Golf tools
Handicap Calculator
Work out your World Handicap System score differential and your course handicap for any set of tees, instantly.
Score differential
The number each round adds to your handicap record.
Course handicap
How many strokes you receive on a particular course and set of tees.
How the calculations work
Both calculators use the formulas of the World Handicap System, which is used by golfers around the world.
Score differential
Score Differential = (113 ÷ Slope Rating) × (Adjusted Gross Score − Course Rating − PCC)Your adjusted gross score is your score after capping any hole at net double bogey (par + 2 + any handicap strokes you receive on that hole). PCC is the playing conditions calculation — a small daily adjustment, usually zero. The result is rounded to one decimal place.
Course handicap
Course Handicap = Handicap Index × (Slope Rating ÷ 113) + (Course Rating − Par)The result is rounded to the nearest whole number. For competitions, the committee may apply a handicap allowance, giving your playing handicap.
Your Handicap Index
Once you have 20 scores, your Handicap Index is the average of your best 8 score differentials from your most recent 20 rounds. Your official index is calculated by your golf club or national association; these tools are for estimates and learning.
Playing a Stableford competition? The Stableford calculator scores your card hole by hole and works out your adjusted gross score for you.
Want the full picture? Read the World Handicap System explained in plain English and how to lower your handicap.