ACT, the alternative route into US undergraduate study.

Accepted interchangeably with the SAT by American colleges, but structured differently — four sections including science reasoning, with an optional writing test.

Undergraduate
US admission: About 2h 55m
without writing: 1–36
composite scale: 4 sections
plus optional writing: Science
reasoning section

KEY TAKEAWAYS

What this page covers

The ACT is accepted interchangeably with the SAT by United States colleges.
It runs about 2 hours 55 minutes without the optional writing test.
Four sections are each scored 1 to 36 and averaged into a composite.
A science reasoning section tests data interpretation rather than science knowledge.
The pace is faster than the SAT, with less time available per question.
Writing is reported separately and is required by only some colleges.

ABOUT THE TEST

Same acceptance as the SAT, a different kind of pressure.

Colleges treat ACT and SAT scores as equivalent, so the choice is about fit rather than prestige. The ACT gives you less time per question and adds a science reasoning section, which rewards quick data interpretation. Students who read fast and handle charts comfortably often score better here than on the SAT.

01Equivalent to the SATNo college prefers one over the other.
02Faster paceFewer seconds per question than the SAT.
03Science reasoningData interpretation, not science knowledge.

Collegiate gothic building on a university campus

Presenter in front of a room of people with laptops

What the ACT measures

No college prefers the ACT over the SAT or the reverse — they are treated as equivalent. The choice is about which format suits you. The ACT gives you less time per question and adds a science reasoning section built around charts, experiments and conflicting viewpoints.

That science section tests data interpretation, not recalled science. Students who read quickly and are comfortable pulling conclusions out of graphs often score better here than on the SAT, even when their maths and English are similar.

Exam pattern

Four multiple-choice sections, plus an optional writing test that some colleges require.

Section	Questions	Time	What it tests
English	75	45 minutes	Grammar, usage and rhetorical skills
Maths	60	60 minutes	Through to elementary trigonometry
Reading	40	35 minutes	Comprehension across four passage types
Science	40	35 minutes	Charts, experiments and conflicting viewpoints

How scoring works

Each section is scored 1 to 36 and the four are averaged into a composite. Writing, where taken, is reported on its own scale.

Component	Detail
Section scores	1 to 36 for each of the four sections
Composite	The average of the four section scores
Writing	Scored and reported separately from the composite
Superscoring	Best sections combined across dates at many colleges

Fees and registration

International candidates pay the registration fee plus a regional charge, with the writing test priced separately.

Fee type	Detail
Registration	Set by ACT, with a separate international fee outside the US
Writing test	Charged in addition where required by your colleges
Late registration	Surcharge applies after the standard deadline
Score reports	A small number included; additional reports charged per college

ACT publishes its fee schedule in US dollars and revises it periodically. Confirm the current international registration and regional fee on the official ACT site before booking.

Dates and registration

Several international sittings run each year, and registration windows close well before the test date. Check whether your colleges require the writing test before you register, because adding it afterwards is not always possible.

Multiple-choice results are released ahead of the writing score, so build a little slack into your timeline if a college needs the complete report.

COMMON QUESTIONS

Frequently asked questions

SAT or ACT — which should I take?

Colleges treat them as equivalent, so take the one you score better on. The honest way to find out is to sit a timed practice test of each before committing to months of preparation. The ACT suits fast readers who handle charts comfortably and do not mind a quick pace. The SAT suits students who prefer more time per question and are stronger on close reading of short passages. We run both diagnostics at the start of a batch for exactly this reason.

Is the writing section required?