FE Exam Calculator Selector
Find the Best Calculator for Your FE Exam
The NCEES has a strict policy on approved calculators. This tool helps you choose the best calculator for the FE exam based on your preferences and engineering discipline.
Your Recommended Calculator
Formula Explained: This recommendation is not a mathematical calculation but a decision-based algorithm. It weighs your chosen discipline, budget, and brand preference against the known strengths of the three most popular NCEES-approved calculator models: the Texas Instruments TI-36X Pro, the Casio FX-991EX (or similar fx-115 models), and the HP 35s. The “best” choice is the one that scores highest on your priorities.
Dynamic chart comparing top calculators based on your preferences.
The Ultimate Guide to Choosing the Best Calculator for the FE Exam
Choosing the right tool for the job is critical, and when it comes to the Fundamentals of Engineering (FE) exam, your calculator is one of the most important tools you’ll have. The National Council of Examiners for Engineering and Surveying (NCEES) maintains a strict calculator policy to ensure fairness. This guide will help you select the best calculator for the FE exam to maximize your efficiency and confidence on test day.
What is the NCEES Calculator Policy?
The NCEES calculator policy dictates which specific calculator models are permitted during the exam. The goal is to prevent the use of devices with advanced communication, text-storage, or programming capabilities that could provide an unfair advantage. Using a non-approved calculator will result in its confiscation and potential dismissal from the exam. Therefore, understanding this policy is the first step in finding the best calculator for the FE exam.
Common misconceptions include thinking any scientific calculator is fine, or that a more powerful graphing calculator is better. Both are untrue. Only models explicitly listed by NCEES are allowed. The list is short and consists of models from Texas Instruments, Casio, and Hewlett-Packard. Anyone preparing for the exam should purchase one of these approved calculators and practice with it extensively.
Choosing the Best Calculator for the FE Exam: The Decision Formula
While not a mathematical formula, there’s a clear “formula” or decision-making process for selecting the best calculator for the FE exam. It involves weighing several key variables based on your personal needs and study habits. The core of this process is balancing features, usability, and your familiarity with the device.
| Variable | Meaning | Unit / Type | Typical Range |
|---|---|---|---|
| Functionality | The calculator’s ability to perform complex calculations (matrices, vectors, solvers). | Feature Set | Basic scientific to advanced functions. |
| Usability | The intuitiveness of the keypad layout and menu system. | Qualitative Score | Clunky to very intuitive. |
| Price | The retail cost of the calculator. | USD ($) | $15 – $50 |
| Familiarity | Your prior experience with a specific brand or operating system. | Experience Level | Novice to Expert |
This table outlines the key factors to consider when selecting your calculator.
Practical Examples (Real-World Use Cases)
Example 1: The Civil Engineering Student on a Budget
A civil engineering student values practicality and cost-effectiveness. They need a calculator that can handle statistics, unit conversions, and basic matrix operations efficiently. They don’t have a strong brand preference. For them, the best calculator for the FE exam is likely the Casio FX-115ES Plus (or the newer FX-991EX). It comes in under $20, has an intuitive “Natural Textbook Display,” and handles all necessary functions smoothly. Its combination of low price and high functionality makes it a top contender.
Example 2: The Electrical Engineer Who Wants Maximum Power
An electrical and computer engineering student anticipates complex number calculations, matrix algebra, and using solvers. They prefer a multi-line display to track complex entries and are willing to spend a bit more for features. Their best calculator for the FE exam is the Texas Instruments TI-36X Pro. It’s renowned for its powerful solver, easy-to-read display, and excellent handling of vectors and matrices, making it a favorite among many engineering disciplines.
How to Use This FE Exam Calculator Selector
Our interactive calculator at the top of this page is designed to simplify your choice. Here’s how to get the most out of it:
- Select Your Discipline: Choose your engineering field. While all calculators work for all disciplines, some have features that are slightly more advantageous for certain problem types (e.g., complex number handling for electrical engineers).
- Set Your Budget: Indicate your price range. This helps narrow down the options if cost is a primary concern.
- Choose a Brand Preference: If you’ve used a TI or Casio calculator throughout college, sticking with that brand can reduce the learning curve. If not, select “No Preference” to get the most objective recommendation.
- Review the Results: The tool will instantly recommend the best calculator for the FE exam based on your inputs. It provides a primary recommendation and key reasons, helping you understand the “why” behind the choice.
- Analyze the Chart: The dynamic chart visually compares the top models based on general criteria like power, ease of use, and value, giving you a quick overview of the landscape. For more information, you can always check our FE Exam Prep Course.
Key Factors That Affect Your Calculator Choice
Beyond the inputs in our calculator, several deeper factors play a role in determining the best calculator for the FE exam for you.
- Display Style: The TI-36X Pro and Casio FX-991EX feature multi-line or “textbook” displays, which show expressions as you’d write them on paper. This can significantly reduce input errors. The HP 35s uses a more traditional line-based entry.
- Solver Functionality: The TI-36X Pro is often praised for its powerful and easy-to-use numeric solver, which can be a huge time-saver. The Casio and HP models also have solvers, but many users find the TI’s implementation more intuitive.
- Keystroke Logic (RPN vs. Algebraic): The HP 35s offers Reverse Polish Notation (RPN) as an entry option. If you are an RPN user, this is the only choice for you. All other approved calculators use standard algebraic notation.
- Battery vs. Solar: Most approved models are dual-power (solar with a battery backup), ensuring they won’t die mid-exam. The HP 35s is battery-only, so checking your batteries is crucial.
- Complex Number Operations: For electrical and some mechanical engineering problems, the ease of handling complex numbers is vital. Both the TI-36X Pro and Casio FX-991EX perform well here.
- Familiarity and Practice: The absolute best calculator for the FE exam is the one you know inside and out. No feature can replace muscle memory and confidence. Once you choose a model, use it for all your practice problems. Our FE Exam Practice Problems are a great place to start.
Frequently Asked Questions (FAQ)
- What calculators are approved by NCEES for the FE exam?
- As of 2026, the approved models are: Casio fx-115 and fx-991 series, Texas Instruments TI-30X and TI-36X series, and the Hewlett-Packard HP 33s and HP 35s. You can find more resources on our Engineering Licensure Guide.
- Is the TI-36X Pro the best calculator for the FE exam?
- For a majority of users, yes. It offers the best balance of powerful features, ease of use, and a readable display. It is widely considered a top choice across all engineering disciplines.
- Can I use a graphing calculator like the TI-89?
- No. Graphing calculators, and any calculators with communication or significant text storage capabilities (like the TI-89, TI-Nspire, or HP Prime), are strictly prohibited.
- What’s the difference between the Casio FX-115ES Plus and the FX-991EX?
- The FX-991EX is the newer model with a higher-resolution display and a faster processor. It also includes a spreadsheet mode. Both are excellent choices and fully approved. The EX is generally considered a slight upgrade.
- Why would someone choose the HP 35s?
- The primary reason to choose the HP 35s is its support for Reverse Polish Notation (RPN). For engineers accustomed to RPN, it’s a highly efficient way to perform calculations. For non-RPN users, the TI or Casio models are typically more intuitive.
- Should I buy my calculator long before the exam?
- Absolutely. You should purchase your chosen calculator at the beginning of your study period. The goal is to make its operation second nature so you don’t waste precious seconds figuring out functions during the exam. Practice is key to finding the best calculator for the FE exam for you personally. See our FE Exam Study Plans for a schedule.
- Is there a calculator provided on the computer during the exam?
- Yes, a digital version of the TI-30X IIS is available on-screen. However, it is far more cumbersome and slower to use with a mouse than a physical calculator. Relying on the on-screen calculator is a significant disadvantage.
- Do I need to clear my calculator’s memory before the exam?
- While the approved calculators have limited memory, proctors may inspect your calculator. It’s a good practice to know how to perform a full memory reset and do so before entering the test center to avoid any potential issues.
Related Tools and Internal Resources
Continue your FE exam preparation with these helpful resources:
- FE Exam Disciplines Comparison: Learn about the different FE exam subjects to better tailor your study.
- FE Exam Pass Rates Explained: Understand the statistics behind the exam and what it takes to succeed.
- Engineering Ethics Review: A crucial topic for the FE exam, review key concepts here.