PSAT Tools & Resources
PSAT Score Calculator
Estimate your total PSAT/NMSQT score based on the number of questions you answered correctly. This tool helps you convert your raw scores from practice tests into an estimated scaled score, understand where you stand, and learn about the calculators used on the PSAT.
Enter your total number of correct answers from the two Reading & Writing modules (Max: 54).
Enter your total number of correct answers from the two Math modules (Max: 44).
What is a PSAT Score Calculator?
A PSAT Score Calculator is a tool designed to estimate your final scaled scores on the PSAT/NMSQT based on your performance on a practice test. You input your “raw scores”—the number of questions you answered correctly in each section—and the calculator uses a conversion process to project your section scores (on a 160-760 scale) and your total score (on a 320-1520 scale). This is essential for students preparing for the exam, as it provides a realistic snapshot of their potential performance and highlights areas needing improvement. It also helps demystify the scoring process, which isn’t just about how many you get right, but how those correct answers translate to a scaled score through a process called “equating.”
PSAT Score Formula and Explanation
The College Board converts your raw scores into scaled scores through a process called equating, which adjusts for slight variations in difficulty between different test versions. While the exact conversion table is unique to each test, we can use a reliable formula to estimate the scores.
The two main scores are for the Reading and Writing and Math sections. The NMSC (National Merit Scholarship Corporation) uses these section scores to calculate a Selection Index (SI) score, which is critical for the National Merit Scholarship Program.
The formula for the Selection Index is: SI = (2 * Reading & Writing Score + Math Score) / 10
| Variable | Meaning | Unit / Range | Typical Range |
|---|---|---|---|
| Raw Score (R&W) | Number of correct Reading & Writing questions | 0-54 | 25-45 |
| Raw Score (Math) | Number of correct Math questions | 0-44 | 20-40 |
| Scaled Score | Section score adjusted for difficulty | 160-760 | 450-650 |
| Total Score | Sum of the two section scaled scores | 320-1520 | 900-1300 |
| Selection Index (SI) | Value used for National Merit qualification | 48-228 | 180-215 |
Practical Examples
Example 1: High-Scoring Student
- Inputs: 48/54 correct in Reading & Writing, 40/44 correct in Math.
- Results: This would likely result in a Reading & Writing scaled score around 700 and a Math scaled score around 720. The total score would be approximately 1420.
- Selection Index: (2 * 700 + 720) / 10 = 212. This score is competitive for National Merit Commended status.
Example 2: Average Student
- Inputs: 35/54 correct in Reading & Writing, 28/44 correct in Math.
- Results: This could lead to a Reading & Writing score of about 580 and a Math score of about 550. The total score would be around 1130.
- Selection Index: (2 * 580 + 550) / 10 = 171.
How to Use This PSAT Score Calculator
- Take a Practice Test: Use an official or high-quality PSAT practice test.
- Count Your Correct Answers: For the Reading & Writing and Math sections, count the total number of questions you answered correctly. There’s no penalty for wrong answers, so your raw score is simply the number you got right.
- Enter Your Raw Scores: Input these two numbers into the fields above.
- Calculate: Click the “Calculate My Score” button.
- Interpret the Results: The calculator will display your estimated total score, section scores, and your National Merit Selection Index. Use these scores to see how you stack up against college readiness benchmarks and National Merit cutoffs. You can find more information in our SAT Score Calculator guide.
Key Factors That Affect calculators used on psat
A major factor for success on the Math section is understanding the official calculator policy. For the digital PSAT, a graphing calculator is built into the testing application (Bluebook™), which is a version of the Desmos calculator. However, students are also permitted to bring their own approved calculator.
What Calculators Are Allowed on the PSAT?
Students can use a calculator on both modules of the Math section. The College Board permits most graphing calculators and all scientific calculators.
- Graphing Calculators: Most models are allowed (e.g., TI-84 Plus, TI-Nspire non-CAS).
- Scientific Calculators: All are permitted.
- Four-Function Calculators: Allowed, but not recommended due to limited functionality.
What Calculators Are PROHIBITED?
It’s crucial to know what you cannot bring. Prohibited devices include:
- Calculators with a QWERTY (typewriter-style) keyboard.
- Calculators with wireless communication, internet access, or smartphone-type features.
- Pen-input devices or styluses.
- Calculators that make noise, use paper tape, or need an electrical outlet.
- Models with a Computer Algebra System (CAS), such as the TI-89, TI-92, or TI-Nspire CAS.
Always check the official College Board website for the most current list of approved and prohibited calculators before test day. For more on test day strategies, see our guide on PSAT vs SAT.
Frequently Asked Questions (FAQ)
1. Can I use my phone as a calculator?
No, phones, tablets, and any device with internet or communication capabilities are strictly forbidden.
2. Is the built-in Desmos calculator good enough?
Yes, the integrated Desmos calculator is a powerful graphing tool that is sufficient for all questions on the test. However, if you are more comfortable with your own handheld calculator, you should practice with and bring that one.
3. What happens if I bring a prohibited calculator?
You will not be allowed to use it, and in some cases, it could lead to the dismissal from the test and cancellation of your scores.
4. Do I need a graphing calculator to do well?
No. While recommended, all questions can be solved without a calculator. A scientific calculator is often sufficient for most students.
5. How is the Selection Index (SI) used?
The NMSC uses the SI as the initial screening tool for its scholarship programs. Students with the highest SI scores in each state are named Semifinalists.
6. Does a good PSAT score guarantee a good SAT score?
A good PSAT score is a strong predictor of a good SAT score, as the tests measure similar skills and are on a comparable scale. However, continued practice is key. Explore our GPA calculator to see how your grades factor into college admissions.
7. Is there a penalty for guessing on the PSAT?
No, the digital PSAT uses “rights-only” scoring. You earn points for correct answers and are not penalized for incorrect ones. It is always in your best interest to answer every question.
8. Where can I find my PSAT scores?
Your scores are typically available online through your College Board account a few weeks after you take the test.