Golf Handicap Calculator
Calculate your handicap differential from a round, the building block of your World Handicap System index.
Advertisement · ad unit slot
How to use the golf handicap calculator
- Enter your adjusted gross score for the round.
- Enter the course rating and slope rating from the scorecard.
- Click Calculate to get your score differential.
From a single round to a handicap index
One differential is just one data point. The World Handicap System averages your eight best differentials out of your most recent twenty rounds, so your index reflects your demonstrated potential rather than any single good or bad day.
Frequently asked questions
How is a golf handicap calculated?
Each round produces a differential: (Score − Course Rating) × 113 ÷ Slope Rating. Your handicap index is the average of your best 8 differentials from your last 20 rounds.
What is slope rating?
Slope rating measures how difficult a course is for a bogey golfer relative to a scratch golfer. The standard average is 113.