Calculators You Can Use on the PE Exam

Calculators You Can Use on the PE Exam

Understanding which calculators you can use on the PE (Principles and Practice of Engineering) exam is essential for exam day success. The National Council of Examiners for Engineering and Surveying (NCEES) is the official authority setting calculator policies for all PE exam candidates. Their calculator approval policy is the only standard permitted in the testing room. Using a non-approved calculator violates exam procedures, can cause unnecessary stress, and may even lead to having your device confiscated at check-in. Below, we break down the essentials so you arrive prepared and confident.

Official NCEES Policy: Approved Calculators for the PE Exam

Each year, NCEES publishes a specific list of calculators allowed during its engineering licensure exams, including the PE. You are responsible for verifying that your calculator’s make and model number are an exact match to those designated by NCEES. Only the following models are acceptable for use—regardless of discipline or exam administration year (please always double-check the most current policy directly on the NCEES website before your test date):

  • Casio: All models within the fx-115 and fx-991 product lines (e.g., Casio fx-115ES, Casio fx-991ES PLUS)
  • Hewlett Packard (HP): HP 33s and HP 35s models only
  • Texas Instruments (TI): All TI-30X and TI-36X models (including the TI-36X Pro available through School of PE)

Do not assume that similar models are allowed—if it is not explicitly listed by NCEES, it is not permitted. For further details and current policy, consult ncees.org directly.

Why Are Calculator Choices Restricted by NCEES?

Calculator policies are in place to ensure all test takers participate under the same conditions and to prevent the possibility of unfair advantage. According to NCEES, prohibited features include:

  • Infrared or wireless communication (Bluetooth, Wi-Fi, etc.)
  • External memory or storage that can contain notes or full reference texts
  • Computer algebra systems (CAS) or advanced programmable functionality
  • Graphing capabilities beyond those provided in the basic scientific models listed above

Only basic scientific calculators with approved functions are eligible. This ensures exam integrity and provides an even playing field for all examinees.

Bringing a Non-Approved Calculator: What Happens?

On exam day, your calculator will be inspected by proctors. If it is not on the NCEES approved list, you will not be permitted to use it for the test. According to NCEES protocol, your calculator may be:

  • Confiscated for the exam duration
  • Set aside—meaning you’ll have to take the exam without your device

NCEES emphasizes that you should always bring an approved primary calculator and, ideally, a backup of the same model to the testing center.

Key Features of NCEES-Approved Calculators

  • Standard scientific calculation functionality (arithmetic, exponents, roots)
  • Trigonometric and logarithmic operations
  • No internet connectivity or programmable storage of detailed notes
  • Approved memory clearing/resetting function

Per NCEES, these calculators are sufficient for every problem type on the current PE exam, regardless of discipline.

Choosing Your Calculator: NCEES Guidance

NCEES does not endorse a particular brand or model beyond listing those that are approved. It is up to you to select an approved model that fits your familiarity and comfort level. Prioritize a calculator you have practiced with during your studies. Features such as ease of switching between degree and radian mode or a specific layout you prefer may help maximize your efficiency under exam conditions.

Steps to Ensure Your Calculator Is NCEES-Compliant

  1. Go to the official NCEES calculator policy page before your exam.
    Check the current year’s list—models allowed are named by both brand and series.
  2. Review your calculator’s exact model number (often found on the front or back of the device).
  3. Visit your exam site prepared with only approved calculators. Do not risk using even a similar model.
  4. Bring a backup approved calculator, if possible, in case of technical failure.
  5. Arrive early on exam day for inspection—this helps avoid unnecessary delays or stress.

Your adherence to this process means you’ll avoid any NCEES disqualification due to calculator issues.

Exam Day: Calculator Inspection Protocol

Expect your PE calculator to be checked by proctors before the start of the exam. According to NCEES protocol, you may be asked to:

  • Show the device power-on screen
  • Demonstrate that the device can be reset or memory cleared
  • Present the model designation

Devices that do not meet the approved list will be collected and held by the proctors for the test duration.

Common Mistakes to Avoid with PE Calculators

  • Bringing a non-approved calculator or one that is only similar to an approved model
  • Not checking the model number against the official NCEES list before exam day
  • Waiting until the last minute to learn your calculator’s memory-clearing and reset procedures
  • Failing to check battery levels or device readiness before arriving at the testing center

Frequently Asked Questions: PE Exam Calculators According to NCEES

Which calculators can I bring?

Only the following:
- Casio: All fx-115 and fx-991 models
- Hewlett Packard: Only HP 33s and HP 35s
- Texas Instruments: All TI-30X and TI-36X models
Double check on ncees.org for the current official list.

Can I bring a backup calculator?

Yes, as long as both calculators are on the NCEES approved list.

Can I store equations or data?

NCEES prohibits the storage of notes, complete solutions, or reference texts in any device memory. You should only use the built-in calculation functions as intended by the manufacturer.

What if I am not sure if my calculator counts as approved?

If your exact model (both brand and series) does not match the approved list, it is not allowed. When in doubt, consult the official NCEES calculator FAQ or contact NCEES directly prior to your exam date.

References

Conclusion

Strictly following NCEES guidelines regarding approved calculators is one of the simplest ways to avoid exam-day complications and stress during your PE exam. Only bring calculators explicitly listed in the NCEES calculator policy, and ensure you are familiar with your device’s operation and battery status before test day. For further support in your PE exam journey, feel free to explore more at School of PE.

Back to blog