at least three practice tests; one test's rounding can flatter or punish you by a point.
- When planning retakes, target the weakest section first since each section contributes exactly one quarter of the composite.
Assumptions & limitations
Planning estimate
- Composite rounding follows standard .5-up rounding, matching ACT reporting.
- This calculator starts from 1–36 section scores; converting raw correct answers to section scores requires the score chart from your specific practice test.
- Section scores are weighted equally — the optional ACT writing score is not part of the composite and is excluded.
- Results describe practice-test performance and do not predict official scores, which depend on equating for your test date.
Frequently asked questions
Add your four section scores (English, Math, Reading, Science — each 1–36) and divide by four, then round to the nearest whole number. For example, sections of 25, 27, 26, and 28 average to 26.5, which rounds to a 27 composite.
Most colleges focus on the composite, but many also consider individual section scores — especially Math and English for placement. Some schools superscore, taking your best section scores across multiple test dates to build a higher composite.
The national average is around 19–20. A 24+ is above average, 28+ is competitive at selective schools, and 33+ places you in the top few percent of test-takers. Always compare against the middle-50% ranges of your target colleges.
No. The optional writing test produces a separate 2–12 score that is reported alongside but never folded into the 1–36 composite. This calculator follows that rule and ignores writing entirely.
Up. ACT rounds .5 up to the next whole number, so an average of 26.5 becomes a 27 composite. Averages of 26.25 or 26.75 round to 26 and 27 respectively.