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21 ACT to SAT: What a 21 ACT Equals on the SAT

An ACT Composite score of 21 concords to an SAT total score of 1080 (official range 1060-1090), according to the official 2018 College Board and ACT concordance tables.

SAT Total
1080
Official SAT Range
1060-1090
Note: 21 also happens to be a value in the separate ACT Math table. If 21 were your ACT Math test score (not your ACT Composite), it would concord to an SAT Math section score of 530. The ACT Composite and the ACT Math test score are different scores, even when the number matches.

Nearby scores

ACT Composite to SAT Total (scores near 21)
ACT CompositeSAT TotalOfficial SAT Range
26 1240 1230-1250
25 1210 1200-1220
24 1180 1160-1190
23 1140 1130-1150
22 1110 1100-1120
21 1080 1060-1090
20 1040 1030-1050
19 1010 990-1020
18 970 960-980
17 930 920-950
16 890 880-910

* marks the score College Board and ACT recommend using when a single score point comparison is needed.

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Frequently asked questions

What SAT score is equal to a 21 ACT?

An ACT Composite score of 21 concords to an SAT total score of 1080, with an official range of 1060-1090, according to the 2018 College Board and ACT concordance tables.

Is a 21 ACT a good score?

Whether 21 is a good score depends on the colleges on your list. Compare it against the middle-50% ACT range each college publishes, or use the SAT equivalent above with our College Finder.

Does this conversion apply to the Digital SAT and the Enhanced ACT?

The concordance table itself is still the 2018 table; ACT states these tables are not updated annually. Since September 2025 the Enhanced ACT reports a Composite score from English, Math, and Reading. Use this conversion as a general reference for either current test, not an exact prediction.

Source: official 2018 concordance tables from College Board and ACT.
*Use this SAT score when a single score point comparison is needed.
Note: Concordance tables for the ACT Composite were derived from concordances of the ACT sum score.