SAT Score Calculator

10 ACT to SAT Conversion

An ACT composite of 10 equals an SAT total of about 630, within 620 to 640 on the official concordance.

ACT to SAT converterIs 630 a good SAT score?
ACT composite
10
SAT equivalent
630
Official SAT range
620–640
SAT percentile
3rd

What a 10 ACT score means on the SAT scale

On the concordance table published jointly by ACT and College Board, an ACT composite of 10 corresponds to an SAT total of 630. Because one ACT point spans several SAT points, the table also gives a range, 620–640, and colleges treat any SAT score in that range as equivalent to a 10. An SAT 630 is low: the 3rd percentile of SAT takers, or the top 97%. ACT publishes its own percentile tables for the composite, which differ slightly because the two tests are taken by different groups of students.

Which colleges a 10 fits

Admissions readers compare test scores with the middle-50% range of admitted students, published for both tests in each college’s Common Data Set. An SAT-equivalent of 630 is below the national average, which is where focused preparation moves scores fastest. The per-score page is 630 a good SAT score gives the full picture, including section splits and how to move it, and the good-score guide lists sample college ranges.

One ACT point in SAT terms

Moving from a 10 to a 11 is worth about 40 SAT points (670), and a 9 concords to 590. Near the top of both scales each ACT point covers a wider SAT range, which is why a 34 and a 35 look similar to a college that reads scores in SAT terms while a 20 and a 21 sit only about 40 SAT points apart.

ACT Math 10 to SAT Math

The concordance also maps the Math sections directly. An ACT Math score of 10 corresponds to an SAT Math section score of about 260 out of 800. Programs with a Math minimum, common in engineering and business schools, use this section-level table rather than the composite. The Math SAT score calculator shows how many correct answers that takes on the Digital SAT.

Nearby ACT scores

Last updated September 2026. Source: ACT/College Board 2018 concordance tables (composite and Math); SAT percentiles from College Board’s current SAT User tables.

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Calculators & converters

SAT Score CalculatorRaw answers per module to a 400–1600 estimate.SAT Score PredictorPredict your score from a practice test.Math SAT Score CalculatorMath section only, 200–800.Reading & Writing CalculatorReading and Writing section only.SAT Superscore CalculatorYour best sections across test dates.PSAT to SAT ConversionWhat your PSAT score predicts on the SAT.

Scores, guides & resources

What Is a Good SAT Score?Percentiles, score bands and college ranges.SAT PercentilesEvery total and section score ranked.SAT Grading ScaleThe 400–1600 scale, explained.How the SAT Is ScoredAdaptive modules, raw to scaled.How to Improve Your SAT ScoreWhat actually moves the number.SAT vs ACTWhich test to take, and why.SAT Score FAQGood scores, superscores, release dates and more.

10 ACT to SAT: frequently asked questions

What is a 10 ACT score in SAT terms?

An ACT composite of 10 concords to an SAT total of about 630, with an official range of 620–640. That SAT score is at the 3rd percentile of SAT takers.

Is a 10 on the ACT a good score?

Its SAT equivalent of 630 is low (top 97% of SAT takers) and below the national average, which is where focused preparation moves scores fastest. Whether it is good enough depends on the middle-50% ranges at your colleges; see is 630 a good SAT score.

What does a 10 ACT Math score equal on SAT Math?

On the official section concordance, an ACT Math score of 10 corresponds to an SAT Math section score of about 260 (out of 800).

Should I take the SAT instead of the ACT if I have a 10?

Only if a timed official SAT practice test converts to a higher score than 630. The tests reward different strengths, so take one practice test of each and compare using this table. Colleges accept both equally.