Golf Handicap Calculator
Turn 3 to 20 golf scores into Score Differentials, a Handicap Index, and the Course Handicap and Playing Handicap for your next course, using World Handicap System rules.
Paste scores (optional)
Soft and hard cap (optional)
Net double bogey helper (optional)
Gross 100, adjusted gross score 97. Capped: hole 4 (9 to 8), hole 12 (7 to 6), hole 17 (8 to 7). Uses Course Handicap 17.
Your better rounds play about 14.1 strokes over the Course Rating on a course of standard difficulty (Slope 113).
Scale from 0 (scratch) to the 54.0 maximum. Ticks mark the USGA average Handicap Index for men and women.
Course Handicap at your next course
Strokes you receive from tees rated 72.4 / 131 with par 72. Net double bogey uses this full Course Handicap; competitions use the Playing Handicap.
Your calculation
The same steps the calculator runs, with your numbers.
- Round 9 differential: (113 ÷ 131) × (87 − 72.4 − 0) = 12.594, rounded to 12.6.
- 10 scores: the WHS table uses the lowest 3, adjustment 0.0.
- Lowest 3: 12.6 + 13.1 + 16.6 = 42.3; 42.3 ÷ 3 = 14.1, rounded to 14.1.
- Adjustment: 14.1 + 0.0 = 14.1.
- Course Handicap: 14.1 × (131 ÷ 113) + (72.4 − 72) = 16.746, rounded to 17.
- Playing Handicap: 16.746 × 95% = 15.909, rounded to 16.
Score record
Rounds in the order entered, oldest first. Highlighted rows count toward the index.
| Round | Score | Rating | Slope | PCC | Differential | Counts |
|---|---|---|---|---|---|---|
| 1 | 92 | 71.2 | 128 | 0 | 18.4 | — |
| 2 | 88 | 69.8 | 121 | 0 | 17.0 | — |
| 3 | 95 | 72.4 | 131 | +1 | 18.6 | — |
| 4 | 86 | 71.2 | 128 | 0 | 13.1 | Counted |
| 5 | 90 | 69.8 | 121 | 0 | 18.9 | — |
| 6 | 97 | 72.4 | 131 | 0 | 21.2 | — |
| 7 | 89 | 71.2 | 128 | −1 | 16.6 | Counted |
| 8 | 93 | 69.8 | 121 | 0 | 21.7 | — |
| 9 | 87 | 72.4 | 131 | 0 | 12.6 | Counted |
| 10 | 91 | 71.2 | 128 | 0 | 17.5 | — |
Differentials by round
Bar height runs from 0 to 25.0 strokes, oldest round on the left.
An unofficial estimate. Only a golf club or association authorized under the World Handicap System can issue an official Handicap Index, and exceptional score reductions and committee reviews are not included here.
How the Golf Handicap Calculator Works
This golf handicap calculator applies the 2024 Rules of Handicapping, the rule book of the World Handicap System (WHS) governed by the USGA and The R&A. You enter up to 20 adjusted gross scores, oldest first, with the Course Rating, Slope Rating and playing conditions calculation (PCC) of each round. The calculator turns each round into a Score Differential, picks the lowest ones the WHS table allows and averages them into a Handicap Index. It then converts that index into a Course Handicap and a Playing Handicap for the next course you plan to play.
A Score Differential measures one round against the difficulty of the tees you played. The number 113 is the Slope Rating of a course of standard difficulty, so on a Slope 113 course the differential is simply your score minus the Course Rating.
Rule 5.1c rounds a negative differential upward toward zero, so −1.55 becomes −1.5 while −1.56 becomes −1.6. The calculator stores every differential as a whole number of tenths, so no floating point error can push a value across a rounding boundary.
Handicap Index Formula: Best 8 of 20 and Fewer Scores
With 20 or more scores on record, the Handicap Index is the average of the lowest 8 of the most recent 20 Score Differentials, rounded to the nearest tenth. Newer golfers follow Rule 5.2a, which averages fewer differentials and subtracts an adjustment when the record holds 3, 4 or 6 scores. The table is the exact data the calculator uses.
| Scores in record | Differentials used | Adjustment |
|---|---|---|
| 3 | Lowest 1 | −2.0 |
| 4 | Lowest 1 | −1.0 |
| 5 | Lowest 1 | 0 |
| 6 | Average of lowest 2 | −1.0 |
| 7 or 8 | Average of lowest 2 | 0 |
| 9 to 11 | Average of lowest 3 | 0 |
| 12 to 14 | Average of lowest 4 | 0 |
| 15 or 16 | Average of lowest 5 | 0 |
| 17 or 18 | Average of lowest 6 | 0 |
| 19 | Average of lowest 7 | 0 |
| 20 | Average of lowest 8 | 0 |
The adjustment reflects that a short record says less about ability. A record of 6 scores averages the lowest 2 and subtracts 1.0, and the seventh score removes that adjustment. That is why the Beginner example shows "Any score" as the next round target: a sixth round brings in the −1.0 adjustment, so the index falls whatever the score.
Course Rating, Slope Rating and Course Handicap
The USGA defines Course Rating as the expected score of a scratch player, a golfer with a Handicap Index of 0.0, under normal course and weather conditions. A Course Rating of 71.2 means a scratch player can expect to shoot about 71 when playing well. The Bogey Rating does the same for a bogey player, with a Handicap Index of about 20.0 for men and 24.0 for women.
Slope Rating compares the two. The larger the gap between the Bogey Rating and the Course Rating, the higher the Slope Rating and the more extra strokes a higher handicap golfer needs. Slope Ratings run from 55 to 155, and 113 marks a course of standard difficulty.
The USGA gives a clear illustration. On Course A, rated 71.0 with Slope 116 and par 71, an 18.0 index receives 18 strokes. On Course B, also rated 71.0 but with Slope 132, the same golfer receives 21, while a 1.0 index stays at 1 on both courses.
| Format of play | Recommended allowance |
|---|---|
| Individual stroke play | 95% |
| Four ball stroke play | 85% |
| Individual match play | 100% |
| Four ball match play | 90% |
| Best 1 of 4 stroke play | 75% |
Rule 6.2 applies the allowance to the unrounded Course Handicap to avoid double rounding. Appendix C lets committees change these allowances for field size and make up, so check the terms of your competition.
How to Calculate Your Golf Handicap Manually
- Adjust each hole. Cap every hole at net double bogey and add the holes to get the adjusted gross score.
- Find each Score Differential. Use the Course Rating and Slope Rating of the tees you played and the PCC for that day, then round to one decimal.
- Count your scores. Use the 20 most recent, or all of them if you have fewer, and find your row in the Rule 5.2a table.
- Average the lowest. Add the lowest N differentials, divide by N and round to the nearest tenth.
- Apply the adjustment and any cap. Subtract the table adjustment, then check the soft and hard caps if you have a Low Handicap Index.
- Convert for the course. Multiply by Slope Rating ÷ 113, add Course Rating minus par and round to get the Course Handicap.
In the default record, Round 7 was an 89 at 71.2 / 128 with PCC −1: (113 ÷ 128) × (89 − 71.2 + 1) = 0.8828 × 18.8 = 16.597, or 16.6. It joins Round 9 (12.6) and Round 4 (13.1) as the lowest 3 of 10, which average 14.1.
Net Double Bogey and Adjusted Gross Score
The WHS stops one bad hole from distorting your record. Once you hold a Handicap Index, the most you can count on a hole is net double bogey: par + 2 + any handicap strokes you receive on that hole. Strokes come from your full Course Handicap, rounded to a whole number, and the stroke index printed on the scorecard.
Before you have a Handicap Index, Rule 3.1a limits every hole to par + 5. A Course Handicap above 54 with 4 or more strokes on a hole also uses par + 5. The helper in the calculator applies these rules: with the sample card and a Course Handicap of 17, a gross 100 becomes an adjusted gross score of 97 because holes 4, 12 and 17 are capped.
Playing Conditions Calculation (PCC)
Course Ratings assume normal conditions. The PCC is a daily statistical check that compares the scores posted at a course with expected scoring patterns. It needs at least eight acceptable scores from players with a Handicap Index of 36.0 or below, and the result can only be −1.0, 0.0, +1.0, +2.0 or +3.0.
A positive PCC means the course played harder, so it is subtracted from your score: a 95 on tees rated 72.4 / 131 gives 19.5 with PCC 0 but 18.6 with PCC +1. Your scoring record shows the PCC for each round; enter 0 when none was applied.
Soft Cap, Hard Cap and Exceptional Scores
Rule 5.8 limits how fast a Handicap Index can rise. Your Low Handicap Index is the lowest index you held in the 365 days before your most recent round, and it exists only once you have 20 scores. If the new index is more than 3.0 above it, the soft cap keeps only 50 percent of the increase beyond 3.0, and the hard cap stops the index at 5.0 above the Low Handicap Index. There is no limit on how fast an index can fall.
Rule 5.9 lowers an index after an exceptional score. A Score Differential 7.0 to 9.9 strokes below the index in effect when you played takes 1.0 off, and 10.0 or more takes 2.0 off. For a 14.1 index, a 6.5 differential (7.6 better) triggers −1.0 and a 3.9 differential (10.2 better) triggers −2.0. The calculator does not apply this reduction, because it depends on the index you held on the day of each round.
9 Hole Scores After the 2024 Revision
Since January 2024 a 9 hole score counts right away. Its differential is (113 ÷ 9 hole Slope Rating) × (9 hole adjusted gross score − 9 hole Course Rating − 0.5 × PCC). It is combined with an expected differential for the 9 holes not played, based on your Handicap Index, and the combined 18 hole differential is then rounded.
The expected score comes from the official system, so this calculator handles 18 hole scores only. A 45 on a nine rated 35.8 / 127 with PCC +1 gives (113 ÷ 127) × 8.7 = 7.741 before the expected half is added.
What Is a Good Golf Handicap?
The USGA reported in September 2024 that the average Handicap Index was 14.2 for men and 28.7 for women, and the ticks on the result bar mark both. A lower index is better. A plus index, such as +1.2, belongs to a golfer who beats the Course Rating on good days, and 54.0 is the maximum.
How to Use the Calculator
- Scores. Enter each adjusted gross score, oldest first. Rows without a score are ignored.
- Rating and Slope. Copy them from the scorecard for the tees you played.
- PCC. Pick the value in your scoring record, usually 0.
- Next course. Enter its Course Rating, Slope Rating, par and the format allowance.
- Low Handicap Index. Optional; caps apply only with 20 scores.
- Paste. Load rows from a spreadsheet, one round per line.
Common Mistakes
- Posting gross scores. A 9 on a hole where net double bogey is 7 inflates the differential.
- Mixing up tees. A rating from the white tees does not fit a round from the blue tees.
- Using par instead of Course Rating. The formula uses the rating, which rarely equals par.
- Rounding before the allowance. Rule 6.2 applies the percentage to the unrounded Course Handicap.
- Reading the index as an average. It reflects your better rounds.
Frequently Asked Questions
How do you calculate a golf handicap?
Under the World Handicap System you first turn each 18 hole score into a Score Differential: (113 ÷ Slope Rating) × (adjusted gross score − Course Rating − PCC adjustment), rounded to the nearest tenth. Your Handicap Index is the average of the lowest 8 of your most recent 20 differentials, rounded to the nearest tenth. With fewer than 20 scores a smaller number is averaged, and a record of 3, 4 or 6 scores also takes an adjustment of −2.0, −1.0 or −1.0. Example: if 12.6, 13.1 and 16.6 are the lowest 3 of 10 differentials, the index is 42.3 ÷ 3 = 14.1.
How many rounds do you need to get a golf handicap?
The Rules of Handicapping let each national association set the minimum number of holes for an initial Handicap Index, up to a maximum of 54 holes, such as three 18 hole rounds. The calculation table in Rule 5.2a starts at 3 Score Differentials. With 3 scores the index is the lowest differential minus 2.0, so differentials of 25.2, 22.4 and 25.6 give 22.4 − 2.0 = 20.4. The table counts more of your scores as the record grows, and from 20 scores onward it averages the lowest 8 of the most recent 20.
What is a good golf handicap?
A Handicap Index of 0.0 is scratch, and the USGA describes a bogey player as having a Handicap Index of about 20.0 for men and 24.0 for women. In a September 2024 article the USGA put the average Handicap Index at 14.2 for men and 28.7 for women, so an index below those figures is better than average among golfers who keep a handicap. The most useful measure is your own trend: a falling index across 20 scores shows that your better rounds are improving.
What is the difference between Handicap Index and Course Handicap?
A Handicap Index measures your ability on a course of standard difficulty and travels with you to any course. A Course Handicap converts it into strokes for one set of tees: Handicap Index × (Slope Rating ÷ 113) + (Course Rating − par), rounded to the nearest whole number. A 14.1 index at Course Rating 72.4, Slope 131 and par 72 gives 14.1 × 131 ÷ 113 + 0.4 = 16.746, or 17 strokes. A Playing Handicap then applies the format allowance, such as 95 percent for individual stroke play, to the unrounded Course Handicap: 16.746 × 0.95 = 15.909, or 16.
What is net double bogey in golf handicapping?
Net double bogey is the highest score you can count on any hole for handicap purposes once you have a Handicap Index. It equals par + 2 + any handicap strokes you receive on that hole, which come from your Course Handicap and the stroke index of the hole. With a Course Handicap of 17 you receive one stroke on the holes with stroke index 1 to 17, so a par 5 with stroke index 1 is capped at 8. Before you have a Handicap Index, the limit is par + 5 on every hole. The sum of your adjusted hole scores is your adjusted gross score.
Is this golf handicap calculator official?
No. It gives an unofficial estimate using the published World Handicap System formulas. Only a golf club affiliated with an authorized association, or the association itself, can issue an official Handicap Index, because the official figure also depends on score certification, the daily playing conditions calculation, exceptional score reductions, your Low Handicap Index and reviews by a Handicap Committee. Use it to check your numbers and plan target scores, and post scores through your club or association for an official record.
Sources & References
- USGA and The R&A. Rules of Handicapping, Effective 2024 (Rules 1.4, 3.1, 5.1 to 5.9, 6.1, 6.2 and Appendix C). usga.org
- USGA. Rules of Handicapping, 5.2a For Fewer Than 20 Scores. usga.org
- The R&A. Rules of Handicapping, Rule 5: Handicap Index Calculation. randa.org
- The R&A. Rules of Handicapping, Rule 6: Course Handicap and Playing Handicap Calculation. randa.org
- Mazurick, T. World Handicap System: 3 Key Changes for 2024, USGA, January 16, 2024. usga.org
- Benjamin, T. Course Rating vs. Slope Rating, USGA, October 23, 2024. usga.org
- USGA. National Course Rating Database (definitions of scratch player, bogey player and the 55 to 155 Slope Rating range). ncrdb.usga.org
- Pennington, B. Are You an Average Golfer?, USGA, September 16, 2024 (average Handicap Index of 14.2 for men and 28.7 for women). usga.org
Results are unofficial estimates. An official Handicap Index is issued only through a golf club or association authorized under the World Handicap System. Every number on this page was recomputed with the same formulas the calculator uses. Rules reviewed: 2026, against the Rules of Handicapping effective 2024.