CFA Calculator Allowance Checker
Type your calculator model to quickly check if it is typically permitted in CFA exams.
Tip: Bring a spare battery and a second approved calculator on exam day if possible.
Quick CFA Study Growth Calculator
Use this mini finance calculator to practice compounding concepts often tested in the curriculum.
Which calculator is allowed in CFA exams?
If you are preparing for the CFA Program, this is one of the most important logistics questions: What calculator is allowed in CFA exams? The answer is simple but strict. CFA exam rules allow only specific models, and showing up with a non-approved calculator can create serious exam-day stress.
In general, the approved families are:
- Texas Instruments BA II Plus (including BA II Plus Professional)
- Hewlett Packard 12C (including HP 12C Platinum)
Why CFA calculator rules are strict
The CFA exam aims to be fair and consistent globally. If candidates had programmable calculators, internet-connected devices, or advanced symbolic tools, exam conditions would be uneven. Restricting calculator models keeps the focus on financial reasoning, not device advantages.
These rules also help proctors quickly inspect devices. On a high-stakes testing day, simplicity and consistency matter.
BA II Plus vs HP 12C: which one should you choose?
1) Learning curve
Most candidates find the BA II Plus easier at first because it uses standard algebraic input. The HP 12C uses Reverse Polish Notation (RPN) by default, which some people love for speed, but beginners may need extra practice to avoid entry errors.
2) Curriculum alignment
Many prep providers teach examples with BA II Plus keystrokes, so if you want fewer translation steps from lesson to practice, BA II Plus is often the smoother path.
3) Speed and comfort
Either model can work very well once you build muscle memory. The best calculator is the one you can operate confidently under time pressure.
Common calculator mistakes candidates make
- Not resetting settings: Decimal places, payment timing (BEGIN/END), and compounding setup can change answers.
- Using a new calculator too late: Switching models close to exam day often causes avoidable mistakes.
- Forgetting spare power: Low battery anxiety can derail concentration.
- Ignoring keystroke drills: Knowing formulas is not enough; speed and accuracy come from repetition.
Exam-day checklist for your CFA calculator
- Confirm your model is approved.
- Install a fresh battery a few days before the exam.
- Pack a backup approved calculator if possible.
- Clear memory and verify standard settings.
- Practice TVM, NPV, IRR, bond, and statistics keystrokes one final time.
Calculator skills that save time in the CFA exam
Calculator mastery is a hidden performance edge. Candidates who can execute keystrokes fast often gain valuable minutes for harder conceptual questions. Prioritize:
- Time Value of Money (N, I/Y, PV, PMT, FV)
- Cash flow registers for NPV and IRR
- Amortization and annuity settings
- Mean, standard deviation, and basic probability operations
- Exponent and root shortcuts for return calculations
Final thoughts
The short answer to “calculator allowed in CFA” is: use an approved model from the permitted list and learn it deeply. Don’t treat the calculator as an afterthought. Treat it as part of your exam strategy.
Pick one model early, practice with it daily, and simulate exam conditions. On test day, confidence with your calculator can reduce friction, improve pacing, and protect your score.