SAT to ACT Score Converter
Convert between SAT and ACT composite scores using the official concordance tables. Enter values for instant results with step-by-step formulas.
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Formula
Score conversion uses the official concordance tables jointly developed by the College Board and ACT, based on data from hundreds of thousands of students who took both tests. The tables map each SAT total score (400-1600) to an ACT composite (1-36) at the median equivalence point.
Last reviewed: December 2025
Worked Examples
Example 1: SAT 1350 to ACT Conversion
Example 2: ACT 25 to SAT Conversion
Background & Theory
The SAT to ACT Score Converter applies the following established principles and formulas. Educational measurement applies mathematical principles to quantify learning outcomes, track academic progress, and compare performance across students and institutions. Grade Point Average (GPA) is the central metric. In the standard four-point scale, letter grades are converted to grade points: A equals 4.0, B equals 3.0, C equals 2.0, D equals 1.0, and F equals 0. The GPA is then computed as the sum of (grade points multiplied by credit hours for each course) divided by total credit hours attempted. This weighted average ensures that high-credit courses exert proportionally greater influence on the final figure. Weighted GPA systems assign additional grade-point bonuses to honors, Advanced Placement, or International Baccalaureate courses, typically adding 0.5 to 1.0 points to acknowledge increased academic rigor. Unweighted GPA treats all courses equivalently regardless of difficulty. Percentile rank situates an individual score within a reference distribution: a student at the 75th percentile scored higher than 75 percent of the comparison group. Standardized tests use scaled scores and z-scores to normalize results across different test administrations. Standard deviation in test design quantifies how widely scores spread around the mean, informing item difficulty analysis and test reliability assessment. Bloom's Taxonomy, introduced in 1956, classifies cognitive learning into six hierarchical levels: remember, understand, apply, analyze, evaluate, and create. This framework guides curriculum design by ensuring assessments target higher-order thinking rather than only rote recall. Spaced repetition exploits the psychological spacing effect, whereby information reviewed at increasing intervals is retained far more efficiently than information reviewed in massed sessions. The SM-2 algorithm, developed by Piotr Wozniak in 1987, computes optimal review intervals using an ease factor updated after each recall attempt: I(n) = I(n-1) * EF, where the ease factor EF adjusts based on performance quality rated on a 0 to 5 scale. Flesch-Kincaid readability formulas estimate text difficulty. The Reading Ease score = 206.835 minus 1.015 times the average words per sentence minus 84.6 times the average syllables per word, where higher scores indicate easier text.
History
The history behind the SAT to ACT Score Converter traces back through the following developments. Formal mass education systems emerged in the early 19th century. Prussia established a compulsory state schooling system beginning around 1763 under Frederick the Great, though full enforcement and a structured curriculum took shape in the early 1800s. The Prussian model, emphasizing standardized instruction, teacher training, and compulsory attendance, became a template that the United States, Britain, Japan, and much of Europe adopted throughout the 19th century. Compulsory education laws spread across the industrializing world between roughly 1850 and 1900. Massachusetts passed the first such law in the United States in 1852. By the end of the century most developed nations had established free, publicly funded schooling systems with defined grade levels and curricula. The measurement of individual intelligence and academic aptitude arose at the turn of the 20th century. Alfred Binet, commissioned by the French government to identify students needing additional support, developed the first practical intelligence test in 1905 with Theodore Simon. Their scale introduced the concept of mental age and formed the basis for later intelligence quotient measurements. The Scholastic Aptitude Test, later the SAT, was introduced in the United States in 1926 by Carl Brigham, building on Army intelligence tests used during World War I. It became the dominant college admissions tool over the following decades, institutionalizing standardized testing in American secondary education. The second half of the 20th century brought accountability-driven reform. The Elementary and Secondary Education Act of 1965 tied federal funding to measured outcomes. The No Child Left Behind Act of 2001 required annual standardized testing in core subjects across all public schools and imposed consequences for persistent underperformance, intensifying debate about the validity and consequences of high-stakes testing. The 21st century introduced Massive Open Online Courses, or MOOCs, beginning with the Khan Academy in 2006 and expanding rapidly after Stanford's free online courses attracted hundreds of thousands of students in 2011. Digital learning platforms enabled spaced repetition software, adaptive assessments, and learning analytics to reach global audiences outside traditional institutions.
Frequently Asked Questions
Formula
Concordance-based lookup from official College Board / ACT tables
Score conversion uses the official concordance tables jointly developed by the College Board and ACT, based on data from hundreds of thousands of students who took both tests. The tables map each SAT total score (400-1600) to an ACT composite (1-36) at the median equivalence point.
Worked Examples
Example 1: SAT 1350 to ACT Conversion
Problem: A student scored 1350 on the SAT and wants to know the ACT equivalent to compare with a friend who took the ACT.
Solution: Using the official concordance table:\nSAT 1350 falls between table entries 1340 (ACT 27) and 1360 (ACT 28)\nClosest match: SAT 1350 = ACT 28\nPercentile: approximately 88th percentile\nCompetitiveness: Competitive (Top 20%)\nScore range: ACT 27-29 considering concordance margin
Result: SAT 1350 = ACT 28 | 88th percentile | Competitive for selective colleges
Example 2: ACT 25 to SAT Conversion
Problem: A student scored ACT 25 and wants to compare against a university that reports SAT score ranges for admitted students.
Solution: Using the official concordance table:\nACT 25 maps to SAT entries around 1260-1280\nMiddle value: SAT 1270\nPercentile: approximately 78th percentile\nCompetitiveness: Above Average (Top 35%)\nSAT range: 1250-1290 considering concordance margin
Result: ACT 25 = SAT 1270 | 78th percentile | Above Average
Frequently Asked Questions
How accurate is the SAT to ACT score conversion?
The SAT to ACT concordance tables are developed jointly by the College Board and ACT based on extensive research with hundreds of thousands of students who took both tests. The conversion is statistically reliable for most score ranges but is most accurate in the middle range of scores where the most data exists. At the extreme high and low ends, fewer students have taken both tests, so the concordance is slightly less precise. The tables represent median performance, meaning about half of students with a given SAT score would score higher than the concorded ACT score and half would score lower. Individual variation depends on personal strengths and the specific content tested. Most colleges accept the concordance tables as authoritative when comparing applicants who submitted different tests.
Should I take the SAT or the ACT?
The choice between SAT and ACT depends on your strengths and test-taking style. The SAT focuses more on evidence-based reasoning and data interpretation with fewer, more complex questions per section. The ACT covers more content breadth, includes a science reasoning section, and has more straightforward questions but stricter time limits. Students who excel at math tend to find the SAT math section slightly easier because it allows calculator use throughout and covers fewer advanced topics. Students who are strong science readers may prefer the ACT because the science section tests data interpretation skills that the SAT lacks. The best approach is to take a practice test for each exam under realistic conditions and compare your scores using the concordance table to determine which test yields a higher equivalent score.
Do colleges prefer the SAT or ACT?
Virtually all four-year colleges and universities in the United States accept both the SAT and ACT equally. No mainstream institution favors one test over the other in their admissions process. When a student submits an SAT score, admissions officers convert it to an ACT equivalent using the concordance table, or vice versa, to compare applicants on the same scale. Some geographic trends exist in test popularity: the SAT is more commonly taken on the coasts while the ACT dominates in the Midwest and South, but this has no bearing on admissions decisions. Many colleges have moved to test-optional policies since 2020, allowing students to decide whether submitting test scores would strengthen their application. Check each target school current policy for the most accurate information.
What SAT score is equivalent to a 30 ACT?
A 30 on the ACT corresponds to approximately 1400 on the SAT according to the official concordance tables. This places a student in roughly the 93rd percentile, meaning they scored higher than 93 percent of test takers. A 30 ACT or 1400 SAT is competitive for admission to selective universities including many top 50 schools. The concordance range for a 30 ACT spans from about 1390 to 1420 on the SAT, acknowledging that score conversion is not an exact science. Students scoring in this range are typically strong candidates for merit scholarships at many public and private institutions. If you score a 30 on the ACT, it generally would not be worth retaking the SAT unless you believe you could score significantly above 1420.
How do SAT and ACT section scores compare?
The SAT has two main sections: Evidence-Based Reading and Writing scored from 200 to 800, and Math scored from 200 to 800, for a total of 400 to 1600. The ACT has four sections: English scored from 1 to 36, Math from 1 to 36, Reading from 1 to 36, and Science from 1 to 36, with the composite being the average of all four. Direct section-to-section comparison is imperfect because the tests structure content differently. SAT EBRW roughly maps to ACT English plus Reading, while SAT Math maps to ACT Math. The ACT Science section has no direct SAT equivalent, though some science-style reasoning appears in SAT reading passages. The College Board provides section-level concordance tables in addition to the composite concordance for more granular comparison.
What is a good SAT or ACT score for college admissions?
A good score depends entirely on your target schools. For highly selective schools like Ivy League institutions, you generally need a 1500 or higher on the SAT or a 34 or higher on the ACT to be competitive, though these scores alone do not guarantee admission. For selective state flagship universities, scores of 1300 to 1450 SAT or 28 to 33 ACT typically place you in the competitive range. Many solid four-year colleges consider scores of 1100 to 1300 SAT or 22 to 27 ACT as strong. Community colleges and many open-enrollment institutions do not require test scores at all. The best strategy is to research the middle 50 percent score range for admitted students at your target schools, which represents the range between the 25th and 75th percentile of enrolled students.
References
Reviewed by Daniel Agrici, Founder & Lead Developer · Editorial policy