How to use the Golf Handicap Calculator
The golf handicap calculator estimates your handicap index from your scores using the World Handicap System method.
Open the Golf Handicap Calculator →
What you need to enter
- Recent gross scores (comma separated)
- Course rating
- Slope rating
The formula
Differential = (score − course rating) × 113 ÷ slope. The index is the average of the best differentials.
Worked example
Using the default values in the calculator:
- Recent gross scores (comma separated): 88, 91, 85, 94, 90, 87
- Course rating: 71.2
- Slope rating: 125
| Handicap index | 13.4 |
| Differentials used | 2 of 6 |
| Course handicap | 15 |
Tips for better results
- Enter at least 20 rounds for the full method.
- Your club may have extra adjustments.
Common mistakes to avoid
- Using different courses without their own ratings.
- Entering net scores.
Please note: Results are estimates for general use. For safety-critical work such as electrical or building projects, check with a qualified professional and local codes. See our Disclaimer.