Golf Handicap Calculator
Calculate your golf Handicap Index from your recent scores, course ratings and slope ratings (World Handicap System), plus your course handicap. Free.
- Course handicap
- 16
- Scores entered
- 5
- Differentials used
- Lowest 1
- Best differential
- 15.3
World Handicap System. Use adjusted gross scores (net double bogey caps each hole).
How a Handicap Index is calculated
Under the World Handicap System, each round gives a score differential: (113 ÷ slope rating) × (adjusted gross score − course rating). Your Handicap Index is the average of your best 8 differentials from your last 20 rounds. With fewer rounds, fewer differentials count, with small adjustments for 3, 4 and 6 rounds. For a course you're about to play, your course handicap is Index × slope ÷ 113 + (course rating − par). Use adjusted scores, with each hole capped at net double bogey.
How to use it
- 1
Enter your scores
Score, course rating and slope rating for each round (up to 20).
- 2
Add today's course
Its slope, rating and par, for your course handicap.
- 3
Read your index
Handicap Index and course handicap.
Frequently asked questions
How many rounds do I need?
At least 3 (54 holes). The index uses the best 8 of your last 20 once you have 20.
What is the slope rating?
How much harder a course plays for a bogey golfer than a scratch golfer. 113 is the standard; it ranges from 55 to 155.
What is net double bogey?
The maximum score per hole for handicap purposes: par + 2 + any handicap strokes you get on that hole.
Is my data stored?
No. Your scores stay in your browser.