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Free ASVAB study guide · all 10 subtests

Free ASVAB practice tests, lessons and questions

124 complete lessons, 6,516 original practice questions with an explanation for every answer, and 82 timed practice tests you can take right here.

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  • Every answer explained
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Start with the free diagnosticBrowse the lessons

60 questions · 75 minutes · shows you where to focus

Try one · easy

A pressure gauge on a test stand reads 52.738 psi. What is the value of the digit 3 in this reading?

Show the answer

Answer: C

Correct answer: 0.03. In 52.738 the places after the decimal point are tenths (7), hundredths (3), and thousandths (8). The 3 is in the hundredths place, so its value is 0.03.

  • A: This places the 3 in the thousandths place, which actually holds the 8.
  • B: This reads the 3 as a tens digit, but it sits to the right of the decimal point.
  • C (correct): The 3 is in the second place after the decimal point, the hundredths place, so it is worth 3 hundredths, or 0.03.
  • D: This treats the 3 as if it were in the tenths place, but the tenths digit is 7.
124lessons 6,516practice questions 82timed practice tests 1,457flashcards

How it works

  1. 1Take the diagnostic60 questions across all subtests show your strong and weak areas.
  2. 2Study the lessonsShort lessons with worked examples, then a lesson test and flashcards to lock it in.
  3. 3Practice under timeFull AFQT and ASVAB tests with every question on one page, an optional timer and a score by subtest.

Study by subtest

AFQT subtests

These four decide whether you can enlist. Start here.

AR · AFQT

Arithmetic Reasoning

Solve arithmetic word problems accurately without a calculator; core AFQT math.

12 lessons · 600 questions

 MK · AFQT

Mathematics Knowledge

Master high-school mathematics principles and formulas; core AFQT math.

14 lessons · 600 questions

 WK · AFQT

Word Knowledge

Build synonym, context and vocabulary skills; core AFQT verbal.

9 lessons · 602 questions

 PC · AFQT

Paragraph Comprehension

Extract information, main ideas and inferences from short passages; core AFQT verbal.

9 lessons · 600 questions

Technical subtests

These feed the line scores that qualify you for specific jobs.

GS

General Science

Review biological, physical, earth and space science knowledge.

12 lessons · 600 questions

 EI

Electronics Information

Understand electricity, circuits, components, magnetism and basic electronics.

12 lessons · 600 questions

 AI

Auto Information

Understand automobile systems, components, maintenance and basic diagnostics.

10 lessons · 655 questions

 SI

Shop Information

Understand tools, materials, shop terminology, processes and safe work practices.

10 lessons · 545 questions

 MC

Mechanical Comprehension

Apply mechanical and physical principles to machines, forces and materials.

12 lessons · 600 questions

 AO

Assembling Objects

Develop spatial visualization and mental assembly skills.

8 lessons · 708 questions

Test guides

How the test works, how scores are built and how to finish strong.

Test guide

ASVAB Foundations & Test Strategy

Understand the exam, scoring, formats, timing, calculator policy and test-day strategy.

8 lessons · 88 questions

 Test guide

Scores, Job Qualification & Final Readiness

Interpret AFQT and service composites, target job-relevant strengths and prepare for test day.

8 lessons · 318 questions

Timed practice tests

Every question of a test is on one page: answer at your own pace or start the timer, then check them all at once for a score by subtest and an explanation for every answer. No question repeats between tests.

2 forms

Diagnostic

Start here. A mixed check across all ten subtests that shows which lessons to study first.

60 questions75 min

Start the diagnostic →10 forms

AFQT practice

The four subtests that decide eligibility: arithmetic, math, word knowledge and reading.

55 questions122 min

Start an AFQT test →10 forms

Full ASVAB

All ten subtests in order on one page, with the real time limit if you want it.

135 questions197 min

Start a full test →
See all 82 practice testsPlus 60 short single-subtest tests.

Flashcards and word list

A short deck for every lesson with the formulas, rules and common traps worth knowing by heart, plus all Word Knowledge vocabulary. Flip a card, mark it "Got it" or "Again", and come back to the ones you missed.

Open the flashcardsASVAB word list

Questions about the ASVAB

Is this ASVAB study guide really free?

Yes. All 124 lessons, all 6,516 practice questions with explanations and all 82 timed practice tests are free on this site (the app is free to download). No sign-up is needed.

What is the ASVAB?

The Armed Services Vocational Aptitude Battery is the aptitude test used by the U.S. military for enlistment and job classification. It has ten subtests covering math, verbal skills, science, technical knowledge and spatial reasoning.

Which subtests count toward the AFQT?

The AFQT score that decides enlistment eligibility comes from four subtests: Arithmetic Reasoning, Mathematics Knowledge, Word Knowledge and Paragraph Comprehension. The other subtests feed the line scores used for job qualification.

Can I use a calculator on the ASVAB?

No. Calculators are not allowed, so the lessons teach the mental math and estimation shortcuts you need.

Are these real ASVAB questions?

No. Every question here is original, written to match the style and difficulty of each subtest. Real test items are secure and are not published by anyone.

Is this site affiliated with the military?

No. It is an independent study resource and is not affiliated with or endorsed by the Department of Defense or any branch of the Armed Forces.

Take it with you: the free app

The same 124 lessons, 6,516 questions and 82 timed practice tests on your phone, plus flashcards with spaced review and progress tracking. Free to download, and it works offline.

  • Works offline
  • Spaced-review flashcards
  • Progress for every subtest
  • Menus in 59 languages
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