# Golf Handicap Differential Calculator

URL: https://speedycalculator.com/calculators/sports/golf-handicap/
Last updated: 2026-10-25

> The golf handicap calculator works out a score differential for a round from your adjusted gross score, the course rating and slope rating, as used in the World Handicap System.

## Inputs

- Adjusted gross score
- Course rating
- Slope rating
- Playing conditions adjustment

## Results

- Score differential

## Formula

```
Differential = (113 ÷ slope) × (adjusted score − course rating − PCC)
```

## Explanation

Your Handicap Index is the average of your best 8 of your last 20 differentials.

### How to use the Golf Handicap Differential Calculator

- **Adjusted gross score**
- **Course rating**
- **Slope rating**
- **Playing conditions adjustment**

Results update as you type, and every field accepts the units shown in its menu.

### How it works

Subtract the course rating (and any playing conditions adjustment) from your score and scale by 113 ÷ slope.

### Inputs explained

FieldWhat to enterAdjusted gross scoreA numberCourse ratingA numberSlope ratingA numberPlaying conditions adjustmentA number

### Example values

How the main result changes when **Adjusted gross score** changes and everything else stays at the example values above:

Adjusted gross scoreScore differential44-2466-4.68814.811034.313253.717692.5

## Worked example

Inputs — Adjusted gross score: 88; Course rating: 71.2; Slope rating: 128; Playing conditions adjustment: 0.

Results — **Score differential = 14.8**.

## FAQ

**What is an adjusted gross score?**
Your score after limiting each hole to net double bogey.

**What is a standard slope?**
113 is the slope of a course of average difficulty.

**What formula does the Golf Handicap Differential Calculator use?**
Differential = (113 ÷ slope) × (adjusted score − course rating − PCC).


## Sources

- [World Handicap System – Rules of Handicapping](https://www.whs.com/)