Calculate WHS Handicap Index

Enter between 3 and 20 recent 18-hole scores.

Round	Score	Course Rating	Slope Rating

How to use this calculator

The World Handicap System (WHS) requires a minimum of 3 rounds to establish a Handicap Index, and it uses up to your 20 most recent rounds. Enter your adjusted gross score, the Course Rating, and the Slope Rating for each round you've played.

What is a Score Differential?

A score differential measures your performance on a specific course on a specific day. The formula is: (Score - Course Rating) x (113 / Slope Rating). Your Handicap Index is based on the average of your best score differentials.