What ASVAB scores actually mean
Raw answers, subtest standard scores, the AFQT percentile and service line scores — and why "a good score" depends entirely on what you want to do.
From raw answers to a percentile
You answer questions, and your raw answers are converted into a standard score for each subtest. Four of those subtests — Arithmetic Reasoning, Mathematics Knowledge, Word Knowledge and Paragraph Comprehension — combine into the AFQT, which is reported as a percentile from 1 to 99 against a national reference sample. The other six feed service-specific composite (line) scores.
The exact composite formulas and the reference population are administration facts this site does not state until it has verified them. The official source is officialasvab.com.
Why "a good score" depends on what you want to do
The AFQT determines whether someone may enlist at all. The line scores determine which jobs someone qualifies for. A score that is good for one goal may not be good for another, so the question only has an answer in the context of a specific goal.
This site does not predict either number. It reports raw correct counts per subtest, which is exactly as much as an uncalibrated question bank can truthfully tell anyone.
The number everyone talks about is one of several
The AFQT is the number most people mean when they say "my ASVAB score." But it is one of several numbers the test produces. The subtest standard scores and the line scores answer different questions, and they matter for different decisions.
Common questions
- What is a good ASVAB score?
- It depends entirely on what you want to do. The AFQT determines whether someone may enlist at all, and the line scores determine which jobs they qualify for. A score that is good for one goal may not be good for another, so the question only has an answer in the context of a specific goal.
- What is the difference between the AFQT and line scores?
- The AFQT is a percentile from four subtests that determines enlistment eligibility. Line scores are service-specific composites from the other subtests that determine which jobs someone qualifies for. They answer different questions.
- Is this an official explanation?
- No. This is an original guide written for this site. Where the exact composite formulas are concerned, this site does not state a figure it has not verified, and links to the official source instead.