Cfa Permitted Calculators






CFA Permitted Calculators: The Ultimate 2026 Guide & Policy Checker


CFA Permitted Calculators Guide

CFA Permitted Calculator Checker

Enter your calculator model to instantly verify if it’s approved for the CFA exam. The official CFA calculator policy is very strict, so it’s crucial to check your model. Using unapproved cfa permitted calculators will result in your exam being voided.


Enter the full model name as written on your calculator.
Please enter a calculator model.


Deep Dive into CFA Permitted Calculators

What is the CFA Calculator Policy?

The CFA calculator policy refers to the strict set of rules established by the CFA Institute that dictates which specific calculator models are allowed during the exams. This policy is designed to ensure fairness and integrity by standardizing the tools available to all candidates. Only two families of calculators are authorized: the Texas Instruments BA II Plus and the Hewlett Packard 12C. Using any non-approved model, including other financial or scientific calculators, is a policy violation and can lead to severe penalties, such as having your exam results voided. Therefore, understanding and adhering to the guidelines for cfa permitted calculators is a critical part of your exam preparation.

The Official CFA Institute Calculator Policy Explained

There isn’t a mathematical “formula” for determining cfa permitted calculators, but rather a simple, definitive list. The policy is binary: a model is either on the list or it’s not. The CFA Institute explicitly authorizes only the following models:

  • Texas Instruments BA II Plus (including the BA II Plus Professional model)
  • Hewlett Packard 12C (including the HP 12C Platinum, 12C Platinum 25th anniversary edition, 12C 30th anniversary edition, and HP 12C Prestige)

No other calculators are allowed. This includes calculator apps on phones or watches, graphing calculators, or any device with communication capabilities. Proctors will inspect all calculators before the exam begins.

Key Policy Rules for CFA Permitted Calculators
Rule Explanation Importance
Approved Models Only Only TI BA II Plus and HP 12C families are allowed. Critical – Violation leads to voided exam.
Bring Your Own Test centers do not provide calculators. Essential – You cannot take the exam without one.
Backup Recommended You may bring two approved calculators. High – Protects against battery failure or malfunction.
No Sharing Sharing calculators or batteries is forbidden. Critical – Violation of exam conduct rules.
Clear Memory You may be asked to clear your calculator’s memory. High – Ensures no stored formulas or notes are present.

Practical Examples: Use Cases & Scenarios

Example 1: The Prepared Candidate

A candidate arrives at the test center with a Texas Instruments BA II Plus Professional and a spare set of batteries. They also have a regular HP 12C as a backup in their bag. Before the exam, the proctor inspects the calculator and may ask to see its memory cleared. The candidate complies, begins the exam, and efficiently uses the calculator for Time Value of Money (TVM) and Net Present Value (NPV) questions. This is the ideal scenario, demonstrating full compliance with the cfa permitted calculators policy.

Example 2: The Unprepared Candidate

Another candidate brings a TI-84, a popular graphing calculator from their university statistics course. During the pre-exam inspection, the proctor identifies it as an unauthorized model. The candidate is not allowed to use it. Since they have no backup and calculators cannot be borrowed, they must attempt the quantitative sections of the CFA exam without a calculator, drastically reducing their chances of passing. This highlights the importance of the CFA exam calculator policy.

How to Use This CFA Permitted Calculator Checker

  1. Enter Your Model: Type the model name of your calculator (e.g., “HP 12C Platinum”) into the input field above.
  2. Check Results: The tool will instantly display whether your calculator is “Permitted” or “Not Permitted”.
  3. Review Details: The results area will also show which approved family your calculator belongs to and confirm if it’s ready for the exam.
  4. Reset: Click the “Reset” button to clear the fields and check another model. This is useful if you are considering which of the cfa permitted calculators to purchase.

Comparison of Key Features: TI BA II Plus vs. HP 12C

Visual comparison of the two approved CFA calculators on learning curve and expert speed.

Key Factors in Choosing Between CFA Permitted Calculators

The choice between the two approved cfa permitted calculators, the TI BA II Plus and the HP 12C, is a significant one for candidates. Here are six factors to consider:

  • 1. Input Method (Algebraic vs. RPN): This is the biggest difference. The TI BA II Plus uses the standard Algebraic Operating System (AOS), where you enter equations as you would write them (e.g., 2 + 2 = 4). The HP 12C uses Reverse Polish Notation (RPN), which is more efficient once mastered (e.g., 2 Enter 2 +) but has a steeper learning curve.
  • 2. Learning Curve: Because it uses a familiar algebraic input method, the TI BA II Plus is widely considered much easier and faster for new users to learn. Most test prep providers use it in their examples.
  • 3. Speed and Efficiency: While the TI is easier to learn, many finance veterans and RPN experts argue the HP 12C is faster for complex, multi-step calculations due to fewer required keystrokes.
  • 4. Cost: Generally, the Texas Instruments BA II Plus and its Professional version are more affordable than the Hewlett Packard 12C models.
  • 5. Build Quality and Feel: The HP 12C is often praised for its robust, professional build quality and responsive keys. Some users find the standard TI BA II Plus to feel “plasticky” or cheap in comparison. The TI BA II Plus Professional version offers a more solid build.
  • 6. Functionality and Features: Both calculators can perform all the necessary functions for the exam, including TVM, NPV, IRR, and bond calculations. The TI BA II Plus Professional has a few extra functions like Net Future Value (NFV) and a modified IRR, which can be useful.

Frequently Asked Questions (FAQ) about CFA Permitted Calculators

1. Can I bring two calculators to the CFA exam?

Yes, you are allowed to bring a second, approved calculator as a backup. In fact, it is highly recommended in case your primary device malfunctions or the battery dies.

2. What is the difference between the TI BA II Plus and the Professional version?

The Professional version has a sturdier build quality, a slightly better keypad, and a few additional worksheet functions like Net Future Value (NFV) and Modified IRR. For most candidates, the standard version is sufficient, but many prefer the feel of the Professional model.

3. What is RPN and do I need to learn it?

RPN (Reverse Polish Notation) is an input method used by the HP 12C where you enter operands first, followed by the operator. You do not need to learn it; you can opt for the much more common algebraic input by choosing the TI BA II Plus, which is what the majority of candidates do.

4. Do I need to clear my calculator’s memory before the exam?

Yes, the CFA Institute policy states that your calculator’s memory must be cleared before the exam. Proctors may inspect your calculator and ask you to demonstrate that the memory has been cleared.

5. Are calculator instruction manuals or keystroke cards allowed?

No, instruction manuals are not permitted in the testing room. However, loose keystroke cards that come with the calculator are allowed, as are calculator covers.

6. What happens if I bring an unapproved calculator?

If you are found with an unapproved calculator, it will be confiscated, and your exam results for that session will be voided. This rule is strictly enforced. This is why checking the CFA exam calculator policy is so important.

7. Which model is more popular among CFA candidates?

The Texas Instruments BA II Plus (both standard and Professional versions) is by far the more popular choice among candidates, primarily due to its ease of use and lower learning curve.

8. Can I use the HP 12C Platinum’s algebraic mode?

Yes. The HP 12C Platinum version includes the ability to switch between RPN and algebraic entry modes, making it a viable option for those who want the build of an HP without learning RPN.

For more on your CFA journey, explore these resources:

© 2026 Financial Tools & Analysis. All Rights Reserved. This content is for informational purposes only and does not constitute financial advice. The cfa permitted calculators policy is subject to change; always check the official CFA Institute website.



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