Quick Answer

Enter your correct counts for English, Math, Reading and Science. Each maps to a 1–36 scale score using a representative ACT equating curve. Your composite = average of the four, rounded to the nearest whole (.5 up), on a 1–36 scale. ACT equates each test form separately, so the exact curve varies — this is a planning estimate.

The ACT reports four subject scores — English, Math, Reading and Science — each on a 1–36 scale. Your composite is their average, rounded to the nearest whole number (with .5 rounding up). Because ACT equates every form, the raw-to-scale table is form-specific; the calculator below uses a representative curve so you can convert a practice-test raw count into a realistic score instantly.

ACT Score Calculator

Enter the number of questions you answered correctly in each of the four ACT subjects. We convert each raw count to its 1–36 scale score with a representative ACT equating curve, then average the four for your composite (rounded to the nearest whole, .5 up).

Official ACT section lengths: English 75, Math 60, Reading 40, Science 40 questions. ACT equates each form separately, so the raw→scale curve is form-specific; the table used here is a representative approximation for planning.

ACT Composite
30
avg of 4 sections = 29.75 · range 1–36

Subject Scores

English (50/75)31
Math (40/60)30
Reading (28/40)29
Science (28/40)29
Composite (1–36)30

How the ACT Is Scored

Your raw score is the number of questions you answered correctly in a subject. ACT converts that to a scale score (1–36) through equating. The composite is:

ACT Composite = round( (English + Math + Reading + Science) ÷ 4 ), .5 rounds up → 1–36

Representative Raw → Scale Tables

The anchors below approximate each ACT subject's equating curve (official section lengths: English 75, Math 60, Reading 40, Science 40). The calculator linearly interpolates between them. These are planning approximations, not official ACT tables.

English (0–75 questions)

Raw correctScale (1–36)
01
57
1011
1514
2017
2520
3023
3525
4027
4529
5031
5532
6033
6534
7035
7536

Math (0–60 questions)

Raw correctScale (1–36)
01
59
1014
1518
2021
2524
3026
3528
4030
4532
5033
5534
6036

Reading (0–40 questions)

Raw correctScale (1–36)
01
48
813
1217
1620
2023
2426
2829
3231
3634
4036

Science (0–40 questions)

Raw correctScale (1–36)
01
48
813
1216
1620
2023
2426
2829
3231
3634
4036
Educational estimate only. ACT equates each test form separately, so the true raw→scale conversion is form-specific and never published as one fixed table. The curves above are representative approximations for planning, not your official scores. Verify with your official ACT score report.

Frequently Asked Questions

How is the ACT composite calculated?

ACT reports four subject scores — English, Math, Reading and Science — each on a 1–36 scale. Your composite is the average of those four, rounded to the nearest whole number, with exactly .5 rounding up. Our calculator applies that same rule to the scaled scores it derives from your raw counts.

How many questions are on each ACT section?

The official ACT section lengths are English 75, Math 60, Reading 40, and Science 40 questions. Enter your correct count for each; the calculator maps it to a 1–36 scale score using a representative equating curve.

Why does ACT use a raw-to-scale conversion?

Like the SAT, ACT equates each test form so scores are comparable across dates. That makes the exact raw→scale table form-specific. The tables in this calculator are representative approximations for planning, not official ACT tables.

What is a good ACT composite?

The national average composite is about 19–20. A 24+ is roughly the 75th percentile, and 30+ is competitive for selective colleges. These are planning targets, not guarantees — check each school’s published middle-50% range.

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