Some Basic Differences:
SAT Areas Tested:
- Critical Reading
- Math
- Writing
Scoring: Each section is scored on a 200-800 scale with a total possible score of 2400.
Testing Length: 3 hours, 45 minutes
ACT Areas Tested:
- English
- Math
- Reading
- Science
- Writing (optional)
Scoring: The English, Math, Reading, and Science are scored on a 1-36 scale and Writing on a 0-12 scale.
Testing Length: 3 hours, 25 minutes (including the 30-minute optional Writing section)