Test strategy
What Score Do You Need on Practice Tests Before the FAA Knowledge Test
✓ Reviewed against current FAA sources on October 22, 2026
In this guide
In short
Aim for 85 percent or better on three full-length practice exams, taken under test conditions on questions you have not seen in the last week. The FAA knowledge test is 60 questions needing 42 correct to pass, so a candidate whose true mastery is 70 percent fails about 44 times in 100, while one at 80 percent fails about twice in 100. Practice scores run higher than real mastery because the questions are already familiar, so 85 on practice is roughly 80 in truth.
Every study guide tells you to practice until you are scoring well. Almost none of them tell you what well means, and the two best known courses both land on 80 percent without showing any reasoning for it. The number matters, because the gap between a score that feels ready and a score that is ready is where a 175 dollar test fee goes to die.
Here is the arithmetic, which you can check yourself.
Why 70 percent is a coin flip
The Unmanned Aircraft General test and the Private Pilot Airplane test are both 60 questions with 2 hours allotted, and both require 70 percent to pass. Seventy percent of 60 is 42, so you need 42 correct.
Now think about what a score actually is. It is not your knowledge. It is a 60 question sample of your knowledge, and samples vary. Suppose you genuinely know 70 percent of the material cold. On any given test day the questions drawn will land above or below that level roughly evenly. About half the time you clear 42. About half the time you do not.
If you truly know 70 percent
44of 100 fail
Out of 100 candidates who truly know 70 percent of the material, this many walk out without a certificate.
If you truly know 80 percent
2of 100 fail
Ten more points of real mastery takes the same group from a coin flip to a rounding error.
Where the risk actually drops off
The same calculation across the range. Read the first column as what you genuinely know, not what a practice app told you this morning.
| If you truly know | Chance of failing | In plain terms |
|---|---|---|
| 70 percent | 43.7 percent | About 1 in 2. A coin flip. |
| 75 percent | 14.9 percent | About 1 in 7. |
| 78 percent | 5.4 percent | About 1 in 19. |
| 80 percent | 2.2 percent | About 1 in 45. This is the useful target. |
| 85 percent | 0.1 percent | About 1 in 1,000. |
| 90 percent | Under 0.001 percent | Effectively never. |
Swipe the table sideways to see every column.
Notice where the curve stops paying. Moving from 70 to 80 percent takes your risk from 1 in 2 to 1 in 45. Moving from 80 to 90 takes it from 1 in 45 to a number you will never experience, and it costs weeks. Eighty percent real mastery is where the work stops buying you much.
How this is calculated, so you can check it. Each question is treated as an independent draw at your true mastery level, and the chance of landing below 42 correct out of 60 follows from the binomial distribution. Real tests cluster a little, because someone weak in weather tends to miss weather questions together, which makes the true spread slightly wider than shown. That pushes toward a larger safety margin, never a smaller one.
So why does this article tell you to aim at 85
Because the table is about what you know, and a practice score is not a clean measurement of that. It is an inflated one.
You have seen those questions before, often several times. Recognition quietly does part of the work that recall will have to do at the testing center, and the effect is largest for the person who drills the most. The score drifts up while the knowledge underneath it does not.
The FAA's own numbers show the gap. In calendar year 2025, 73,914 people took the Unmanned Aircraft General test. The pass rate was 82.96 percent and the average score was 79.31 percent. The average candidate who passes walks out at 79, not at the 90-something they were posting on practice questions the week before.
So the number you aim at has to sit above the mastery you actually want, to absorb the inflation. Aim at 85 on practice, land near 80 in truth, and you are in the 1 in 45 row.
The readiness rule
Score 85 percent or better on three full-length practice exams, under test conditions, on questions you have not seen in the last week. Then book the test.
- 85 percent, not 80. Eighty is the right level of real mastery. Eighty-five is what that looks like through a question bank you have already met.
- Three exams, not one. A single 60 question test swings about 5 points either side of your true level. One 85 could be a 78 on a good day. Three readings average the noise out.
- Under test conditions. Sixty questions, two hours, nothing open beside you. A score earned with the book open measures the book, not you.
- On questions you have not seen this week. This is the part that keeps the number honest. A fresh exam measures recall. A familiar one measures recognition.
What the score cannot tell you
A percentage tells you whether to book the test. It does not tell you what to fix, and that is the more useful question for everyone who is not there yet.
Three candidates can all sit at 78 percent for completely different reasons. One is losing every chart question. One is guessing on loading and performance. One knows the material and keeps misreading what the question asked. The score is identical and the remedy is not.
That is why our Exam Engine reports by knowledge area rather than as a single number, names the chapter and page to reread, and lets you rebuild a session from only the questions you got wrong. The flashcards work the same way: cards you miss come back soonest, and the ones you have nailed stop taking your time. The score gets you to the door. Knowing what to fix is what gets you through it.
With 1,447 questions in the Part 107 bank against a 60 question test, you can sit a genuinely unseen exam more than twenty times over. That is what makes the fresh-questions rule above something you can actually follow rather than good advice you have no way to act on.
Sources: FAA Airman Knowledge Testing Matrix, revised 25 September 2026, for the question count, time allotted and passing score. FAA Airman Knowledge Test statistics, calendar year 2025, for volume, pass rate and average score. Galesic, Garcia-Retamero and Gigerenzer, Using Icon Arrays to Communicate Medical Risks: Overcoming Low Numeracy, Health Psychology 28(2), 2009, pages 210 to 216, for the presentation of risk above. Failure probabilities computed from the binomial distribution for 42 correct out of 60.