Yes, it is allowed to use a calculator in HiSET—but only during the Mathematics section. You cannot bring your own device. Instead, an on-screen TI-30XS scientific calculator is provided within the test interface for computer-based testing. This rule applies to both in-person and online proctored exams.
The allowed to use a calculator in HiSET policy ensures fairness and consistency. The TI-30XS is the only model permitted, and you must use the digital version during the 90-minute Math test. It supports basic operations, fractions, percentages, exponents, square roots, and parentheses—enough to handle all math problems on the exam.
When Can You Use the Calculator?
You may use the allowed to use a calculator in HiSET tool for most of the Mathematics section. However, the first few questions may appear without access to the calculator to assess basic arithmetic skills. After that, you can open the calculator at any time by clicking the “Calculator” button on screen.
You do not need to use it for every question. Simple calculations are often faster to solve mentally. Overuse can waste time or lead to errors if inputs are incorrect.
Why This Matters
The allowed to use a calculator in HiSET feature is meant to reduce computational mistakes—not replace understanding. You still need to know how to set up word problems, interpret data, and apply formulas correctly.
To prepare:
- Practice with the free TI-30XS online simulator from hiset.ets.org
- Take timed practice tests using the same digital tool
- Learn key functions like order of operations and fraction conversion
Familiarity with the calculator improves speed and confidence on test day.
The allowed to use a calculator in HiSET option gives you a valuable tool—but only if you know how to use it wisely.
It’s not about having the calculator—it’s about using it right.
Master it before test day to save time and avoid stress.