If you are preparing for the Professional Engineering (PE) exam, understanding PE exam pass rates is one of the smartest things you can do before you begin studying. These statistics reveal which disciplines are the most challenging, how first-time takers compare to repeat takers, and what preparation strategies actually move the needle.
The PE exam is the final step toward earning your Professional Engineer license -- a credential that unlocks higher-level responsibilities, the ability to seal engineering drawings, and significantly increased earning potential. For a complete preparation strategy, see our guide on how to pass the PE Civil exam. But how hard is the PE exam, really? The answer depends heavily on which discipline you are taking, how you prepare, and whether it is your first or subsequent attempt.
In this comprehensive guide, we break down PE exam pass rates across all major disciplines, take a deep dive into PE Civil pass rates by depth area, compare the PE to the FE exam, and give you a data-driven plan to improve your odds of passing.
Overall PE Exam Pass Rates: First-Time vs. Repeat Takers
NCEES administers the PE exam across more than 25 discipline-specific versions. While individual pass rates vary by discipline and testing window, the overall patterns are remarkably consistent from year to year.
Key Statistic: The overall PE exam first-time pass rate typically falls between 55% and 70%, depending on the discipline. Repeat takers see a significantly lower pass rate of approximately 25% to 40%. This gap is even wider than the equivalent gap on the FE exam.
These numbers carry an important message. The PE exam is harder than the FE exam by nearly every measure -- it covers more advanced material, requires deeper understanding, and demands the ability to apply engineering judgment rather than simply recall formulas. But the majority of well-prepared, first-time takers still pass.
First-Time Pass Rates
First-time PE exam takers benefit from several advantages: they are typically studying with fresh momentum, they have recently invested significant time in preparation, and they have not yet developed the discouragement that can come from a failed attempt. Across all disciplines, first-time takers pass at roughly 55-70%, with some disciplines reaching as high as 75-80%.
Repeat Taker Pass Rates
Repeat takers face a steeper challenge. Across disciplines, repeat taker pass rates drop to approximately 25-40%. This is not because the exam gets harder on the second attempt -- the exam itself is randomly generated from the same question pool. The lower rate reflects the fact that many repeat takers do not fundamentally change their preparation approach, study less intensively, or carry exam anxiety from the previous failure.
| Category | Approximate Pass Rate |
|---|---|
| First-time takers (all disciplines) | 55 - 70% |
| Repeat takers (all disciplines) | 25 - 40% |
| Overall combined (all takers) | 45 - 60% |
PE Civil Pass Rates by Depth Area
The PE Civil exam is one of the most widely taken PE exams in the United States. It consists of a breadth portion that covers general civil engineering topics and a depth portion where candidates select one of five specialty areas. Pass rates vary meaningfully across these depth areas, reflecting differences in content difficulty, candidate preparation levels, and the nature of the subject matter.
Construction (~65-70% First-Time)
The PE Civil: Construction depth area consistently posts some of the highest first-time pass rates among the PE Civil specializations, typically in the 65-70% range. Construction questions tend to focus on practical, field-oriented topics including earthwork, estimating, scheduling, safety, and temporary structures. Many candidates find this depth area more intuitive because the concepts align closely with day-to-day construction engineering work.
Candidates who work in construction management or field engineering often have a natural advantage, as many exam questions reflect real-world scenarios they encounter regularly. However, areas like temporary structures and means and methods can trip up candidates who rely solely on work experience without studying the theoretical underpinnings.
Geotechnical (~60-65% First-Time)
The Geotechnical depth area sees first-time pass rates of approximately 60-65%. Geotechnical engineering covers soil mechanics, foundation design, earth retaining structures, slope stability, and seepage analysis. The subject matter requires strong analytical skills and comfort with interpreting soil boring logs, lab test data, and complex soil behavior models.
Candidates who struggle in this depth area often cite difficulty with the sheer breadth of geotechnical topics -- from consolidation theory to bearing capacity calculations to seismic considerations. Success requires methodical preparation across all subtopics, not just the ones encountered in daily practice.
Structural (~55-60% First-Time)
The Structural depth area has the lowest first-time pass rate among PE Civil depth areas, typically falling in the 55-60% range. Structural engineering questions cover analysis and design of steel, concrete, timber, and masonry structures, along with load path determination, connection design, and code compliance.
Why Structural Is Harder: The PE Civil Structural depth requires candidates to work with multiple design codes (ACI 318, AISC Steel Manual, NDS, MSJC) simultaneously, perform detailed calculations under time pressure, and demonstrate understanding of complex structural behavior. This combination of breadth and depth makes it the most challenging PE Civil specialty.
If you are planning to take the Structural depth, allocate extra study time -- at least 20-30% more than you would for other depth areas. Many structural candidates also benefit from taking a structured review course that covers all relevant design codes systematically.
Transportation (~65-70% First-Time)
Transportation engineering sees first-time pass rates comparable to Construction, typically in the 65-70% range. The depth area covers highway design, traffic engineering, geometric design, pavement design, and traffic safety. Many of the calculations are formula-driven and well-suited to systematic study.
Candidates with experience in highway design or traffic engineering often find this depth area approachable because the exam questions frequently parallel the types of analyses performed in practice. Key study areas include the AASHTO Green Book, HCM (Highway Capacity Manual), and MUTCD (Manual on Uniform Traffic Control Devices).
Water Resources and Environmental (~60-65% First-Time)
The Water Resources and Environmental depth area has first-time pass rates of approximately 60-65%. Topics include hydrology, hydraulics, open channel flow, water and wastewater treatment, groundwater, and stormwater management.
This depth area covers a wide range of sub-disciplines, which can make preparation challenging. Candidates need to be comfortable with both the engineering science (hydraulics, hydrology) and the regulatory and treatment aspects (drinking water standards, wastewater processes). Success typically requires covering all topic areas rather than focusing only on areas of professional expertise.
| PE Civil Depth Area | First-Time Pass Rate | Difficulty Level |
|---|---|---|
| Construction | ~65-70% | Moderate |
| Transportation | ~65-70% | Moderate |
| Water Resources & Environmental | ~60-65% | Moderate-High |
| Geotechnical | ~60-65% | Moderate-High |
| Structural | ~55-60% | High |
Historical Trends: How PE Exam Pass Rates Have Changed
PE exam pass rates have not remained static over the years. Several major shifts in exam format, delivery method, and content have influenced passing percentages over the past two decades.
The Transition to Computer-Based Testing
NCEES began transitioning PE exams from pencil-and-paper format to computer-based testing (CBT) starting in 2019, with the PE Civil exam moving to CBT in 2022. This transition brought several significant changes:
- Year-round testing windows: Instead of being limited to two exam dates per year (April and October), candidates can now schedule exams during quarterly testing windows, allowing for more flexible preparation timelines.
- Digital reference materials: The CBT format provides a searchable PDF version of reference materials during the exam, changing how candidates need to prepare for finding information quickly.
- Immediate preliminary results: Candidates no longer wait months for results, reducing the anxiety of the waiting period.
In the initial years following the CBT transition, some disciplines saw slight dips in pass rates as candidates adjusted to the new format. However, pass rates have generally stabilized and, in many cases, returned to pre-transition levels as preparation materials and candidate familiarity with the CBT format have improved.
Long-Term Trends
Looking at the broader historical picture, PE exam pass rates have shown these patterns:
- Gradual standardization: As NCEES has refined its exam development process and psychometric methods, pass rates have become more consistent from year to year within each discipline.
- Persistent first-time vs. repeat gap: The gap between first-time and repeat taker pass rates has remained wide (20-30 percentage points) throughout every era of the exam, regardless of format changes.
- Discipline-specific fluctuations: Some disciplines see year-to-year variations of 5-10 percentage points, reflecting changes in the candidate pool, content updates, and exam difficulty calibration.
PE vs. FE Exam Pass Rate Comparison
If you have already passed the FE exam, you may be wondering how the PE exam compares in terms of difficulty. The short answer: the PE exam is harder, and the pass rates reflect this.
| Metric | FE Exam | PE Exam |
|---|---|---|
| First-time pass rate | 65 - 73% | 55 - 70% |
| Repeat taker pass rate | 30 - 40% | 25 - 40% |
| Number of questions | 110 | 80 |
| Exam duration | 5 hr 20 min | 8-9 hours |
| Typical candidates | Students / recent grads | 4+ years experience |
| Knowledge depth | Fundamental concepts | Practice-level application |
The PE exam tests practice-level engineering knowledge -- the kind of judgment and problem-solving ability that comes from years of professional experience. While the FE exam assesses whether you understand fundamental engineering concepts, the PE exam evaluates whether you can apply those concepts to real-world engineering problems at a level expected of a licensed professional.
For a detailed comparison of these two exams, including eligibility requirements and study strategies, see our guide on FE vs. PE Exam: Key Differences.
Important Perspective: Even though PE pass rates are lower than FE pass rates, remember that PE candidates are experienced engineers who have already passed the FE exam. The lower pass rates reflect the increased difficulty of the content, not a less qualified candidate pool.
Factors That Affect Your Chances of Passing
PE exam pass rates are population-level statistics. Your individual probability of passing depends on several controllable and semi-controllable factors. Understanding these factors allows you to strategically improve your odds.
Study Hours Invested
Successful PE candidates typically follow a structured PE Civil exam study plan for 300-500+ hours over 3-6 months. Candidates who study fewer than 200 hours pass at significantly lower rates than the national average.
Quality of Practice Problems
Solving realistic, exam-format practice problems with detailed solutions is the single most effective preparation method. Passive reading of reference manuals alone is insufficient.
Relevant Work Experience
Candidates whose daily work aligns with their chosen depth area have a natural advantage. Real-world problem-solving experience translates directly to exam performance.
Reference Material Familiarity
The PE exam allows you to bring reference materials (for pencil-and-paper exams) or provides digital references (for CBT). Knowing exactly where to find information saves critical time.
Depth Area Selection
For PE Civil candidates, your choice of depth area significantly impacts your pass probability. If your work experience closely aligns with a particular depth area, that is almost certainly the best choice -- even if that depth area has a slightly lower overall pass rate. A structural engineer with years of steel and concrete design experience will likely perform better on the Structural depth than on the Transportation depth, despite the latter's higher average pass rate.
However, if your experience spans multiple areas equally, the pass rate data can help inform your decision. Construction and Transportation depth areas tend to have the highest pass rates, making them strategic choices for candidates without a strong specialty preference.
Time Management on Exam Day
Many candidates who fail the PE exam report running out of time as a major factor. The PE exam requires solving 80 questions across an 8-9 hour day (split into morning and afternoon sessions). Successful candidates develop a pacing strategy during preparation and stick to it on exam day. A common approach is to make a first pass through all questions, answering those you can solve quickly, then returning to the more time-consuming problems.
How to Improve Your Odds of Passing the PE Exam
The PE exam pass rate data, while informative, does not have to define your outcome. Here is a proven, data-driven strategy to place yourself firmly on the passing side of the statistics.
1. Start Studying Early -- At Least 3 to 6 Months Out
The PE exam covers an enormous breadth of material. Unlike the FE exam, where you may have studied the material recently in college, the PE exam often tests topics you have not touched in years. Starting early gives you time to relearn forgotten material, practice extensively, and build exam stamina without the stress of a compressed timeline.
2. Build a Study Plan Organized by Topic Weight
Not all PE exam topics carry equal weight. Review the NCEES PE exam specification for your discipline and allocate study time proportional to each topic's percentage of the exam. Spend more time on heavily weighted areas and areas where you feel less confident, and less time on topics you use daily in practice.
3. Solve Hundreds of Practice Problems
There is no substitute for practice. The most successful PE candidates solve 500 to 1,000+ practice problems during their preparation. Focus on problems that match the exam format, difficulty level, and time constraints. After solving each problem, review the solution thoroughly -- understanding why the correct answer is right and why the other options are wrong is more valuable than simply checking your answer.
4. Take Full-Length Practice Exams Under Timed Conditions
At least 2-4 weeks before your exam date, begin taking full-length, timed practice exams. Simulate exam-day conditions as closely as possible: sit for the full duration, use only your allowed references, and enforce strict time limits. This builds the endurance and pacing skills you need for an 8-9 hour exam day.
5. Master Your Reference Materials
Whether you are taking a CBT exam with digital references or a pencil-and-paper exam with physical books, knowing your reference materials inside and out is a massive advantage. Tab and organize your references by topic. Practice looking up formulas, tables, and design values until you can find any piece of information in under 30 seconds.
6. Focus on Breadth Mastery First
The PE Civil exam breadth section covers 40 questions across all civil engineering topics. Because every PE Civil candidate takes the same breadth section regardless of their depth area, mastering the breadth gives you a strong foundation and a scoring cushion that makes the depth section less pressured.
Pro Tip: Candidates who score well on the breadth section can afford to miss a few more questions on the depth section and still pass. Build your breadth foundation first, then layer depth-specific preparation on top.
7. If You Are a Repeat Taker, Change Your Approach Completely
If you have previously failed the PE exam, the data is clear: doing the same thing again will likely produce the same result. Analyze your diagnostic report from NCEES, identify the topic areas where you underperformed, and make targeted changes. Consider switching study materials, enrolling in a review course, joining a study group, or using an exam simulation platform that provides detailed performance analytics.
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View Pricing PlansFrequently Asked Questions About PE Exam Pass Rates
The overall PE exam pass rate for first-time takers typically falls between 55% and 70%, depending on the discipline. Repeat takers see significantly lower pass rates, generally in the 25-40% range. The combined overall pass rate (all takers) is approximately 45-60%. These figures are approximate and vary by discipline and testing window.
The PE exam is generally considered harder than the FE exam. FE first-time pass rates average 65-73%, while PE first-time pass rates average 55-70%. The PE exam tests deeper, practice-level knowledge, requires years of professional engineering experience, and demands the ability to apply engineering judgment to complex, real-world scenarios. The exam is also significantly longer (8-9 hours vs. 5 hours 20 minutes for the FE). Learn more in our FE vs. PE Exam comparison guide.
The PE Civil exam first-time pass rate varies by depth area: Construction (~65-70%), Transportation (~65-70%), Water Resources and Environmental (~60-65%), Geotechnical (~60-65%), and Structural (~55-60%). The overall PE Civil first-time pass rate across all depth areas is approximately 60-70%. Repeat taker rates drop to approximately 25-35%.
PE exam pass rates vary by discipline and year. Generally, disciplines like Industrial and Systems Engineering, Agricultural and Biological Engineering, and Control Systems Engineering tend to have higher first-time pass rates, often in the 70-80% range. However, these disciplines also tend to have smaller candidate pools, which can cause more year-to-year variability. Among high-volume disciplines, PE Mechanical and PE Civil Construction tend to have among the highest pass rates.
NCEES policies allow candidates to retake the PE exam, but specific limitations vary by state. Most states allow unlimited attempts, though some impose waiting periods between attempts (typically 3-6 months) or limit the total number of attempts. A few states require candidates who fail multiple times to complete additional education before retaking the exam. Always check with your specific state licensing board for the rules that apply to you.
Repeat taker pass rates are lower primarily because many candidates retake the exam using the same preparation methods that did not work the first time. Additional contributing factors include loss of study momentum between attempts, increased test anxiety, time constraints from work and family responsibilities, and the psychological burden of a previous failure. The good news: repeat takers who make significant changes to their study approach -- switching materials, enrolling in review courses, or using practice exam platforms -- do pass at much higher rates than those who do not.
Conclusion: What PE Exam Pass Rates Mean for You
PE exam pass rates tell a consistent story across all disciplines and all years: first-time takers who prepare thoroughly have a strong probability of passing, while repeat takers who do not change their approach face an uphill battle. The PE Civil exam, with first-time pass rates of approximately 55-70% depending on depth area, is challenging but absolutely achievable with the right strategy.
The data points to clear success factors: investing 300-500+ study hours over several months, solving hundreds of practice problems under timed conditions, mastering your reference materials, and choosing a depth area that aligns with your professional experience. Candidates who follow this formula consistently outperform the averages.
Whether you are starting your engineering licensure journey with the FE exam or preparing to take the PE exam after years of professional experience, understanding these statistics empowers you to make smarter preparation decisions. Do not let the numbers intimidate you -- let them guide you.
Your individual pass rate is not a fixed statistic. It is a variable that you control through the quality, consistency, and intensity of your preparation. Prepare smart, practice relentlessly, and walk into that testing center knowing you have done everything in your power to earn those two letters after your name: P.E.
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