Golf Handicap Calculator
Compute a round's handicap differential under the WHS.
Handicap differential
18.4
vs. course rating
20.8 over
How the index works
Average of best 8 of last 20 differentials
Normalizing every course
The differential adjusts a score for course difficulty: (score − rating) × 113 ÷ slope. Rating measures scratch difficulty; slope measures how much harder the course plays for bogey golfers (113 is neutral). A 92 on a hard course can beat an 89 on an easy one.
From rounds to index
The World Handicap System averages your best 8 differentials of the last 20 rounds — rewarding potential, not average play. Course handicap then rescales the index to each course's slope, which is why your strokes vary from track to track.
Frequently asked questions
- How does the Golf Handicap Calculator work?
- Compute a round's handicap differential under the WHS.
- Is the Golf Handicap Calculator free to use?
- Yes. The Golf Handicap Calculator is completely free, runs entirely in your browser, and requires no account or sign-up. Your inputs never leave your device.
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