ASVAB Line Scores: The Numbers That Decide Your Job

AFQT gets you in, line scores get you the job

It helps to separate two different scores that both come out of the same test day. The AFQT is a percentile from 1 to 99 built from four subtests (Arithmetic Reasoning, Mathematics Knowledge, and Verbal Expression, which is Word Knowledge plus Paragraph Comprehension). It answers one question: are you eligible to enlist at all? Each branch sets its own minimum AFQT to walk through the door.

Line scores, also called composite or aptitude scores, answer a different question: which jobs are open to you? They are built from your standard scores on individual subtests, and they include subtests the AFQT ignores entirely, like General Science, Electronics Information, Mechanical Comprehension, and Auto & Shop Information. A recruit with a strong AFQT but weak mechanical scores may qualify to enlist yet still fall short of the composite a specific mechanic or electronics job requires.

Every branch builds its composites differently

There is no universal "line score." Each branch decides which subtests to add together and what to call the result. Here is how the services group the same nine subtests.

Notice the overlap. The Army's GT (General Technical) and the Marines' GT both lean heavily on verbal and arithmetic reasoning, the same skills that drive your AFQT. That's why building strong reading and math fundamentals pays off twice: once for eligibility, and again for the technical and leadership tracks that GT unlocks.

Which subtests feed which composites

The exact formulas vary by branch, but the subtests cluster into recognizable families. If you know what field you're aiming for, you can predict which subtests matter most.

Common groupings

• Technical / General (GT, General, ST): Word Knowledge, Paragraph Comprehension, Arithmetic Reasoning, sometimes Mathematics Knowledge. Gates intelligence, admin, medical, and many leadership-track jobs.
• Electronics (EL, Electronics): General Science, Arithmetic Reasoning, Mathematics Knowledge, Electronics Information. Gates avionics, radar, cyber-adjacent, and communications roles.
• Mechanical (MM, Mechanical): Arithmetic Reasoning, Mechanical Comprehension, Auto & Shop Information, sometimes Electronics Information. Gates vehicle maintenance, powertrain, and heavy-equipment jobs.
• Clerical / Administrative (CL, Administrative): Verbal Expression plus math. Gates HR, finance, and supply roles.
• Surveillance & Combat, Field Artillery, and others: mix mechanical, verbal, and science subtests depending on the branch.

The practical takeaway: the four AFQT subtests never stop mattering, because they appear inside almost every composite. But if you want a hands-on technical rating, the "extra" subtests, GS, EI, MC, AS, become the difference between qualifying and not.

How to aim your studying at a target job

Working backward from the job is the smartest way to study. Here's the sequence.

1. Pick a target job or two. Browse roles that interest you and note the composite each one requires. For the Army, our Army jobs and ASVAB scores guide lists line-score minimums by MOS.
2. Trace the composite back to its subtests. Use the groupings above (or your recruiter's job list) to see exactly which subtests feed that number.
3. Protect the AFQT four first. AR, MK, WK, and PC gate your eligibility and sit inside nearly every composite, they are non-negotiable.
4. Add the job-specific subtests. Chasing an electronics rating? Put real time into General Science and Electronics Information. Want to turn wrenches? Prioritize Mechanical Comprehension and Auto & Shop.
5. Confirm the current minimum. Requirements shift, so verify the exact composite target with a recruiter before you lock in your plan.

If you're still early in the process, start with what the ASVAB is and how to study for it, then come back to line scores once you have a job in mind. And once you enlist in the Army, the same habit of working toward a number carries over, you'll be tracking promotion points on the way to your next stripe.