Calculating your handicap differential is straightforward once you know the Golf Handicap formula and what each input means. This guide explains the method in plain language, walks through a manual calculation, and gives worked examples you can follow — then you can do it instantly with the Golf Handicap Calculator.
What is Golf Handicap?
The Golf Handicap calculation tells you your handicap differential from a few simple inputs. The figure you are solving for here is the handicap differential.
The Golf Handicap formula
The core formula is:
Handicap differential = (Adjusted gross score - Course rating) × 113 ÷ Slope ratingHere is what each input means:
- Adjusted gross score — a number. Example: 90.
- Course rating — a number. Example: 72.
- Slope rating — a number. Example: 113.
How to calculate it step by step
- Write down the adjusted gross score (for example, 90).
- Write down the course rating (for example, 72).
- Write down the slope rating (for example, 113).
- Apply the formula above to get your handicap differential.
- Double-check the result with the Golf Handicap Calculator.
Worked examples
Example 1
| Input / Output | Value |
|---|---|
| Adjusted gross score | 90 |
| Course rating | 72 |
| Slope rating | 113 |
| Handicap differential | 18.0 |
With adjusted gross score of 90, course rating of 72 and slope rating of 113, the handicap differential works out to 18.0.
Example 2
With adjusted gross score of 180, course rating of 72 and slope rating of 113, the handicap differential works out to 108.0.
| Result | Value |
|---|---|
| Handicap differential | 108.0 |
Example 3
With adjusted gross score of 45, course rating of 72 and slope rating of 113, the handicap differential works out to -27.0.
| Result | Value |
|---|---|
| Handicap differential | -27.0 |
Tips for an accurate result
- Keep your units consistent — mixing, say, months with years or grams with kilograms is the most common source of error.
- Round only at the very end. Rounding inputs early can shift the final answer noticeably.
- Re-run the numbers whenever an input changes, rather than estimating from an old result.
Prefer not to do the maths by hand? — the Golf Handicap Calculator does it instantly, for free, with the formula and a worked example built in.
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