Calculator tool
How this calculator works
The result depends on the numbers you enter and the assumptions shown below.
Handicap Differential = (Score − Course Rating) × 113 / Slope Rating. The Handicap Index uses the best 8 of your last 20 differentials × 0.96. Slope Rating 113 is the standard course slope.
Review the inputs carefully and treat the output as an estimate. For decisions involving money, taxes, health, law, or security, compare the result with trusted professional guidance when needed.
Frequently asked questions
What is a course rating?
Course Rating is the expected score for a scratch golfer under normal playing conditions. Slope Rating (55-155, standard 113) measures difficulty for bogey golfers relative to scratch golfers.
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