What this calculator does
Golf course handicap works out course handicap for a round, from Handicap Index, Slope Rating and Course Rating. Enter your own figures above and the answer updates as you type: nothing is fixed in the code, so the result reflects exactly the numbers you supply.
The formula this calculator evaluates is printed under the tool and explained below, so you can check the working by hand or reuse it in a spreadsheet.
The formula
FormulaCourse Handicap = Handicap Index × (Slope Rating / 113) + (Course Rating − Par)
The inputs explained
| Field | What to enter |
|---|---|
| Handicap Index | A number. Starts at 12.4. |
| Slope Rating | A number. Starts at 128. |
| Course Rating | A number. Starts at 71.5. |
| Par | A number. Starts at 72. |
Worked examples
Every figure in the tables below is produced by this page’s own calculator at build time, so the numbers and the tool always agree. Select any row to load that scenario.
How the answer changes with handicap index
Every other input is held at the calculator’s starting values while handicap index varies. Select any row to load that scenario into the calculator.
How the answer changes with handicap index
| Handicap Index | Course handicap | Exact value | Formula used |
|---|---|---|---|
| 6.2 | 7 | 6.52 | Course Handicap = Handicap Index × (Slope Rating ÷ 113) + (Course Rating − Par), the World Handicap System formula |
| 9.3 | 10 | 10.03 | Course Handicap = Handicap Index × (Slope Rating ÷ 113) + (Course Rating − Par), the World Handicap System formula |
| 12.4 | 14 | 13.55 | Course Handicap = Handicap Index × (Slope Rating ÷ 113) + (Course Rating − Par), the World Handicap System formula |
| 18.6 | 21 | 20.57 | Course Handicap = Handicap Index × (Slope Rating ÷ 113) + (Course Rating − Par), the World Handicap System formula |
| 24.8 | 28 | 27.59 | Course Handicap = Handicap Index × (Slope Rating ÷ 113) + (Course Rating − Par), the World Handicap System formula |
| 37.2 | 42 | 41.64 | Course Handicap = Handicap Index × (Slope Rating ÷ 113) + (Course Rating − Par), the World Handicap System formula |