If, however, we look at the percentage of students who score below a certain score, we can make an attempt at comparison. For example, on the SAT Math section, 50% of students scored a 520 or lower. On the ACT Math section the 50% line falls just below a score of 20.
In the table below, I've compared the ACT and SAT Critical Reading and Mathematics sections with their corresponding percentage.
Also be sure to read What's a Good SAT Score? and What's a Good ACT Score?
| Convert ACT to SAT | |||||
| Reading | Math | ||||
| SAT | ACT | % | SAT | ACT | % |
| 800 | 36 | 99 | 800 | 36 | 99 |
| 770 | 34 | 99 | 770 | 33 | 98 |
| 740 | 33 | 98 | 740 | 32 | 97 |
| 710 | 32 | 96 | 710 | 30 | 95 |
| 680 | 31 | 93 | 680 | 28 | 91 |
| 650 | 30 | 90 | 650 | 26 | 85 |
| 620 | 28 | 84 | 620 | 25 | 80 |
| 590 | 26 | 77 | 590 | 24 | 72 |
| 560 | 24 | 69 | 560 | 22 | 64 |
| 530 | 22 | 59 | 530 | 20 | 54 |
| 500 | 20 | 49 | 500 | 19 | 44 |
| 470 | 19 | 38 | 470 | 17 | 35 |
| 440 | 17 | 28 | 440 | 16 | 25 |
| 410 | 15 | 20 | 410 | 15 | 17 |
| 380 | 14 | 12 | 380 | 15 | 11 |
| 350 | 13 | 8 | 350 | 14 | 7 |
| 320 | 11 | 4 | 320 | 13 | 4 |
| 290 | 10 | 2 | 290 | 13 | 2 |
| 260 | 8 | 1 | 260 | 11 | 1 |

