● Free ASVAB prep platform
ASVAB calculator for every branch
AFQT, GT & line scores.
Army, Navy, Air Force, Marines, Coast Guard, Space Force, plug in your subtest scores and see every job you qualify for. No scores yet? Take the 30-question diagnostic to estimate your AFQT first.
No scores yet? Take the 30-question diagnostic →
30 questions · 36 minutes · no signup required
● Close doesn't qualify
You're short for the job you want, and most apps just show you that, then upsell you.
ASVAB Hero turns “you're short by X for the job you want” into a free daily plan that targets the exact subtests most likely to move your score, built on the methods cognitive science shows actually work, not the rereading most apps sell.
One adaptive block a day
The app picks the right question at the right difficulty across your four AFQT subtests. Free.
Your misses come back
Every question you miss is saved and resurfaced on a spaced schedule until you own it. Free.
A plan, not a pile
A weekly routine aimed at your test date, exactly what to do today. Free.
Watch the gap close.
Diagnose, clear your misses, do one adaptive block, repeat. Here's what it does to your score.
● How the daily loop closes the gap
Diagnose
See exactly where you stand.
Clear your Mistake Bank
Every miss comes back until you own it.
One adaptive block
The right question, at the right difficulty.
An illustration of the daily loop, not a guaranteed result. How far your score climbs depends on the reps you put in.
Free account · no card · the score-moving core is free
● Why it works
Built on the methods research proves raise scores.
Retrieval practice, spaced repetition, and interleaving, the methods cognitive science proves raise scores, not the rereading most apps rely on.
See the scienceEvery topic has items at every difficulty. Every question has a written explanation. PAY97 norming table for AFQT, same calibration the DoD uses.
● Why recruits trust ASVAB Hero
Built on the study methods cognitive science shows actually raise scores, retrieval practice, spaced repetition, interleaving, and adaptive difficulty , not the rereading most apps rely on.
● Free vs Pro
Free raises your score. Pro removes every limit.
Free, no card
- Daily adaptive AFQT block
- Mistake Bank with spaced review
- Weekly plan aimed at your test date
- Diagnostic + every score calculator
Pro, when you're ready
- Unlimited adaptive practice + subtest drills
- Full-length timed simulations
- Score history + deeper analytics
- Spaced-repetition flashcards
90-Day Pass $59 one-time, or $14.99 / month. Compare plans →
Money-back guarantee on Pro · the 90-Day Pass has nothing to cancel
● Browse the tools
Calculator, practice, and study guides.
Score Calculator
Plug in your subtest scores. See every job you qualify for across all 6 branches plus your AFQT percentile.
Open calculatorPractice Tests
Diagnostic plus subtest drills. Per-question explanations on every item. Track weak topics over time.
Take a testStudy Guide
Worked examples, formula references, and pitfalls for every topic on the test. Free to read.
Browse topicsJump to a specific calculator
New to the scoring? Start with the Army GT score guide, or browse the full Navy ratings list with required scores.
Not sure what you're aiming for? See the ASVAB score requirements for every branch →
● Quick reference
ASVAB scoring and math, explained.
What math is on the ASVAB?
Two subtests test math. Arithmetic Reasoning (AR) gives you 16 word problems in 39 minutes, about 2.5 minutes each, covering ratios, percentages, distance-rate-time, and unit conversions. Mathematics Knowledge (MK) gives you 16 direct math problems in 20 minutes, 75 seconds each, split roughly 55% algebra and 45% geometry. No calculator is allowed. No formula sheet is provided.
| AR | MK | |
|---|---|---|
| Questions | 16 | 16 |
| Time | 39 min (~2.5 min/q) | 20 min (~75 sec/q) |
| Format | Word problems | Direct math |
| Top topics | Ratios, D=RT, percentages | Algebra (~55%), Geometry (~45%) |
For targeted prep strategies, see our ASVAB math tips and arithmetic reasoning tips guides.
How is the AFQT score calculated?
VE (Verbal Expression) is derived from Word Knowledge and Paragraph Comprehension. AR is Arithmetic Reasoning. MK is Mathematics Knowledge. The raw score is converted to a percentile (1-99) using the 1997 PAY97 norming table. Math (AR + MK) controls half the formula. Every point you gain on either math subtest adds one point to your AFQT.
The GT composite uses a different formula: GT = VE + AR. It determines job eligibility, not enlistment eligibility. Calculate your GT score →
How long should I study for the ASVAB?
Three to six weeks of structured daily practice (30-60 minutes) typically yields a 10 to 20 point AFQT improvement. The Army's Academic Skills Development Program documented an average 17-point AFQT increase in 3 weeks of structured study, with one case going from a 38 to a 72 AFQT, a 34-point gain. Consistency beats intensity: 30 focused minutes daily outperforms a weekend cram session.
Start with a free diagnostic test to find your weak spots, then follow the study guide to target them.
Can you use a calculator on the ASVAB?
No. Calculators are not allowed on any ASVAB section, including Arithmetic Reasoning and Mathematics Knowledge. You receive scratch paper for working out problems by hand. This applies to both the CAT-ASVAB at MEPS and the paper-and-pencil version. Every formula, fraction-decimal conversion, and arithmetic operation must be done from memory.
● Popular guides and references
Everything you need for the ASVAB
Free guides to scores, military careers, and the test itself, plus the tools to plan your prep.