Golf Handicap Calculator — Simplified & Unofficial

How to use

1. Add each round: adjusted gross score, course rating and slope.
2. Keep going until you have 5–20 rounds in the list.
3. Press Calculate for your index and the per-round differential table.
4. Type a target slope to see your course handicap for that tee.

About this tool

An official World Handicap System index requires posted rounds through a licensed club — this page gives you the honest back-of-the-scorecard version instead. Enter between 5 and 20 rounds, each with your adjusted gross score, the course rating and the slope (55–155). The tool computes each differential as (AGS − rating) × 113 ÷ slope, averages your best handful of rounds — how many count depends on how many you have entered, per the standard lookup table — then multiplies by 0.96 and floors the result to one decimal. It also converts your index into a course handicap for any target slope so you can count strokes on an unfamiliar course. Simplified and unofficial by design: perfect for settling office-league debates and tracking your own progress.

FAQ

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