Enter the Adjusted Gross Score and the number of rounds played into the calculator to determine the Golf Index. This calculator can also evaluate any of the variables given the others are known.

Golf Index Formula

The following formula is used to calculate the Golf Index.

GI = (96 * AGS) / N


  • GI is the Golf Index
  • AGS is the Adjusted Gross Score (sum of the lowest scores on record)
  • N is the number of rounds played

To calculate the Golf Index, multiply 96 by the Adjusted Gross Score, which is the sum of the lowest scores on record. Then divide the result by the number of rounds played. The quotient is the Golf Index.

What is a Golf Index?

A Golf Index is a standardized measurement used to calculate a golfer’s potential skill level. It is not an average of all scores, but rather an indication of potential ability based on the best scores. The Golf Index is used to level the playing field, allowing golfers of different skill levels to compete against each other. It is calculated using a complex formula that takes into account factors such as course difficulty and weather conditions.

How to Calculate Golf Index?

The following steps outline how to calculate the Golf Index.

  1. First, determine the Adjusted Gross Score (AGS) by summing the lowest scores on record.
  2. Next, determine the number of rounds played (N).
  3. Next, gather the formula from above = GI = (96 * AGS) / N.
  4. Finally, calculate the Golf Index.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

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

Adjusted Gross Score (AGS) = 80

Number of rounds played (N) = 10