Golf Handicap Calculator (WHS)
Enter your recent round scores with course rating and slope rating to get your WHS Handicap Index, Course Handicap, and expected score right away.
⛳ Recent rounds
Min 3, max 20 rounds. More rounds = more accurate.
Round 1
Differential: 18.0
Round 2
Differential: 15.8★
Round 3
Differential: 18.4
📍 Today's course (for Course Handicap)
Enter the rating of the course you'll play (or compare) and your Course Handicap is calculated.
📊 Handicap result
Handicap Index
13.2
Handicap Index
Course Handicap
13
for current course
average of best 1 differentials × 0.96 · 3 valid round(s)
Expected next-round score
Good day
77
Average day
85
📋 Differentials by round
| Score | CR / Slope | Differential | ★ |
|---|---|---|---|
| 88 | 71.5 / 118 | 15.8 | ★ |
| 90 | 72.0 / 113 | 18.0 | |
| 92 | 72.3 / 121 | 18.4 |
Calculation sources
- 📘 WHS rules: R&A / USGA Rules of Handicapping (World Handicap System)
- ➗ Differential: (adjusted score − course rating) × 113 ÷ slope rating
- 📊 best-N table: WHS Rule 5.2 (3 scores → lowest 1, 20 scores → lowest 8)
- 🎯 Handicap Index: average of best N × 0.96 (capped at 54.0)
- 📍 Course Handicap: index × slope ÷ 113 + (course rating − par)
- 🏞️ Park golf: simplified handicap based on par 66 (Korea Park Golf Assn.)
※ This tool is a reference based on published WHS rules and does not replace an official handicap (KGA / GHIN).
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