How Hard Is the ASVAB

Here is an honest look at how hard the ASVAB is (its difficulty). See what makes it tough. See what to expect, based on real pass rates and scores.

12 min readUpdated January 2025
JT

Written by James Torres

Education Writer | Military Test Researcher

The Short Answer

The ASVAB is medium hard for most people. It covers what you learn in grades 10 to 12. About 70% of people who take it score high enough for at least one military branch. Some jobs and branches need higher scores. Those are harder to reach. How hard it feels depends on your schooling. It also depends on how long ago you studied math and reading.

1ASVAB Pass Rates and Numbers

To see how hard the ASVAB is, look at real numbers. Your ASVAB score is a percentile score. That means it compares you to a big group of other test takers.

Key Numbers

~70%

of test takers score high enough for at least one branch

50

is the average AFQT score (the test is built this way)

~30%

of people don't reach the lowest score they need

31-36

lowest AFQT score each branch takes

The AFQT (Armed Forces Qualification Test) score decides if you can join the military. It comes from four of the nine ASVAB subtests (test parts): Arithmetic Reasoning, Mathematics Knowledge, Word Knowledge, and Paragraph Comprehension.

Good to Know

About 70% of people pass. But many of them studied first. People who walk in with no study fail more often. Also, passing is not the same as getting the job you want. Many popular jobs need scores far above the lowest score.

2What Makes the ASVAB Hard

The ASVAB does not try to trick you. It does not ask about odd facts. It is hard for a few simple reasons. Many people don't see them coming.

Not Much Time

The CAT-ASVAB is the computer version of the test. It is timed, and it changes as you go. Many people feel rushed, most of all on math. For example, you get about 39 minutes for 16 Arithmetic Reasoning questions. That is less than 2.5 minutes per question.

Reality check: You may know the answers. But if you go too slow, your score can drop a lot.

Lots of Subjects

The ASVAB tests nine different subjects. You don't need to be an expert in any one. But you need the basics in all of them. That goes from algebra to car repair to electronics.

Reality check: Most people have 2 or 3 subjects they have not thought about since high school.

No Calculator Allowed

You must do all math by hand or in your head. Many people used calculators all through school. For them, this is often the biggest change. You need to be good at mental math and fractions. You also need to work long problems out on paper.

Reality check: Practice math with no calculator. This one thing trips up many people who would do well.

The Test Changes as You Go (CAT-ASVAB)

The computer ASVAB changes based on how you do. Get a question right, and the next one gets harder. So you won't get a lot of easy questions. The test keeps pushing you.

Reality check: On the CAT-ASVAB, you can't go back and change an answer. That adds pressure to each question.

3Difficulty by Section (How Hard Each Part Is)

Some ASVAB parts are harder than others. Here is an honest list. It is based on what most people say is hard.

Parts Most People Find Hardest

Mathematics Knowledge (MK)

Hard

It covers algebra, geometry, and some basic trig. Many people have not used this math since high school. You solve equations and work with exponents. You also find areas and volumes.

Example topics: Factoring polynomials, the Pythagorean theorem, solving for x, exponent rules, geometry formulas

Arithmetic Reasoning (AR)

Hard

These are word problems. You turn a real-life story into math. The math itself is not hard. The hard part is finding the right steps fast, with the clock running.

Example topics: Percents, ratios, distance/rate/time, profit, mixtures, probability (chance)

Electronics Information (EI)

Special Skill

Have you studied electronics or worked with circuits? If not, this part can feel like a new language. It covers how electricity works. Most high schools don't teach this.

Example topics: Ohm's Law, circuit drawings, resistors, current flow, AC vs DC, naming basic parts

Medium Hard

Mechanical Comprehension (MC)

Medium

This part tests basic physics and simple machines. Do you have a feel for how machines work? Then it is not too bad. If not, you will need to study for it.

General Science (GS)

Medium

It covers life science, physical science, and earth science. The questions are not deep. But they cover a lot, so you need the basics on many topics.

Auto & Shop Information (AS)

Needs Hands-On Skill

It is easy if you have worked on cars or in a shop. It is hard if you have not. This part tests hands-on know-how. There is no way around that.

Easier for Most People

Word Knowledge (WK)

Easier

This is a vocabulary test. It asks what words mean. If you read a lot, you will likely do well. If not, you can still learn more words. Use flash cards and practice every day.

Paragraph Comprehension (PC)

Easier

This part tests basic reading. Most people can do well with practice. Time still matters. There are only 11 questions, but you must read each one with care.

Assembling Objects (AO)

Easy to Learn

This part tests how well you can picture shapes in your mind. Some people find it easy. Others find it hard. The good news: you get much better with practice. And it only counts for Navy scores.

4Score Requirements by Branch

Each military branch has its own lowest AFQT score. Here are the official lowest scores. Keep in mind that many jobs need higher scores.

BranchLowest AFQTWith GEDNotes
Army3150Has a prep class for scores 21-30
Marines3150Only 5% of recruits can have just a GED
Navy3150GED holders need 15+ college credits
Air Force3150Many jobs need higher scores
Space Force3150Very hard to get in
Coast Guard3647Needs the highest score; hardest to get in

What These Numbers Mean

  • A score of 31 means you did better than 31% of the test group
  • The average score is 50 on purpose. So the lowest passing score is below average.
  • Many popular jobs (IT, medical, intelligence) need AFQT scores of 65+
  • Line scores (groups of subtest scores) decide which jobs you can get. The AFQT is not the only score.

5Who Finds the ASVAB Hardest

Some groups find the ASVAB harder than others. See if you are in one of these groups. It helps you study the right way.

Years Out of School

Has it been 3+ years since your last math class or school reading? Then plan for more study time. Skills like algebra and reading fade when you don't use them.

Weak Math Basics

Was math hard for you in school? Then you will need time to rebuild the basics. The ASVAB tests ideas, not just facts you memorize. You need to know the "why."

Not Much Reading

Word Knowledge and Paragraph Comprehension need a good vocabulary. If you don't read much, you will need to learn new words. Work on it a little every day.

Test Stress

The ASVAB is timed, and a lot rides on it. That can make you nervous. Nerves can hurt your score. If this sounds like you, practice with a timer.

Who Usually Does Well

  • Recent high school grads who took hard math classes
  • People with hands-on hobbies (cars, electronics, building)
  • People who read a lot and know many words
  • People who study their weak spots and take practice tests

6How to Get Ready

Here is honest advice. It is based on how hard the ASVAB really is for most people.

1. Take a Practice Test First

Before you study, take a full practice test. It shows where you stand. Don't skip this step. You need to know your real weak spots, not the ones you guess.

Your first score shows how much you need to study. Are you 15 points below your goal? Plan for 6-8 weeks. Only 5 points away? 2-3 weeks may be enough.

2. Focus on AFQT Subjects First

Your AFQT score decides if you can join. It comes from Arithmetic Reasoning, Math Knowledge, Word Knowledge, and Paragraph Comprehension. If you can only study four subjects, study these four.

Study math first if it is your weak spot. AR and MK make up half your AFQT score. Math also takes longer to relearn than words.

3. Practice Without a Calculator

This is a big one. Do every math problem by hand. Learn to do simple math in your head. Get used to working problems out on paper.

Speed matters. Practice until simple math feels fast. Slow math eats up time you need for hard problems.

4. Practice Like It's Test Day

Take a full practice test at least 2-3 times before test day. Use a strict timer. Take no breaks and use no help. The real test adds stress. You need to be ready for it.

Don't just practice until you get questions right. Practice until you get them right with the clock running.

The Bottom Line

The ASVAB is not too hard, but don't walk in without studying. Most people with a high school education can pass. They just need a few weeks of focused study. But keep this in mind:

  • • If you want more than the lowest score, you need to study
  • • If you have been out of school, you will need to relearn old skills
  • • If you want popular jobs, aim far above the lowest score

The good news: most people raise their scores a lot when they study. The test checks skills you can learn and practice. It does not measure something you can't change.