Series 65 Calculator Policy: What You Can and Cannot Use

Quick Answer

You cannot bring your own calculator to the Series 65 exam. Prometric testing centers provide a basic four-function calculator (add, subtract, multiply, divide) plus a whiteboard and markers for scratch work.

Calculator Policy Overview

The Series 65 exam has a strict calculator policy designed to ensure fairness and exam security. Here is what you need to know:

Provided by Prometric What you'll receive
  • Four-function calculator
  • Small whiteboard
  • Dry-erase markers
  • Noise-canceling headphones
Not Allowed Leave these at home
  • Personal calculators
  • Financial calculators
  • Phones or smartwatches
  • Any electronic devices
  • Paper notes or cheat sheets

This policy applies to all NASAA-administered exams (Series 63, 65, and 66). The rationale is straightforward: limiting calculator functionality ensures that exam performance reflects your knowledge, not your calculator skills or pre-programmed shortcuts.

What’s Provided at the Testing Center

When you arrive at the Prometric testing center and are seated, you will receive the following tools:

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Four-Function Calculator

A basic calculator with only add, subtract, multiply, and divide functions. No memory, no square root, no financial functions. This is intentional; the exam is not designed to require complex calculations.

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Whiteboard and Markers

A small dry-erase board and markers replace traditional scratch paper. Use this to work out calculations, write down formulas at the start of your exam, and make notes as you work through questions.

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Noise-Canceling Headphones

Optional headphones to block out ambient noise from other test-takers. Useful for maintaining focus, especially if you are sensitive to sound.

Pro Tip: Write Formulas First

As soon as your exam timer starts, spend 2-3 minutes writing key formulas on your whiteboard before you look at any questions. This locks in what you memorized while your mind is fresh and stress-free.

What Calculations to Expect

The Series 65 exam includes approximately 10-15 math-based questions out of 130 total. The good news: most calculations are straightforward with a four-function calculator.

Common Calculation Types

Current Yield

Annual Coupon ÷ Market Price

Example: $60 ÷ $950 = 6.32%

Difficulty: Easy

Tax-Equivalent Yield

Tax-Free Yield ÷ (1 - Tax Rate)

Example: 4% ÷ (1 - 0.32) = 5.88%

Difficulty: Easy

NAV per Share

(Assets - Liabilities) ÷ Shares

Example: ($100M - $5M) ÷ 5M = $19

Difficulty: Easy

CAPM Expected Return

Rf + β × (Rm - Rf)

Example: 3% + 1.2 × (10% - 3%) = 11.4%

Difficulty: Medium

Sharpe Ratio

(Return - Rf) ÷ Std Dev

Example: (12% - 3%) ÷ 15% = 0.60

Difficulty: Medium

Rule of 72

72 ÷ Annual Return

Example: 72 ÷ 8% = 9 years to double

Difficulty: Easy

Notice that all these calculations use basic arithmetic: addition, subtraction, multiplication, and division. The exam designers know you only have a four-function calculator and construct questions accordingly.

Most Questions Are Conceptual

More often than actual calculations, the exam tests whether you understand when to use each formula and how to interpret results. For example: “A bond trading at a discount will have a current yield that is ______ than its coupon rate.” (Answer: higher)

For a comprehensive breakdown of all formulas, see our Series 65 Formula Guide.

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Master the Math with Adaptive Practice

CertFuel tracks your performance on calculation-based questions separately from conceptual questions. Our Smart Study algorithm identifies whether you struggle with the formulas themselves or interpreting results, then prioritizes exactly what you need to practice.

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Mental Math Tips for Efficiency

While you have a calculator, mental math shortcuts can save time and help you verify answers quickly. Here are techniques successful candidates use:

1

Estimate Before You Calculate

Before punching numbers into the calculator, estimate the answer. If a bond with a 5% coupon is trading at a 10% discount, current yield must be slightly higher than 5%. If your calculation gives you 12%, something is wrong.

2

Use the Rule of 72 as a Sanity Check

72 ÷ 6 = 12 years to double. 72 ÷ 12 = 6 years to double. This quick mental math helps verify time value of money questions and compound growth scenarios.

3

Know Your Percentages

Memorize common conversions: 25% = ¼, 33% ≈ ⅓, 20% = ⅕, 10% = 1/10. When calculating tax-equivalent yield with a 25% tax rate, you are dividing by 0.75 (or multiplying by 4/3).

4

Eliminate Obvious Wrong Answers

If calculating NAV and the answer choices are $15, $19, $25, and $85, and you know assets are $100M with minimal liabilities, $85 is immediately suspect. Mental estimation helps you eliminate outliers.

5

Break Complex Calculations into Steps

For CAPM: first calculate the market risk premium (Rm - Rf), then multiply by beta, then add back the risk-free rate. Write intermediate results on your whiteboard to avoid errors.

Formula Memorization Strategy

Since you cannot bring notes into the exam, you must memorize key formulas. Here is a strategic approach:

Priority 1: Must Know (Frequently Tested)

  • Current Yield = Annual Coupon ÷ Market Price

  • Tax-Equivalent Yield = Tax-Free Yield ÷ (1 - Tax Rate)

  • NAV = (Assets - Liabilities) ÷ Shares Outstanding

  • CAPM = Rf + β × (Rm - Rf)

  • Rule of 72 = 72 ÷ Return = Years to Double

Priority 2: Should Know (Sometimes Tested)

Priority 3: Understand Concept (Rarely Calculated)

  • YTM approximation (know the relationship, not exact formula)

  • Standard Deviation (understand what it measures)

  • Duration (conceptual understanding)

Spaced Repetition Works

Use flashcards with spaced repetition to memorize formulas. Review them daily in the weeks before your exam. The FSRS algorithm shows cards at optimal intervals for long-term retention. Our flashcard strategies guide explains how FSRS-powered spaced repetition works and why it’s ideal for memorizing the formulas you’ll dump on your whiteboard at exam start.

The Whiteboard Dump Strategy

On exam day, as soon as your 180-minute timer starts:

  1. Take a deep breath. Do not look at the first question yet.
  2. Write your Priority 1 formulas on the whiteboard.
  3. If time permits, add Priority 2 formulas.
  4. Now begin the exam with your “cheat sheet” ready.

This takes 2-3 minutes but can save you from blanking on formulas later when stress is higher. Successfully executing this strategy requires actually memorizing those formulas beforehand. Our flashcard strategies guide shows how to use FSRS-optimized flashcards to lock in formula recall so the whiteboard dump happens naturally under exam pressure.

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Never Blank on Formulas Again

CertFuel's Smart Flashcards use FSRS v5 spaced repetition to show you formulas at the scientifically optimal moment for long-term retention. Our adaptive system prioritizes formulas you struggle with while maintaining the ones you've mastered.

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Exam Day Calculator Tips

Here is how to make the most of your provided tools on exam day:

Test Your Calculator First

Before starting questions, do a quick test: 100 ÷ 4 = 25. This confirms the calculator works and familiarizes you with its feel. Report any issues immediately.

Write Intermediate Steps

For multi-step calculations, write intermediate results on your whiteboard. This prevents errors and makes it easier to check your work if an answer seems wrong.

Double-Check Decimal Placement

The most common calculator error is misplacing decimals. When entering percentages, be consistent: either enter 0.05 or 5% but know which your formula expects.

Flag and Return

If a calculation is taking too long, flag the question and move on. Return to it after completing other questions. Do not let one math problem consume 10 minutes.

Clear Between Calculations

Press clear (C) between each calculation to avoid accidentally including numbers from the previous problem. This is a simple habit that prevents careless errors.

Verify Against Estimates

After calculating, verify your answer makes logical sense. A current yield of 0.5% on a corporate bond, or a beta of 15 for a stock, should trigger rechecking.

Practice with Limitations

During your final weeks of study:

  • Put away your financial calculator and phone calculator
  • Use only a basic four-function calculator for practice problems
  • Practice writing formulas from memory on scratch paper
  • Time yourself on practice exams to build endurance

For structured daily and weekly breakdowns of how to organize those final weeks, see our study schedule guide. To practice full exam simulations with timed conditions and anxiety management strategies, our exam day guide covers the complete experience. Including the whiteboard dump strategy and calculator handling under pressure.

The goal is eliminating surprises on exam day. If you have practiced under exam-like conditions, the calculator limitation will feel natural rather than restrictive.

Key Takeaways
  • No personal calculators are allowed at the Series 65 exam
  • Prometric provides a four-function calculator, whiteboard, and markers
  • 10-15 questions involve calculations, mostly using basic arithmetic
  • Memorize key formulas and write them on your whiteboard at the start
  • Practice with a basic calculator during your final weeks of study

The calculator limitation is not meant to trip you up. The exam tests your understanding of financial concepts, not your ability to operate sophisticated calculators. With proper preparation, the four-function calculator is all you need.

Understanding calculator policy is just one piece of comprehensive exam readiness. For a complete roadmap covering study timelines, formula memorization, final week preparation, and test-day logistics, see our series 65 exam day guide.

Frequently Asked Questions

No. Personal calculators are not allowed at the Series 65 exam. Prometric testing centers provide a basic four-function calculator (add, subtract, multiply, divide) for all candidates. This ensures fairness and security across all test-takers.

Prometric provides a basic four-function calculator that performs addition, subtraction, multiplication, and division. It is not a financial calculator, so it does not have time value of money functions, memory storage, or programmable features.

Yes. You receive a small whiteboard and dry-erase markers instead of traditional scratch paper. This allows you to work out calculations, jot down formulas at the start of the exam, and make notes during questions. The whiteboard must be returned after the exam.

Approximately 10-15 of the 130 questions involve calculations. Most math questions test conceptual understanding rather than complex calculations. Common topics include current yield, tax-equivalent yield, CAPM components, and NAV calculations. For a complete reference, see our [Series 65 formula guide](/series-65/exam-topics/formulas/).

Yes. You should memorize key formulas including current yield, tax-equivalent yield, CAPM, Sharpe ratio, and NAV. Since you cannot bring notes, write down important formulas on your whiteboard at the start of the exam before you begin answering questions.

Most calculations use simple numbers that work cleanly with a four-function calculator. The exam tests your understanding of when to apply formulas and how to interpret results, not your ability to perform complex arithmetic. If you know the formulas, the math is straightforward.

For the Series 65 exam, Prometric provides a four-function calculator, a small whiteboard, dry-erase markers, and noise-canceling headphones. You may not bring any personal items into the testing room.

Yes. Many successful candidates use the first few minutes of their exam time to write key formulas on the whiteboard. This is a recommended strategy. Write down formulas you have memorized before stress affects your recall.

If your calculator or any other equipment malfunctions, raise your hand immediately to alert the proctor. They will provide a replacement. Do not waste exam time trying to fix equipment issues yourself.

Yes. If you typically use a financial calculator or smartphone app for calculations, practice with a basic four-function calculator during your study sessions. This eliminates surprises on exam day and helps you get comfortable with the limitations.