Golf Handicap Calculator
Calculate golf handicap index from recent scores.
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How It Works
Calculates a golf handicap differential using: Differential = (Score - Course Rating) × 113 / Slope Rating. An official handicap uses the best 8 of your last 20 differentials.
Formula
Handicap Index = best differentials avg x 0.96Quick Reference
Common calculations — results you can verify instantly.
Shot 90, Rating 72, Slope 113
(90-72)×113/113
Differential=18
Scratch golfer
Handicap index
0.0
Average golfer
Handicap range
15-25 typical
Tips & Shortcuts
Course Rating represents par performance for a scratch golfer.
Slope Rating measures course difficulty (113 is average; 155 is very hard).
Your handicap index changes after every posted round.
Common Mistakes
Confusing handicap differential with handicap index
Differential is per-round calculation. Handicap Index is the average of best 8 of 20 differentials.
Not adjusting for Equitable Stroke Control (ESC)
ESC limits the maximum score per hole before posting, preventing one bad hole from inflating your handicap.
Frequently Asked Questions
Single digits (0-9) is excellent. 10-18 is good. 19-28 is average. Above 28 is beginner. Scratch = 0 handicap.
Course Handicap = Handicap Index × Slope Rating ÷ 113 + (Course Rating - Par).
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