Calculators allowed on the FE exam

Only three families are allowed: Casio fx-115 and fx-991 models, the HP 33s and HP 35s, and TI-30X and TI-36X models.

Casio	Every fx-115 and fx-991 model
Hewlett Packard	The HP 33s and HP 35s only
Texas Instruments	Every TI-30X and TI-36X model
On screen	A TI-30XS is also available in the exam software

How the rule works

The model name printed on the calculator must contain the approved name: "fx-115" or "fx-991" for Casio, "TI-30X" or "TI-36X" for Texas Instruments. NCEES reviews the list every year, so check it before you buy. You may bring one calculator into the room, without its cover.

Practice with the one you will use

Use your exam calculator for every practice question. Its equation solver, matrix and statistics modes save minutes on the day, but only if your fingers already know them.

Try 2 questions

Question 1

Solve for

x

\;2x - 2y

= 6\;

and

\;4x + 5y

= 3

Question 2

Five measurements of a valve's closing time, in seconds, are 11, 25, 15, 33, 11. What is the sample standard deviation?

Next step

Take the free 12-question test Which FE exam should I take?

NCEES's calculator policy, on the FE exam page

Questions people ask

What calculators are allowed on the FE exam?

For 2026 exams: Casio fx-115 and fx-991 models, the Hewlett Packard HP 33s and HP 35s, and Texas Instruments TI-30X and TI-36X models. No other calculators are allowed.

Can you use a graphing calculator on the FE exam?

No. Graphing calculators such as the TI-84 are not on NCEES's approved list.

Is there a calculator in the FE exam software?

Yes. NCEES's Examinee Guide says a TI-30XS calculator can be used on screen during the exam.