Golf Handicap Explained: How to Get One, Plus a Calculator

A golf handicap is a number that lets a beginner and a good golfer play each other and both have a chance of winning. You'll hear golfers say they "play off 18". This guide explains what that means, what the numbers tell you about someone's game, and how to get a handicap of your own, which no longer means joining a golf club.

What a handicap is

The R&A puts it simply: the lower your handicap, the better the player you are. Under the World Handicap System, used across the UK, a golfer's handicap is a Handicap Index, written to one decimal place, like 18.4.

It's worked out from your best scores, not your average: with 20 scores on record, it's the average of your best 8. So a handicap describes how a golfer plays on a good day, and many of their rounds will be worse than it suggests.

What the numbers mean

As a rough guide to what a handicap says about someone's golf, on a course of average difficulty:

This follows from how a handicap is calculated (below).

How to get a handicap

You need scores from at least 54 holes: three 18-hole rounds, or six 9-hole rounds. Your first Handicap Index is worked out from them, and from then on it's recalculated whenever you submit a score, no later than the next day (it won't always move). For those first scores, the most you can count on any hole is par + 5, so one disastrous hole doesn't ruin your starting figure.

For a score to count, the Rules of Handicapping say you must:

• play in a format that counts for handicap, over at least the minimum number of holes (9 or 18);
• play with at least one other person, who can mark your card;
• play by the Rules of Golf;
• play on a course with a current Course Rating and Slope Rating, during its normal season.

Where you submit them depends on whether you're in a golf club:

• In a club: your club handles it.
• Not in a club: every UK nation now has a scheme that gives you the same official Handicap Index without joining one, each with its own conditions. Choose where you live:

How to get a handicap where you live

Two questions.

1. Where do you live?

EnglandScotlandWalesNorthern Ireland

2. Are you a member of a golf club?

NoYes

England Golf's iGolf: £47 a year

You don't have to join a club. iGolf gives you an official World Handicap System Handicap Index: submit scores from at least 54 holes (three 18-hole rounds, or six 9-hole rounds) and it's worked out from them.

iGolf on England Golf's site

Buying it as a present? England Golf sells a 12-month iGolf gift voucher for £47: iGolf voucher.

Prices from each body's own website, checked in November 2026.

Not long ago you couldn't get an official handicap without joining a club, and you'll still read that in places. It's no longer true anywhere in the UK.

Give someone a handicap

If you're buying for a golfer who plays but isn't in a club, the way to a handicap can be the present: the voucher pays for the subscription, and they still play and submit the scores. England Golf sells an iGolf gift voucher for £47, and Golf Ireland sells one for Northern Ireland for £60, each for 12 months. The recipient enters the voucher code when they sign up. Golf Ireland's has conditions: they must be over 18, live in Ireland or Northern Ireland, and not have been a member of a Golf Ireland club in the last 3 years.

A handicap is something to aim at. For someone just starting, we'd pair it with a lesson to help them get there: a 30-minute lesson with a PGA pro costs £40, or the beginner coaching package covers the basics from grip to short game, with clubs and balls provided.

How your Handicap Index is worked out

You submit your scores; your club or national body does the calculation. But this is what happens to each score.

1. Each round becomes a Score Differential. That's 113 divided by the course's Slope Rating, times your adjusted score minus the Course Rating (and minus the day's playing conditions adjustment, if there is one), rounded to one decimal place. Course Rating measures how difficult the course is for a scratch golfer (a Handicap Index of 0); Slope Rating measures how difficult it is for everyone else, relative to a scratch golfer. At a Slope of 113, the first part of the sum is exactly 1; the higher the Slope, the smaller it gets. So the same score, relative to the Course Rating, gives a lower (better) differential on a course that's harder for most golfers.
2. Your Handicap Index is the average of your lowest 8 differentials from your last 20. With fewer than 20 scores, the rules set how many to use: the lowest 1 of 3, rising to the lowest 7 of 19. With 3, 4 or 6 scores, a little is taken off.
3. It's adjusted to keep it fair. It can go down as fast as you improve, but it's limited in how fast it can rise. A round whose Score Differential is 7 or more better than your Handicap Index (an exceptional score) brings it down further: 1 is taken off each of your most recent 20 Score Differentials, or 2 if it's 10 or more better, and on days when the weather or the course makes scoring unusually hard or easy, everyone's differentials are adjusted.

Once you have a handicap, the most you can count on any hole is a net double bogey: par, plus 2, plus any shots your handicap gives you on that hole.

An example: your adjusted score is 100 on a course with a Course Rating of 70.0 and a Slope Rating of 125, on a day with no playing conditions adjustment. Your Score Differential is (113 ÷ 125) × (100 − 70.0) = 27.1.

Handicap Index, Course Handicap and Playing Handicap

These three get confused, and they're different numbers:

• Handicap Index: your one number, the same wherever you play.
• Course Handicap: how many shots you get on a particular course from particular tees. It's your Handicap Index × (Slope Rating ÷ 113) + (Course Rating − par), rounded to the nearest whole number. A Handicap Index of 18.4 on a course with a Slope of 125, a Course Rating of 71.2 and a par of 72 gives a Course Handicap of 20.
• Playing Handicap: in a competition, your Course Handicap can be adjusted by a percentage set for the format being played (applied to the unrounded Course Handicap, then rounded), so that golfers of different standards have an equal chance.

Your Course Handicap decides which holes you get shots on. Each hole has a stroke index on the scorecard, and a golfer who gets shots receives them on the holes ranked hardest.

Golf handicap calculator

Enter your total score from each of your last 3 to 20 rounds of 18 holes, and the course's par if you know it. On any hole where you took more than par + 5, count it as par + 5.

#ScorePar (if you know it)

1

2

3

Add a scoreI know the Course Rating and Slope Rating of the courses I played (more accurate)

Enter at least 3 scores.

A rough guide, not an official handicap. Without the course ratings it treats each course as of average difficulty for its par, so it can be a few shots out. Your official figure comes from your club or national golf body.

Buying a golf gift? What their handicap tells you

If you know a golfer's handicap, it narrows down the gift. This is how we'd think about it:

• No handicap yet: a lesson, so they start with good habits, or an iGolf voucher if they're already playing (above).
• Around 20 to 36: a lesson on the part of their game that costs them most, or a round somewhere a bit special.
• Around 10 to 20: a playing lesson, where a pro walks the course with them, or a round at a course they'd love to play.
• Under 10: a round at one of the UK's best courses: see our top 100 golf courses.

Not sure of their handicap? Our handicap estimator asks five questions anyone can answer and gives you a likely range.

Where these facts come from: the Rules of Handicapping (The R&A and USGA), and England Golf, Scottish Golf, Wales Golf and Golf Ireland's own websites, read in November 2026. Prices change, so check them with the body before you buy.