Yes, you can use a calculator on the GED test—but only in specific sections and only the approved model. The calculator on the GED test is provided digitally as an on-screen version of the TI-30XS Multiview scientific calculator. You cannot bring your own device to the testing center or use a physical calculator during the at-home exam.
The calculator on the GED test is allowed exclusively during Part 2 of the Mathematical Reasoning section, which contains 40–44 questions. The first part of the Math test—just 5 questions—is calculator-prohibited and focuses on basic arithmetic and quantitative reasoning without computational aids.
You may also use the calculator on the GED test for certain questions in the Science and Social Studies sections, particularly those involving data interpretation, percentages, or unit conversions. However, it’s rarely needed in those subjects, and the test interface will enable it only when appropriate.
How to Prepare with the Approved Calculator
Since the calculator is built into the exam software, you should practice with the exact same tool during preparation. The GED Testing Service provides a free, functional version on GED.com and in the GED Ready practice tests. Familiarity with its layout—especially for square roots, fractions, and scientific notation—is essential for efficiency.
Many test takers waste time during the exam because they haven’t practiced with the TI-30XS. Others overuse it for simple calculations, slowing themselves down. Use it strategically—for complex operations only.
Remember: the calculator is a tool, not a solution. It won’t compensate for gaps in math understanding.
Mastering its use can save time and reduce errors—but only if you’ve practiced in advance.
Knowing when and how to use the calculator on the GED test is part of test-day readiness.