Enter the GPA, SAT score, and ACT score into the calculator to determine the Academic Index.

Academic Index Formula

The following formula is used to calculate the Academic Index.

AI = (2 * GPA + SAT/10 + ACT/2) / 4


  • AI is the Academic Index
  • GPA is the Grade Point Average (on a 4.0 scale)
  • SAT is the total SAT score (out of 1600)
  • ACT is the total ACT score (out of 36)

To calculate the Academic Index, multiply the Grade Point Average by 2, divide the total SAT score by 10, and divide the total ACT score by 2. Add these three results together and then divide by 4 to get the Academic Index.

What is an Academic Index?

The Academic Index is a numerical value used by college admissions offices to summarize a student’s academic performance. It is calculated based on standardized test scores, high school grade point average, and class rank. The index is used to compare applicants and determine their eligibility for admission. It is particularly used by Ivy League and other selective institutions to ensure a minimum academic standard among their athletes.

How to Calculate Academic Index?

The following steps outline how to calculate the Academic Index (AI).

  1. First, determine the Grade Point Average (GPA) on a 4.0 scale.
  2. Next, determine the total SAT score (SAT) out of 1600.
  3. Next, determine the total ACT score (ACT) out of 36.
  4. Next, multiply the GPA by 2.
  5. Next, divide the SAT score by 10.
  6. Next, divide the ACT score by 2.
  7. Next, add the results of steps 4, 5, and 6 together.
  8. Finally, divide the sum from step 7 by 4 to calculate the Academic Index (AI).

Example Problem:

Use the following variables as an example problem to test your knowledge.

GPA = 3.5

SAT = 1200

ACT = 28