How do Navy ASVAB scores work, and what score do you need?
TL;DR — Quick Answer
The Navy uses ASVAB sub-test results to calculate "line scores" — composites that gate access to specific ratings. Your AFQT score determines whether you can enlist at all (minimum 35 for most applicants), while your line scores determine which jobs you're eligible for. Higher scores open up technical, high-demand ratings with better bonuses and civilian career potential.
What is the AFQT and why does it matter?
The Armed Forces Qualification Test (AFQT) is a percentile score calculated from four ASVAB sub-tests: Arithmetic Reasoning (AR), Mathematics Knowledge (MK), Paragraph Comprehension (PC), and Word Knowledge (WK). The Navy requires a minimum AFQT of 35 for most applicants (31 for those with a high school diploma who score in certain ranges). Your AFQT score determines whether you can enlist — it has nothing to do with which ratings you qualify for. That's where line scores come in.
What are Navy line scores?
Line scores are composite scores calculated by adding or multiplying specific ASVAB sub-test raw scores together. The Navy uses about a dozen different line scores, including VE (Verbal Expression), AR (Arithmetic Reasoning), MK (Math Knowledge), MC (Mechanical Comprehension), EI (Electronics Information), GS (General Science), and several others. Each Navy rating specifies a minimum score on one or more line scores. For example, the IT rating might require an EL (Electronics) line score of 222, while HM (Hospital Corpsman) requires an HM composite of 227.
How are line scores calculated?
Line scores are not the same as scaled ASVAB scores. They are calculated from the raw scores (number of questions answered correctly) on each sub-test, which can reach values well above 100 when added together. For instance, the EL (Electronics) line score is calculated as AR + MK + EI + GS. A perfect raw score on all four sub-tests would yield an EL of roughly 248. The Navy's ASVAB calculator on this site shows you how your sub-test scores translate into each line score.
Which ratings require the highest scores?
The most technically demanding ratings — Cryptologic Technician (CT), Nuclear Field (NF), and some Intelligence ratings — require the highest line scores and sometimes also require additional security vetting. Nuclear Field candidates, for example, must score a minimum of 252 on the NAPT (Nuclear Field ASVAB) in addition to meeting line score requirements. In contrast, ratings like Culinary Specialist (CS) or Seaman (undesignated) have lower or no specific line score requirements beyond the AFQT minimum.
Can you retake the ASVAB to qualify for better ratings?
Yes, with restrictions. You must wait at least one calendar month after your initial test before retaking the ASVAB, and an additional month before a second retest. After that, you must wait six months between attempts. If you scored just below the minimum for a desired rating, a targeted study plan focusing on the specific sub-tests that feed the relevant line score can make a meaningful difference. Many applicants improve by 15–25 points on targeted sub-tests with focused preparation.
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Related Questions
What is a Navy rate, and how do Navy ratings work?
In the Navy, a "rate" is your job title combined with your rank — it tells everyone both what you do and where you stand in the enlisted hierarchy. Every enlisted sailor is assigned a rating (such as IT, HM, or BM) that defines their occupational specialty. Understanding your rate is the first step to choosing the right Navy career.
Read answer →How do you choose the right Navy rate for you?
Choosing a Navy rate means weighing your ASVAB scores, lifestyle preferences, civilian career goals, and willingness to deploy or go to sea. Start by identifying which ratings you're eligible for, then narrow the list by what matters most to you — pay, stability, adventure, or technical challenge. The right rate is the one that aligns with both your military service and your post-Navy life.
Read answer →What security clearances do Navy rates require, and what can disqualify you?
Many Navy ratings require a security clearance — Confidential, Secret, or Top Secret/SCI — before you can work in your specialty. Clearances are granted by the Department of Defense based on a background investigation covering your financial history, criminal record, foreign contacts, and personal conduct. Disqualifiers include recent drug use, significant debt, foreign citizenship, and certain criminal convictions.
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