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Golf Handicap Index

Simplified WHS handicap from your last few rounds.

Handicap index
12.9
from 5 rounds, using best 1

Differentials (best 1 averaged)

13.9
15.6
17.8
19.0
21.4

Simplified World Handicap System (WHS) calculation. Uses score differential = (Score − Course Rating) × 113 / Slope. Average the lowest N differentials based on rounds played. The official system has a few more adjustments (PCC, exceptional score reduction) that are skipped here. Need at least 3 rounds.

About

Add at least three rounds with score, course rating, and slope. Get a handicap index using the standard World Handicap System formula: differential = (score − rating) × 113 / slope. The lowest few differentials are averaged based on rounds played.

How to use

  1. Add at least 3 rounds.
  2. Enter score, rating, and slope.
  3. Read your handicap.

FAQ

How many rounds for a real handicap?+

USGA wants 20 to be official. With 5 rounds you get a working number; with 10+ it's pretty stable. The official system has a few extra adjustments (PCC, exceptional score reduction) that are skipped here.