Is 21 a Good ACT Score?

A 21 is 1.8 points over the 19.2 national average and 3 over the middle ACT taker. 32 in 100 test takers score higher, and 23 opens the top quarter.

On the enhanced ACT the composite is the average of English, Math and Reading, rounded with halves up, so a 21 needs section scores that add up to at least 62 and at most 64. One point down, a 20 is at the 63rd percentile; one point up, a 22 is at the 72nd.

ACT reports one national rank per composite: the share of recent graduates who tested and scored at or below it. ACT's national average composite was 19.2 for the class of 2026; a 21 is 1.8 points above it.

On the SAT, a 21 matches 1060 to 1090, with 1080 as the single value ACT prints beside it. See the 21 row on the ACT to SAT conversion chart or see whether 1080 is a good SAT score.

To move from 21 to 22, your three section scores must add up to 65 instead of 62: 3 section points in any section. On ACT's National Online Practice Test 2, a 21 on all three sections takes 25 English, 24 Math and 16 Reading answers, 65 of 108; 22 on all three takes 69, about 4 more.

The next line after that is 23 (the top quarter of ACT takers), which takes 72 right answers on the same form. The ACT score calculator shows how far your own sections sit from the next composite; ACT superscores across test dates, and many colleges use the superscore.

That depends on the college, so we list no admission ranges. Section C9 of each college's Common Data Set gives the 25th and 75th percentile ACT composites of its enrolled first-year students: at or above the 75th, a 21 is a strength; under the 25th it trails most students, and at a test optional college you can leave it off. Some merit scholarships publish ACT minimums on the college's own aid page, and National Merit uses the PSAT/NMSQT, not the ACT (see what a good PSAT score is).

Ranks: ACT, National Ranks for ACT test scores (Composite), checked Oct 17, 2026. National average: ACT, Graduating Class 2026 national profile, checked Oct 23, 2026. SAT match: ACT and College Board, 2018 ACT/SAT Concordance Tables. Right answer counts: ACT, National Online Practice Test 2 Scoring Key, 2026, checked Oct 17, 2026.

The guide to a good ACT score reads the same files. Official scores come only from ACT.