Why take the ACT if I already took the SAT? Here's an ACT 101 for college-applicants
The SAT was introduced in 1926 by the College Board and uses a different scoring system from the ACT. Scores for the SAT range from the lowest possible score of 400 to the highest possible score of 1600. The ACT has a lowest possible score of 1 and a highest possible score of 36.