--- title: "SAT Standard Deviation: What Does It Mean for You? · PrepScholar" description: What is the SAT standard deviation? We explain what the SAT mean and standard deviation represent, show the SAT bell curve, and analyze what it means for you. image: https://360031.fs1.hubspotusercontent-na1.net/hubfs/360031/feature_satstandarddeviation.jpg --- **[![PrepScholar](https://www.prepscholar.com/wp-content/uploads/2023/03/PrepScholar-Logo-Colored.png)](https://www.prepscholar.com/)** CALL NOW: [+1 (866) 811-5546](tel:18668115546) [![Start Free Trial](https://no-cache.hubspot.com/cta/default/360031/interactive-171805697634.png)](https://cta-service-cms2.hubspot.com/web-interactives/public/v1/track/redirect?encryptedPayload=AVxigLKJluK2NyG3jpAJh%2F2lClc1fhnVHyMZoQonqRxtJngB8FMX6lc78F84JqOaVAL0d36TA5%2FYuH%2FLCJw8AG3ewREi%2F7a3XDouZgjxWfYCBUge6z76KnSykOxONl3avMK0gUjJGpJdyJE2BDTx8g3bsgHwMtx4Kr9Jfh6Jr7WA2XEIgtLw1OoVvAMo4Kw%3D&webInteractiveContentId=171805697634&portalId=360031) ## Choose Your Test SAT Prep ACT Prep [PrepScholar Advice Blog](https://blog.prepscholar.com/) ☰ - Search Blogs By Category - [SAT](https://blog.prepscholar.com/topic/sat) - [ACT](https://blog.prepscholar.com/topic/act) - [College Admissions](https://blog.prepscholar.com/topic/college-admissions) - [AP and IB Exams](https://blog.prepscholar.com/topic/advanced-placement-ap) - [PSAT](https://blog.prepscholar.com/topic/psat-info-and-strategies) - [TOEFL](https://blog.prepscholar.com/topic/toefl) - [GPA and Coursework](https://blog.prepscholar.com/topic/coursework-gpa) # [SAT Standard Deviation: What Does It Mean for You?](https://blog.prepscholar.com/sat-standard-deviation) ![author image](http://cdn2.hubspot.net/hubfs/360031/author_lauras.png) Posted by [Laura Staffaroni](https://blog.prepscholar.com/author/laura-staffaroni) | Updated on January 7, 2025 [SAT](https://blog.prepscholar.com/topic/sat)   ![](https://360031.fs1.hubspotusercontent-na1.net/hub/360031/hubfs/feature_satstandarddeviation.jpg?width=600&height=342&name=feature_satstandarddeviation.jpg "feature_satstandarddeviation.jpg") If you've ever glanced through any of the year-end College Board data reports, you may have seen information about the **SAT standard deviation**. Unfortunately, the reports just list the numbers and then move on, without explaining at all what these numbers mean. **So how is info about the SAT mean and standard deviation useful to you?** In this article, we'll explain what the term standard deviation refers to and what it means for you and your SAT score. Feature image credit: [Bell Curve](https://www.flickr.com/photos/53272102@N06/16597948915/) by [Abhijit Bhaduri](https://www.flickr.com/photos/53272102@N06/)/Flickr   **Bonus: Looking for the very best guides to every SAT section?** Check out our top guides for every single section of the SAT. Choose the score level you're aiming for: **800 Score Guides:** [SAT Reading](https://blog.prepscholar.com/how-to-get-800-on-sat-reading-10-strategies-by-a-perfect-scorer) | [SAT Writing](https://blog.prepscholar.com/how-to-get-800-on-sat-writing-11-strategies-from-a-perfect-scorer) | [SAT Math](https://blog.prepscholar.com/how-to-get-800-on-sat-math-by-a-perfect-scorer) | [SAT Essay](https://blog.prepscholar.com/how-to-get-a-perfect-sat-essay-score) Choose these guides if you're scoring a 600 or above on a section, and you want to get the highest SAT score possible. **600 Score Guides:** [SAT Reading](https://blog.prepscholar.com/how-to-improve-your-low-sat-reading-score-6-strategies) | [SAT Writing](https://blog.prepscholar.com/how-to-improve-your-sat-writing-score-8-key-strategies) | [SAT Math](https://blog.prepscholar.com/how-to-improve-low-sat-math-scores-and-get-to-a-600) | [SAT Essay](https://blog.prepscholar.com/sat-essay-tips-15-ways-to-improve-your-writing-score) Choose these guides if you're scoring below a 600 on a section, and you want to boost your score to at least a 600 level. These are the very best guides available on boosting your SAT score, section by section. They're written by Harvard grads and perfect SAT scorers. Don't disappoint yourself - read these guides and improve your score today. ## What Is the SAT Standard Deviation? The standard deviation of a set of numbers measures variability. Standard deviation tells you, on average, how far off most people's scores were from the average (or mean) score. **The SAT standard deviation for 2024 is 229 points, which means that most people scored within 229 points of the mean score** on either side (either above or below it). SAT standard deviation is calculated so that 68% of students score within one standard deviation of the mean, 95% of students score within two standard deviations of the mean, and 99+% of students score within three standard deviations of the mean. If the standard deviation of a set of scores is **low**, that means most students get **close to the average** score (in this case, 1024). This is pretty clearly not the case with the SAT, because otherwise schools that boast 1300+ average SAT scores for admitted students would have no students. By contrast, if the standard deviation is **high**, then there's more variability and **more students score farther away from the mean**. Based on the most recent data released for the SAT, the standard deviation is relatively high, meaning that there is quite a bit of variability in how students score on the SAT. Below, we've created a table with the data about the SAT mean and standard deviation for each section of the test, as well as the mean and standard deviation for total SAT scores. |   | **SAT Participation and Performance** | | | --- | --- | --- | |   | **Mean** | **Standard** **Deviation** | | **Total** | 1024 | 229 | | **ERW** | 519 | 114 | | **Math** | 505 | 125 | Note: this table only includes [data](https://reports.collegeboard.org/pdf/2020-total-group-sat-suite-assessments-annual-report.pdf) drawn from the most recent test scores of 2024 high school graduates. ![body_SAT bell curve.jpg](https://360031.fs1.hubspotusercontent-na1.net/hub/360031/hubfs/body_SAT%20bell%20curve.jpg?width=246&name=body_SAT%20bell%20curve.jpg)[Hardeep Singh](https://www.flickr.com/photos/hname/3570152750/in/photostream/)/Flickr   ## What Does the SAT Bell Curve Look Like? The bell curve for SAT scores is pretty close to an ideal normal curve. Since the average score is higher than the midpoint of the range (1024 instead of 1000), it's a little shifted over to the right, but otherwise the SAT bell curve is a regular bell shape. Because the SAT standard deviation for total SAT scores is 217 and the mean is 1024, we can do a little quick math to figure out the score ranges for the first, second, and third standard deviation. | **% of SAT scores in range** | **Total Score Range** | **ERW Range** | **Math Range** | | --- | --- | --- | --- | | 68% | 795-1253 | 404-633 | 380-630 | | 95% | 566-1482 | 291-747 | 255-755 | | 99+% | 337-1711 | 177-861 | 130-880 |   To help you better visualize the distribution of SAT scores, we've graphed out the SAT bell curve (in blue) for **composite SAT scores (out of 1600)** and added in lines for the mean and each of the standard deviations. The green line in the chart is the average SAT score (1024), while the lines on either side of the mean represent the boundaries of the different standard deviations. ![body_2024SDchart](https://360031.fs1.hubspotusercontent-na1.net/hub/360031/hubfs/body_2024SDchart.jpg?width=517&height=311&name=body_2024SDchart.jpg) The two yellow vertical lines on the chart represent the first standard deviation scores, 795 and 1253. The scores of 68% of all students who took the SAT fall in between those two lines. The two orange lines on the chart represent the second standard deviation scores, 566 and 1482. The scores of 95% of all students who took the SAT fall in between the two orange lines (including the 68% who scored between an 795 and a 1253). The two red lines on the chart represent the third standard deviation scores, 337 and 1711. Technically, because the SAT only goes from 400-1600, there are no students who scored above or below those values, which is why the blue curve of all student SAT scores starts at 400 and stops abruptly at 1600. The scores of about 99% of all students who took the SAT fall between the two red lines.   **Extra Advice: Want to get into the best college you can?** [Read our famous guide on how to get into Harvard, the Ivy League, and your top choice college](https://blog.prepscholar.com/how-to-get-into-harvard-and-the-ivy-league-by-a-harvard-alum). In this guide, you'll learn: - What colleges are looking for in your application - How to impress your top choice colleges - Why you're probably wasting your time on activities that don't matter Even if you're not actually interested in Ivy League schools, you'll still learn something fundamental about how to apply to college. [Read our top college admissions guide](https://blog.prepscholar.com/how-to-get-into-harvard-and-the-ivy-league-by-a-harvard-alum) today.   ## Why Does the SAT Standard Deviation Matter? As a student, the exact details of the SAT bell curve and standard deviation aren't going to be all that relevant. Most of the info you'd get from standard deviations you can just as easily get from the information about your **percentile rank** that's included on your [score report](https://blog.prepscholar.com/sat-test-results-how-to-get-and-interpret-your-results). For instance, knowing you're in the 98th percentile is probably more useful to you than knowing you're a little more than two standard deviations above the mean SAT score.   ### Learn How Much Scores Vary The size of the standard deviation can give you information about **how widely students' scores varied from the average**. A larger standard deviation means there was more variation of scores among people who took the test, while a smaller standard deviation means there was less variance. As we discussed above, the SAT standard deviation is 229, which is relatively high and therefore indicates there's a lot of variation in scores among students who take the SAT. **Practically speaking, this means that high-achieving students have to get relatively high scores in order to distinguish themselves.** To do better than 95% of students on the SAT with a mean of 1024 and a standard deviation of 229, [you must get a **1482 or higher** on the test](https://collegereadiness.collegeboard.org/pdf/understanding-sat-scores.pdf).  ![body_getahigherscore.png](https://360031.fs1.hubspotusercontent-na1.net/hub/360031/hubfs/body_getahigherscore.png?width=279&name=body_getahigherscore.png)   ### Discover How Your Score Stacks Up The standard deviation of SAT scores is also useful information because it gives you a good general idea about **how well you performed, compared to other students**. Based on which standard deviation you fall into, you can even figure out your rough percentile score (if you don't know it). If your SAT score is **more than one standard deviation** above the [average SAT score](https://blog.prepscholar.com/what-is-the-average-sat-score), then you did **better than about 84% of students**, which puts you in a strong position for most state schools (including [the University of Montana](https://www.prepscholar.com/sat/s/colleges/University-of-Montana-admission-requirements), [University of Cincinnati](https://www.prepscholar.com/sat/s/colleges/University-of-Cincinnati-admission-requirements), and [UT San Antonio](https://www.prepscholar.com/sat/s/colleges/UTSA-SAT-scores-GPA)) and some private schools (like [Pace University](https://www.prepscholar.com/sat/s/colleges/Pace-University-SAT-scores-GPA), [Temple University](https://www.prepscholar.com/sat/s/colleges/Temple-University-SAT-scores-GPA), and [Quinnipiac University](https://www.prepscholar.com/sat/s/colleges/Quinnipiac-admission-requirements)). Similarly, if your score is **more than** **two standard deviations** above the mean SAT score, then you did **better than around 97% of students**, which is great and makes you a strong candidate for more competitive schools like [NYU](https://www.prepscholar.com/sat/s/colleges/NYU-admission-requirements), [UMich (Ann Arbor)](https://www.prepscholar.com/sat/s/colleges/University-of-Michigan-SAT-scores-GPA), and even Ivy League schools like [UPenn](https://www.prepscholar.com/sat/s/colleges/University-of-Pennsylvania-SAT-scores-GPA) and [Brown](https://www.prepscholar.com/sat/s/colleges/Brown-University-admission-requirements). On the other hand, if your score is **more than one standard deviation below the mean**, you definitely have your work cut out for you if you want to be a competitive applicant for most schools. You'll need to put in some [serious study time](https://blog.prepscholar.com/how-long-should-i-study-for-the-sat-6-step-guide) to [boost your score](https://blog.prepscholar.com/15-sat-tips-to-improve-your-sat-score) up to an [840+ score level](https://www.prepscholar.com/sat/s/scores/840-SAT-score-is-this-good).   ![body_boostyourscoretonewheights.jpg](https://360031.fs1.hubspotusercontent-na1.net/hub/360031/hubfs/body_boostyourscoretonewheights.jpg?width=382&name=body_boostyourscoretonewheights.jpg)   **Bonus: Want to get a perfect SAT score?** [Read our famous guide on how to score a perfect 1600 on the SAT](https://blog.prepscholar.com/how-to-get-a-perfect-sat-score-by-a-2400-sat-scorer). You'll learn top strategies from the country's leading expert on the SAT, Allen Cheng, a Harvard grad and perfect scorer. No matter your level, you'll find useful advice here - this strategy guide has been read by over 500,000 people. [Read the 1600 SAT guide today](https://blog.prepscholar.com/how-to-get-a-perfect-sat-score-by-a-2400-sat-scorer) and start improving your score.   ## What's Next? **Ready to get more precise information of how your SAT score compares to other students' scores?** Check out [our article on SAT scores and percentiles](https://blog.prepscholar.com/sat-percentiles-and-score-rankings) to figure out where you fit in. **Are you a high-achieving student with high SAT score dreams?** [Learn what SAT scores you need to get into the Ivy League here](https://blog.prepscholar.com/good-sat-scores-ivy-league-plus). **What if you're worried your score might be too low to get you into college at all?** Find out what the [minimum SAT score for college is here](https://blog.prepscholar.com/minimum-sat-score-for-college). **Need to figure out what SAT score to aim for in the first place?** We have a [complete guide to setting your target SAT score in this article](https://blog.prepscholar.com/what-is-a-good-sat-score-a-bad-sat-score-an-excellent-sat-score).   [![Want to improve your SAT score by 160 points or your ACT score by 4 points?   We've written a guide for each test about the top 5 strategies you must be using to have a shot at improving your score. 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She scored 99 percentile scores on the SAT and GRE and loves advising students on how to excel in high school. ## Ask a Question Below Have any questions about this article or other topics? 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We explain what the SAT mean and standard deviation represent, show the SAT bell curve, and analyze what it means for you.", "headline" : "SAT Standard Deviation: What Does It Mean for You?", "image" : "https://cdn2.hubspot.net/hubfs/360031/feature_satstandarddeviation.jpg", "mainEntityOfPage" : { "@id" : "https://blog.prepscholar.com/sat-standard-deviation", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.prepscholar.com/wp-content/uploads/2023/03/PrepScholar-Logo-Colored.png" }, "name" : "PrepScholar" } } ```