Marine Corps ASVAB score: the floor and the four composites
Type your AR, VE and MC, then open the other subtests: the calculator gives your Marine Corps GT, MM, EL and CL with the published formulas.
Marine Corps GT score
102
AFQT 53; Marine minimum 31 (50 with a GED).
| GT, General Technical = AR + MC + VE | 102 |
| MM, Mechanical Maintenance = AR + MC + EI + AS | 101 |
| EL, Electronics Repair = GS + AR + MK + EI | 101 |
| CL, Clerical = MK + VE | 102 |
Exact formulas of Segall (2004), section 2.5.2: rounded linear transformation of the sum of standard scores, mean 100 and standard deviation 20.
Prepared by Radif Partners · Method · official sources read on October 22, 2026 · published formulas and tables
The Marine Corps asks for an ASVAB score of 31 or higher, or 50 or more for applicants holding a GED or a nontraditional diploma, as marines.com states; in sums of standard scores, 183 and 202 on AR + MK + 2VE. Jobs then read four composites, placed on a scale with a mean of 100 and a standard deviation of 20: GT adds AR, MC and VE; MM adds AR, MC, EI and AS; EL adds GS, AR, MK and EI; CL adds MK and VE. Each sum goes through a rounded linear transformation published in the 1997 score scale report, so the results are exact for the scores you enter. With 50 on every subtest, the four composites come out at 100, 100, 100 and 100. Unlike the Army GT, the Marine GT includes Mechanical Comprehension, so the two cannot be swapped.
The enlistment floor
The Marine Corps requirements page states that aspiring Marines must reach a minimum ASVAB score of 31 or higher, or 50 or more when holding a GED or nontraditional diploma, alongside the Initial Strength Test and the other requirements. The score meant is the AFQT percentile. The gap between the two floors is large: nineteen points of the AR + MK + 2VE sum, so a GED holder needs to plan for it. The GED page works through that case.
The four composites, exactly
Section 2.5.2 of the 1997 score scale report defines the Marine Corps composites as unit-weighted sums of standard scores, then standardizes each to a mean of 100 and a standard deviation of 20 in the 1997 youth sample. With the published means and standard deviations, each one becomes a single line: a slope, a constant, then rounding. The table gives the four lines and their results for one example profile.
| Composite | Sum S of | Transformation | Example |
|---|---|---|---|
| GT | AR + MC + VE | 0.755294 × S - 13.289535 | 104 |
| MM | AR + MC + EI + AS | 0.588215 × S - 17.645724 | 108 |
| EL | GS + AR + MK + EI | 0.577992 × S - 15.599795 | 99 |
| CL | MK + VE | 1.092264 × S - 9.232992 | 95 |
The report notes that the Clerical composite was not used operationally when it was written and was included in anticipation of its use. The calculator computes it like the others; whether a given job reads it is a question for your recruiter.
Compare with the Army and Air Force from the same scores
Army GT line score
100
| Air Force M / A / G / E | 47 / 49 / 49 / 50 |
| Marine MM / GT / EL / CL | 100 / 100 / 100 / 100 |
A mechanical profile
In the example, an applicant with strong Auto and Shop and Mechanical Comprehension but a VE of 48 gets an MM of 108, above average, while the AFQT is 43. Mechanical Comprehension also enters the GT, which is why the Marine GT rewards technical aptitude more than the Army one does. For the same scores, the Army GT is 100 and the Marine GT 104. Mechanical subtests are trained on the Mechanical Comprehension and Auto and Shop practice pages.
Which composite for which field
The names describe the families of jobs that read them: MM for mechanical maintenance, EL for electronics repair, GT for general technical fields and many specialties that require reasoning and reading, CL for clerical and administrative work. Many specialties ask for one of them with a minimum, and some ask for two. This site does not publish those minimums, because the current list could not be read, but it gives you the four numbers to compare.
Raising a composite
Each composite is a plain sum before the transformation, so every subtest in it counts equally. One more point in any of the subtests of MM raises MM by about 0.59 before rounding; one more point in MK or VE raises CL by about 1.09, since CL has only two subtests. The weakest subtest in the composite you need is usually where practice pays most. Retests follow the usual waiting periods, one month, one month, then six months, and the whole battery is retaken each time.
Checking your sheet
If your recruiter gave you the four composites, enter your standard scores and compare. The formulas are exact, so the numbers should match to the point. A difference usually comes from a misread subtest, often AS, which on the computer test combines Auto Information and Shop Information into a single score, or VE, which is easy to confuse with WK. When the numbers match, you can use the calculator to try what a retest would change: add three points to Mechanical Comprehension and watch GT and MM move together, or add them to VE and see GT and CL rise along with the AFQT.