OAR Test Calculator Policy Guide

An interactive tool to answer the question: can you use a calculator on the OAR test?

OAR Calculator Policy Checker

What is the OAR Test?

The Officer Aptitude Rating (OAR) test is a key component of the selection process for candidates seeking to become officers in the U.S. Navy. It is not a standalone exam but rather a subset of the Aviation Standard Test Battery (ASTB-E). While the full ASTB-E is required for aviation-related roles, applicants for other officer programs, such as Officer Candidate School (OCS), may only need to take the OAR portion. The fundamental question many applicants have is whether they can use a calculator on the OAR test to help them.

The test comprises three distinct sections designed to measure critical cognitive abilities: the Math Skills Test (MST), the Reading Comprehension Test (RCT), and the Mechanical Comprehension Test (MCT). Your performance on the OAR helps determine your eligibility for officer training and can influence which career paths are available to you. Understanding the rules, especially regarding tools like calculators, is crucial for proper preparation.

OAR Calculator Policy Formula and Explanation

The “formula” for determining if a calculator is allowed on the OAR is not a mathematical equation but a strict policy rule. For any given section of the test, the policy is binary: either a calculator is permitted or it is not. There are no exceptions or variations.

The official policy across all sections of the OAR test is simple and unambiguous.

Policy(Section) = NOT ALLOWED

This means for the Math Skills, Reading Comprehension, and Mechanical Comprehension tests, the answer to “can you use a calculator on the OAR” is a firm no. Test takers are provided with scratch paper and pencils to perform any necessary calculations by hand.

Policy Breakdown Table

Summary of Calculator Policy for Each OAR Subtest

Variable (Test Section)	Meaning	Calculator Allowed?	Typical Time Limit
Math Skills Test (MST)	Assesses knowledge of algebra, geometry, and arithmetic.	No	40 minutes
Reading Comprehension Test (RCT)	Measures ability to extract meaning from text.	No	30 minutes
Mechanical Comprehension Test (MCT)	Tests understanding of basic physics and mechanical principles.	No	15-30 minutes

To succeed, especially on the OAR test math skills section, you must rely entirely on your mental math and manual calculation abilities.

Calculator Policy Visualization

Practical Examples

Example 1: Candidate Preparing for the Math Skills Test (MST)

• Input: The candidate selects “Math Skills Test (MST)” in the calculator.
• Result: The tool outputs a clear “NOT ALLOWED” message.
• Interpretation: The candidate understands they must practice solving algebra and geometry problems without a calculator. They should focus on improving their speed and accuracy with manual calculations, a key part of any OAR test prep course.

Example 2: Candidate Confused About the Mechanical Comprehension Test (MCT)

• Input: The candidate selects “Mechanical Comprehension Test (MCT)”.
• Result: The tool again shows “NOT ALLOWED”.
• Interpretation: Even though this section involves physics principles, no calculator is provided. The candidate knows they need to understand the concepts well enough to solve problems without computational aid.

How to Use This OAR Calculator Policy Checker

1. Select the Section: Use the dropdown menu to choose the specific OAR subtest you have a question about (MST, RCT, or MCT).
2. Check the Policy: Click the “Check Policy” button.
3. Interpret the Result: The tool will instantly display the official rule. The result is unambiguous—it will clearly state whether a calculator is permitted. For the OAR test, this answer is always no.
4. Copy the Finding: You can use the “Copy Results” button to save the official policy for your records.

Key Factors That Affect OAR Performance

Since you cannot use a calculator on the OAR test, several other factors become critically important for achieving a competitive score.

• Mental Math Speed: The Math Skills Test is timed, so the ability to perform calculations quickly and accurately in your head or on paper is vital.
• Conceptual Understanding: For the Mechanical Comprehension section, a deep understanding of physics principles (levers, gears, fluids) is more important than complex calculation.
• Reading Pace and Retention: The Reading Comprehension section tests your ability to quickly absorb and analyze information, a skill unrelated to calculator use.
• Time Management: With no calculator to speed up math, you must manage your time effectively across all sections. For more on this, see our Navy officer requirements page.
• Formula Memorization: You should memorize key mathematical and physics formulas, as they will not all be provided.
• Practice Under Realistic Conditions: The best way to prepare is to take timed practice tests without a calculator to simulate the actual exam environment.

Frequently Asked Questions (FAQ)

1. Is a calculator allowed on any part of the OAR test?

No, calculators are not permitted on any of the three subtests: Math Skills, Reading Comprehension, or Mechanical Comprehension.

2. Will I be given a calculator at the testing center?

No, the testing center will not provide a calculator. You will be given scratch paper and a pencil for manual work.

3. Why are calculators not allowed on the OAR?

The test is designed to assess your foundational cognitive skills and ability to reason and calculate without assistance, which are considered essential for officer duties. Research supports that math without a calculator is a needed skill in military training.

4. What kind of math is on the OAR Math Skills Test?

The MST covers college-level math, including arithmetic, algebra, geometry, and word problems. Familiarity with these topics is essential for your ASTB test preparation.

5. Does the ‘no calculator’ rule apply to the full ASTB-E as well?

Yes, the OAR is a component of the ASTB-E, and this policy applies to the entire test battery. The additional sections of the ASTB-E also do not permit calculator use.

6. Are there any formulas provided during the test?

Some sources indicate that a few formulas may be provided for specific questions, but you should not rely on this. It is best to memorize essential formulas.

7. How should I practice for the math section without a calculator?

Use practice tests and study guides specifically designed for the OAR. Focus on solving problems by hand to build speed and confidence. Check out our free OAR practice test to get started.

8. What happens if I bring a calculator to the test?

You will not be allowed to bring it into the testing room. All personal items, including electronics, must be stored away. Bringing prohibited items could lead to dismissal.