Best Financial Calculators in the Market

Heads up: some of the links below are affiliate links, so we may earn a small commission if you buy through them. It never costs you anything extra.

A good financial calculator pays for itself the first week of a finance, accounting, or real-estate course, no more wrestling with formulas or spreadsheets for time value of money. Below are the best financial calculators in 2026, including the models required for exams like the CFA.

At a glance

Calculator	Best for	Type	Entry	Approved
TI BA II Plus	Best overall	Financial	None	CFA, finance courses	Check price →
HP 12C	The finance-pro standard	Financial	RPN, programmable	CFA, CFP, FRM	Check price →
HP 10bII+	Best for business class & value	Financial	None	CFP, business courses	Check price →

1. TI BA II Plus – Best overall

2. HP 12C – The finance-pro standard

3. HP 10bII+ – Best for business class & value

Which financial calculator can you use on your exam?

Exam rules change the answer more than features do, so check this before you buy. Here is what the official policies say for the most common tests.

Exam	What is allowed
CFA Program	Only two models: the TI BA II Plus (including the BA II Plus Professional) and the HP 12C (including its Platinum and special editions).
CFP exam	A short approved list that includes the HP 10b, 10bII, 10bII+, 12c, 12c Platinum and 17bII+, the TI BA II Plus and BA II Plus Professional, and the Sharp EL-733, EL-733A and EL-738.
SAT	The policy lists graphing (without CAS), scientific and four-function calculators, and the test app has a built-in Desmos calculator. Financial calculators are not listed, so bring a scientific or graphing model instead.
Real estate licensing exams	Rules are set by each state and its testing company. Read your candidate handbook for the exact list.

A simple rule: if you might take the CFA one day, start with a BA II Plus or an HP 12C now. You will learn the keystrokes once and keep using them through your degree and the exam.

Policies are updated from time to time, so check the official page for your exam a few weeks before test day.

How to choose a financial calculator

• Check your exam. The CFA, for example, only allows the BA II Plus and the HP 12C, so confirm before you buy.
• RPN or algebraic? RPN (the HP 12C) is fast once learned; algebraic entry (BA II Plus, HP 10bII+) feels familiar from day one.
• Statistics. If your course needs stats, the HP 10bII+ includes more than most.
• Keep the manual. Financial calculators have deep worksheet modes that are worth learning.

If you’re studying for the CFA or CFP, get the TI BA II Plus or the HP 12C, since those are the ones allowed. For a business class where you also need statistics, the HP 10bII+ is the friendlier, cheaper pick. Learn its worksheet modes early and it’ll carry you through your degree.

Worked example: a car loan payment, step by step

The fastest way to see what a financial calculator does is to solve one time value of money problem. Say you borrow $20,000 for 5 years at 6% a year, paid monthly. What is the payment?

On the TI BA II Plus

1. Clear old values: press 2nd, then CLR TVM.
2. Set 12 payments per year: press 2nd, P/Y, type 12, ENTER, then 2nd, QUIT.
3. Enter 60 and press N (5 years × 12 months).
4. Enter 6 and press I/Y.
5. Enter 20000 and press PV.
6. Enter 0 and press FV.
7. Press CPT, then PMT. The screen shows about −386.66.

On the HP 12C

1. Clear the financial registers: press f, then FIN.
2. Enter 20000 and press PV.
3. Enter 60 and press n.
4. Enter 0.5 and press i (the 12C uses the rate per period, so 6% ÷ 12 = 0.5%).
5. Enter 0 and press FV, then press PMT. You get about −386.66.

The payment is negative because it is money going out, while the loan amount was money coming in. Over 60 payments you pay about $23,199 in total, so the interest is roughly $3,200.

Check it by hand with the payment formula: PMT = PV × r ÷ (1 − (1 + r)⁻ⁿ), with r = 0.005 and n = 60. That gives 20,000 × 0.005 ÷ (1 − 1.005⁻⁶⁰) ≈ $386.66.

How to use a financial calculator for homework

A financial calculator is most useful when you treat it as a learning check, not just a shortcut to the final answer. Start by copying the original problem carefully, including signs, exponents, decimal points, fractions, parentheses, and units. Then enter the values in the same order the problem gives them. A small typing change can completely change the result, especially in algebra, statistics, geometry, and probability problems. Before you press the button to calculate, make a quick estimate or prediction. The estimate does not need to be exact. Its job is to help you notice impossible answers. If a distance becomes negative, a probability is bigger than 1, an angle looks too large, or a decimal point seems misplaced, go back and check the input before trusting the final result.

Before you enter the problem

• Rewrite the problem in a clean line so every value is easy to see.
• Use parentheses around grouped expressions, especially in fractions and exponents.
• Keep units with the numbers while you work, even if the calculator only asks for the numbers.
• Check whether the problem wants an exact value, a decimal approximation, or a rounded answer.
• Look for restrictions such as positive values only, a chosen interval, or a required domain.

How to read the result

After the calculator gives a result, read more than the final line. If steps, tables, graphs, or intermediate values are shown, use them to understand how the answer was built. That is especially important when you are studying for a quiz or test, because teachers often give more credit for a correct process than for an unsupported number. Try to identify the main idea behind the result. For example, ask yourself which formula was used, which operation changed the expression, which value controlled the graph, or which assumption made the answer possible. When you can explain that idea in your own words, the tool has helped you learn the skill instead of only checking one problem.

Common mistakes to avoid

Mistake	How to catch it
Typing the wrong sign	Compare each negative sign, subtraction symbol, and exponent with the original problem.
Rounding too early	Keep extra decimal places until the final step, then round only as directed.
Forgetting parentheses	Group numerators, denominators, powers, and multi-step expressions before calculating.
Ignoring units	Write the unit next to the final answer so the result has meaning.
Trusting an unreasonable result	Use estimation, a graph, or substitution to check whether the answer makes sense.

Turn the answer into practice

One good way to study is to solve the problem by hand first, then use your financial calculator to check your work. If your answer is wrong, do not erase everything immediately. Find the first line where your work stops matching the calculator’s logic. That line is usually where the real misunderstanding happened.

1. Work the problem on paper and circle your final answer.
2. Use the calculator to check the result.
3. If the answers match, write one sentence explaining the method.
4. If they do not match, compare each step until you find the first difference.
5. Redo a similar problem without the tool to make sure the correction sticks.

When to use a calculator and when to work by hand

Use your financial calculator when you want to check a long calculation, explore a pattern, test a graph, or confirm a result after practicing. Work by hand when the assignment asks for steps, when you are learning a new method, or when the test will not allow a digital tool. The strongest students use both: hand work to build understanding and calculators to check accuracy. If you are preparing for a timed test, practice some problems without the tool and some with it. That balance helps you build speed while still understanding the math. Over time, the goal is to need the calculator less often for routine steps and use it more strategically for checking, exploring, and confirming your reasoning.

Quick accuracy checklist

Before you leave the page, use your calculator’s result to answer three quick questions: What was the input? What rule, formula, or method connects the input to the result? What would change if one number in the problem changed? These questions turn a single calculator answer into a reusable math skill. For homework, write the original problem, the calculator’s result, and one short explanation of the method in your notebook. For test review, cover the result and try to reproduce the setup on your own. If you can set up a similar problem without looking back at the calculator, you are much closer to owning the skill.

Financial vs scientific vs graphing calculator

Students in accounting, business and economics often ask whether they need a financial calculator at all. It depends on the kind of math your course leans on.

Type	Built for	Good fit for
Financial	Time value of money, loans, NPV, IRR, amortization, depreciation, bonds	Corporate finance, accounting, real estate, CFA and CFP prep
Scientific	Exponents, logs, fractions, basic statistics	Intro economics, algebra, statistics, the SAT
Graphing	Graphs, regressions, matrices, programs	Calculus, advanced statistics, econometrics

A scientific calculator can solve a loan problem, but only if you type the full formula correctly every time. A financial calculator stores the five TVM values (N, I/Y, PV, PMT, FV), so you enter what you know and compute the one you need. That saves time and cuts down on typing errors under exam pressure.

If your syllabus mentions present value, cash flows or amortization schedules, buy a financial calculator. If it is mostly supply-and-demand graphs and percentages, a scientific calculator is enough. Many business students end up owning both: a scientific model for math and statistics classes and a BA II Plus or HP 10bII+ for finance.

Frequently Asked Questions

What is the best calculator for accounting?

For accounting classes, a financial calculator like the TI BA II Plus or HP 10bII+ is the best fit, because it handles present value, loan schedules, NPV and depreciation quickly. For everyday bookkeeping at a desk, many accountants also keep a large-key desktop calculator. Check your course syllabus first, since some instructors require a specific model for exams.

Is the TI BA II Plus or the HP 12C better?

Both are allowed on the CFA exam and both handle the core finance functions. The BA II Plus uses familiar algebraic entry and has worksheet menus, so most students learn it faster. The HP 12C uses RPN, which feels odd at first but is very quick once learned, and it is popular in banking and real estate. Pick the one your instructor or exam prep course uses.

Can I use a financial calculator on the SAT?

The College Board’s SAT calculator policy lists graphing calculators without CAS, scientific calculators and four-function calculators, and the test app includes a built-in Desmos calculator. Financial calculators are not on that list, and they would not help much on SAT math anyway. Bring a scientific or graphing calculator, and check the current policy before test day.

Do I need a financial calculator for an economics class?

Usually not for introductory economics, where a scientific calculator covers percentages, growth rates and basic statistics. A financial calculator becomes useful in courses on finance, money and banking, or investments, where you compute present values, bond prices and loan payments often. If your syllabus mentions time value of money, it is worth buying one.