Can You Use a Calculator on the Navy’s OAR Test? Score Estimator & Guide


OAR Test Score Estimator & Guide

A common question from aspiring Navy officers is, “can you use a calculator on the navys oar test?” The answer is a definitive no. This page provides clarity on that rule and offers a unique calculator to estimate your potential Officer Aptitude Rating (OAR) score based on your practice performance.

OAR Score Estimator


Enter the number of questions you typically answer correctly (out of 30).


Enter the number of questions you typically answer correctly (out of 20).


Enter the number of questions you typically answer correctly (out of 30).


Chart showing your estimated OAR score relative to average and competitive benchmarks.

What is the Navy’s OAR Test?

The Officer Aptitude Rating (OAR) is a standardized test used by the U.S. Navy, Marine Corps, and Coast Guard to assess the cognitive abilities of individuals applying for officer training programs. It is a sub-test of the broader Aviation Standard Test Battery (ASTB-E). While the full ASTB-E is required for aviation-related roles, many non-aviation officer programs only require the OAR portion. The test is designed to predict a candidate’s future success in the demanding academic and practical environments of Officer Candidate School (OCS).

The OAR comprises three distinct sections:

  • Math Skills Test (MST): Evaluates your knowledge of college-level mathematics, including algebra, geometry, and arithmetic.
  • Reading Comprehension Test (RCT): Measures your ability to read and understand written passages efficiently.
  • Mechanical Comprehension Test (MCT): Assesses your understanding of basic physics and mechanical principles.

A frequently asked question is whether you can use a calculator on the navys oar test. The rules are very strict: no calculators are permitted during any section of the exam. All mathematical calculations must be performed manually, making proficiency in mental math and written computation a critical skill for success.

OAR Score Estimator Formula and Explanation

Since the official OAR scoring algorithm is proprietary and based on a computer-adaptive model, it’s impossible to replicate exactly. However, we can create a weighted estimate to give you a general idea of where you stand. This calculator uses a simplified formula based on the relative importance and number of questions in each section.

Formula: Estimated OAR Score = ((MST % * 0.4) + (RCT % * 0.25) + (MCT % * 0.35)) * 60 + 20

This formula converts your percentage correct in each section into a scaled score within the typical OAR range of 20 to 80. Explore our guide on OAR test scores for more detail.

Variables in the OAR Score Estimation
Variable Meaning Unit Typical Range
MST Score Number of correct answers on the Math Skills Test. Unitless Count 0 – 30
RCT Score Number of correct answers on the Reading Comprehension Test. Unitless Count 0 – 20
MCT Score Number of correct answers on the Mechanical Comprehension Test. Unitless Count 0 – 30

Practical Examples

Example 1: Average Candidate

  • Inputs: MST: 18/30, RCT: 12/20, MCT: 18/30
  • Calculation: Based on the percentage correct in each section, the weighted average is calculated.
  • Estimated Result: An estimated OAR score of approximately 48. This is a solid, average score.

Example 2: Competitive Candidate

  • Inputs: MST: 25/30, RCT: 17/20, MCT: 24/30
  • Calculation: Higher scores in each section, especially the heavily weighted MST, push the estimate up significantly.
  • Estimated Result: An estimated OAR score of approximately 64. A score like this is highly competitive and would stand out on an application. Learn more by checking out our competitive OAR score guide.

How to Use This OAR Test Calculator

Using this calculator is a straightforward process to gauge your readiness. Follow these steps:

  1. Take Practice Tests: Complete several timed practice tests for each of the three OAR sections.
  2. Enter Your Average Scores: Input your average number of correct answers for the Math Skills, Reading Comprehension, and Mechanical Comprehension sections into the corresponding fields.
  3. Analyze the Results: The calculator will instantly display your Estimated OAR Score, along with a breakdown of your performance. The chart will visually place your score against the average (40-60) and competitive (60+) benchmarks.
  4. Identify Weaknesses: Use the intermediate values to see which section is impacting your score the most. This can help you focus your study efforts. You might find our resources on {related_keywords} helpful.

Key Factors That Affect Your OAR Score

Several elements influence your final score. Understanding them is key to effective preparation, especially since you can use a calculator on the navys oar test is a myth.

  • Math Fluency: Your ability to perform calculations quickly and accurately without a calculator is paramount. This includes everything from basic arithmetic to algebra and geometry.
  • Reading Speed: The RCT is timed, so your ability to read, process, and recall information from passages quickly is crucial.
  • Physics Fundamentals: The MCT requires a solid grasp of high-school level physics concepts like gears, levers, pressure, and basic electrical circuits.
  • Time Management: Each section has a strict time limit. Pacing yourself is essential to ensure you can attempt every question.
  • Adaptive Test Nature: The real OAR is a Computer Adaptive Test (CAT). This means the difficulty of subsequent questions changes based on your answers. Answering initial questions correctly can lead to harder, higher-value questions.
  • Educated Guessing Strategy: On the CAT version, penalties can be applied for unanswered questions. Knowing when to guess versus when to skip (if the format allows) is important.

Improving these areas requires dedicated study. See our study guides for more info.

Frequently Asked Questions (FAQ)

1. Can you use a calculator on the navys oar test?

No, you absolutely cannot. Calculators, smartwatches, phones, or any other electronic devices are strictly prohibited. All math must be done by hand using the provided scratch paper.

2. What is the OAR test?

It is the Officer Aptitude Rating test, a screening tool used by the U.S. military to select candidates for officer programs. It measures cognitive skills relevant to a military career.

3. What are the sections of the OAR test?

The test consists of three sections: Math Skills (MST), Reading Comprehension (RCT), and Mechanical Comprehension (MCT).

4. What is a good OAR score?

OAR scores range from 20 to 80. The average score is typically between 40 and 60. A score above 50 is considered competitive, and a score above 60 is excellent and places you in the top 10% of test-takers.

5. What is the minimum OAR score to pass?

While the minimum required score can vary by program and selection board, a common minimum for the Navy is 35. However, simply meeting the minimum is often not enough to be selected in a competitive environment.

6. How is the OAR test scored?

The test is scored on a scale of 20 to 80. It’s a computer-adaptive test, meaning the final score is weighted based on the difficulty of the questions you answered correctly.

7. How many times can I retake the OAR test?

You are allowed a maximum of three attempts in your lifetime. You must also wait at least 31 days between each attempt.

8. Is the OAR test difficult?

It is generally considered more challenging than enlisted aptitude tests like the ASVAB because it is designed to select for officer roles, which require a higher level of academic and problem-solving ability.

Related Tools and Internal Resources

Continue your preparation with our other specialized tools and guides.

Disclaimer: This calculator is an estimation tool for educational purposes only and is not affiliated with or endorsed by the U.S. Navy or Department of Defense. The actual OAR score is determined by the official computer-adaptive test.


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