Last updated: 3 October 2026
Reviewed by Jordan Morley, FA Level 2 Football Coach
A Handicap Index under the World Handicap System (WHS) represents a golfer’s potential ability, expressed as a number to one decimal place. It is calculated from the best score differentials of recent rounds, with a 0.96 multiplier applied. To find the strokes given at a specific course (Course Handicap), use: Handicap Index × Slope ÷ 113 ± (Par − Course Rating). A scratch golfer has a 0 handicap index; beginners start with high indices (28 for men, 36 for women maximum). The WHS replaced multiple regional systems in 2020.
- Best score differentials × 0.96
- Converts to course handicap per course
- 0 = scratch; maximum 54 under WHS
- Replaced national systems globally in 2020
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Open the Golf Handicap Index Calculator →In practice
A golfer's Handicap Index, calculated under the World Handicap System from their best recent rounds, gives a portable measure of potential ability that travels between courses and countries — it converts into a different Course Handicap at each specific course played, accounting for that course's relative difficulty via its slope rating.
FAQ
How is a Handicap Index calculated?
It's based on a golfer's best 8 of their most recent 20 rounds (under the World Handicap System), using each round's Score Differential, which already adjusts for course difficulty and conditions.
Is Handicap Index the same everywhere in the world?
Yes — the World Handicap System unified previously separate regional systems, so a Handicap Index earned in one country is now directly comparable and usable internationally.