To get a golf handicap in the US, join a golf club or a state or regional golf association that issues GHIN handicaps, get your GHIN number, and post scores that add up to 54 holes. Your Handicap Index is then calculated from your best recent scores, up to a maximum of 54.0. Charts and calculators below show how the calculation works. Already have a number but lost it? See how to find your GHIN number.
Here are the steps to getting your Handicap Index:
- Join a club or association that is authorized to issue GHIN handicaps.
- Get your GHIN number and set up your profile in the GHIN app.
- Play and post scores after each round.
- Post 54 holes in total, in any mix of 18-hole and 9-hole scores.
- Your Handicap Index is calculated and then updates as you keep posting.
Step 1: Join a club or association
GHIN stands for Golf Handicap and Information Network, the USGA's handicap service, which golf associations use to issue Handicap Indexes. Under Rule 1.2 of the Rules of Handicapping, a golfer gets a handicap by belonging to an authorized club or association. You do not have to join a private country club: state and regional golf associations also sell handicap memberships directly. Find yours on the GHIN associations page.
What it costs depends on the club or association. Our guide to GHIN cost and free options lists the association fees we checked, which run from $38 to $80 a year (see the table there), and explains the alternatives.
Step 2: Get your GHIN number and the app
Once you join, the club or association gives you a unique GHIN number. You use it to create a profile in the GHIN app and post your scores. Some golfers also post through their association's website. If you cannot find your number, see how to find your GHIN number.
Steps 3 and 4: Post 54 holes
Post every acceptable round, 18 holes or 9. The SCGA says you need scores that add up to 54 holes to establish your Handicap Index, which is then set the day after you reach that threshold. The NCGA (March 2026) gives the same figure as its step 3. Use the counter to see where you stand. The R&A's version of Rule 5 says a 9-hole score waits to be combined with another 9-hole score, so the "scores" in the table below are best read as 18-hole scores or pairs of 9-hole scores; the USGA's current practice may differ, so check with your association.
Only scores that are acceptable under the Rules of Handicapping count.
Step 5: How your Handicap Index is calculated
Each round becomes a score differential: (113 ÷ Slope Rating) × (Adjusted Gross Score − Course Rating − PCC adjustment), the formula WA Golf gives. The Adjusted Gross Score is your gross score after any adjustment the rules require. The Course Rating and Slope Rating of each set of tees are on the scorecard and in the USGA Course Rating database, and PCC (Playing Conditions Calculation) is a daily adjustment the system applies, which the R&A lists as ranging from −1.0 to +3.0. The calculator turns one round into a differential with an example course.
Your Index is built from your best differentials. Once you have 20 scores, the R&A's Rule 5.2 uses the average of the lowest 8 of your most recent 20. Before that, the USGA's Rule 5.2a table sets how many count and applies a small adjustment for short records.
- No adjustment
- Adjustment applied (shown above the bar)
| Scores in your record | Differentials averaged | Adjustment |
|---|---|---|
| 3 | Lowest 1 | −2.0 |
| 4 | Lowest 1 | −1.0 |
| 5 | Lowest 1 | 0 |
| 6 | Lowest 2 | −1.0 |
| 7 or 8 | Lowest 2 | 0 |
| 9 to 11 | Lowest 3 | 0 |
| 12 to 14 | Lowest 4 | 0 |
| 15 or 16 | Lowest 5 | 0 |
| 17 or 18 | Lowest 6 | 0 |
| 19 | Lowest 7 | 0 |
| 20 | Lowest 8 | 0 |
The R&A page we read says a minimum of 5 scores, while the USGA table starts at 3; we follow the USGA table and the 54-hole figure from the SCGA and NCGA.
Why your Index rises slowly
The system limits how fast an Index can climb after a run of bad rounds. Your Low Index is the lowest Handicap Index you have held recently, over a period the Rules of Handicapping set. The R&A describes a soft cap that restricts any rise above 3.0 strokes over your Low Index to 50%, and a hard cap that stops an increase more than 5.0 strokes above your Low Index. The maximum Handicap Index is 54.0. The calculator shows the effect.
From Handicap Index to the course
Your Handicap Index travels with you; on each course it is converted to a Course Handicap that reflects that course's difficulty. For competitions the R&A defines a Playing Handicap "to ensure that all players can enjoy a fair and equal game", with allowances that depend on the format. The SCGA, for example, lists 85% of the Course Handicap for four-ball stroke play. Your association or club will tell you which applies.
How good is a typical Handicap Index?
The USGA's 2025 Golf Scorecard, as reported by GOLF.com, put the average Index at 14.0 for men and 28.8 for women (a 2020 report put them at 14.2 and 27.5), with 3.68 million golfers keeping an Index. Scratch or better was 2% of men and 0.85% of women. A 3 and a 20 are far apart; see which is better, a 3 or a 20 handicap and what a plus handicap means.
Related guides
- How to find your GHIN number: if you have lost it.
- GHIN cost and free options: what each route costs.
- What a plus handicap means: scoring better than the course rating.
- Which is better, a 3 or a 20 handicap: how far apart they are.
Sources and dates
Index calculation: the USGA Rules of Handicapping and R&A Rule 5 (no edition date on the pages we read). The R&A page we summarize said "a minimum of 5 scores", which conflicts with the USGA table that starts at 3 scores; we follow the USGA table and the 54-hole figure from the SCGA and NCGA. Averages: GOLF.com citing the USGA's 2025 scorecard (22 January 2026) and GOLF.com (9 September 2020). Checked 7 October 2026. Several USGA pages would not load for us, so check the current rules before relying on a detail. We have not published a Course Handicap calculator because we could not read the official formula text on a source page.
