Sports calculator
Golf Handicap Calculator
Estimate your golf handicap from your recent 18-hole scores. Enter between 3 and 20 rounds with the adjusted gross score, Course Rating and Slope Rating for the tees played. You can also include the Playing Conditions Calculation (PCC) when known.
Enter your recent rounds
Enter rounds from most recent to oldest. At least 3 rounds are required. This calculator is designed for 18-hole scores.
Estimated result
Your golf handicap estimate
Calculation breakdown
| Score differentials used | — |
|---|---|
| Average before adjustment | — |
| Fewer-than-20 adjustment | — |
| Calculated index before cap | — |
| Final estimated index | — |
This is an educational estimate, not an official issued handicap. Official handicapping records can include additional adjustments and safeguards that cannot always be reconstructed from the scores entered here.
How the golf handicap calculation works
A raw golf score is not compared directly with scores from every other course. Instead, each 18-hole round is converted into a score differential that takes account of the difficulty of the tees played.
The calculator then selects the required number of lowest differentials from your scoring record. With 20 scores, the lowest 8 are averaged. With fewer than 20 scores, fewer differentials are used and an adjustment may apply.
How many scores are used?
| 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 |
| 7–8 | Average of lowest 2 | 0 |
| 9–11 | Average of lowest 3 | 0 |
| 12–14 | Average of lowest 4 | 0 |
| 15–16 | Average of lowest 5 | 0 |
| 17–18 | Average of lowest 6 | 0 |
| 19 | Average of lowest 7 | 0 |
| 20 | Average of lowest 8 | 0 |
What do the inputs mean?
Adjusted gross score
Use the score that is acceptable for handicap purposes after any required hole-score adjustments. It may therefore differ from the simple total written on a scorecard.
Course Rating
Course Rating represents the expected score for a scratch golfer under normal conditions from a particular set of tees. Use the rating shown for the tees actually played.
Slope Rating
Slope Rating expresses the relative difficulty of a set of tees for players who are not scratch golfers. A Slope Rating of 113 represents standard relative difficulty in the handicap differential formula.
Playing Conditions Calculation (PCC)
PCC can adjust a score differential when playing conditions on the day were significantly easier or harder than normal. If you do not know the PCC for a round, leave the field at 0.
Soft cap and hard cap
Once a golfer has established a Low Handicap Index, safeguards can limit how quickly the handicap index rises. The soft cap starts when a newly calculated index is more than 3.0 strokes above the Low Handicap Index. The increase above 3.0 is restricted by 50%. The hard cap then limits the increase to no more than 5.0 strokes above the Low Handicap Index.
If you enter a Low Handicap Index and exactly 20 rounds, this calculator applies those cap calculations to the estimate. It does not attempt to recreate exceptional-score reductions or Handicap Committee adjustments.
What about 9-hole scores?
This page deliberately calculates from 18-hole scores. Under the current handicapping rules, a submitted 9-hole score is combined with an expected 9-hole score to create an 18-hole score differential. That expected component depends on information beyond the simple score, rating and slope fields used here, so treating a 9-hole score as half of an 18-hole round would give a misleading result.
Golf handicap calculator limitations
The calculator is intended as a transparent planning and educational tool. An official handicap can differ because an authorized handicapping service may apply exceptional-score reductions, Committee adjustments, expected-score calculations, score corrections and other safeguards contained in the current handicapping rules.
For competition or official handicap purposes, use the handicap issued through your golf club or authorized national handicapping service.
Rules and references
This calculator is based on the World Handicap System Rules of Handicapping, including the calculation of Score Differentials, the number of differentials used to calculate a Handicap Index, and the soft and hard cap procedures.
The Rules of Handicapping are jointly governed by The R&A and the USGA and are administered by authorised golf associations within their respective jurisdictions.
For the official rules and current handicapping requirements, see the R&A Rules of Handicapping — Rule 5 and the USGA Rules of Handicapping — Rule 5.2a .
CalcAtlas provides an independent educational estimate and does not issue an official Handicap Index. For an official handicap, use an authorised handicapping service or your national golf association.