Golf Handicap Calculator · Practical guide
What Is My Handicap If I Shoot 90?
Shooting 90 on an average course works out to a handicap of about 18 — here is the math.
At a glance
The Short Answer
If you consistently shoot around 90, your handicap index is roughly 15 to 18, depending on course difficulty. On a course with a rating of 72 and the average slope of 113, a 90 produces a differential of (90 − 72) × 113 ÷ 113 = 18.0. Enter your actual rounds above for your exact index.
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Enter your own values, then compare the result with the examples below.
Results
How Slope Changes the Answer
The same 90 means different things on different courses. Assuming a course rating of 72:
| Slope Rating | Differential for a 90 |
|---|---|
| 113 (average) | 18.0 |
| 120 | 16.9 |
| 130 (hard) | 15.6 |
A 90 on a tough, high-slope course is a better round than a 90 on an easy one, and the differential reflects that.
Why Your Index Is Usually Lower Than You Expect
Your handicap is not your average score minus par — it is based on your best differentials. If you average 90 but sometimes shoot 85, those good rounds pull your index down. In the five-round example of 85, 88, 90, 92, 95 on a 72.1/130 course, the index comes out to 11.2, because only the single best differential counts with that few rounds.
What a 90-Shooter's Handicap Means
A handicap around 15-18 puts you near the middle of recreational golfers — the average USGA handicap index is around 14. It means you would typically shoot about 87-91 on a course of average difficulty, since golfers play to their handicap only about a quarter of the time.
Frequently Asked Questions
Is shooting 90 good for a beginner?
Breaking 90 is a major milestone. Most casual golfers never consistently break 100, so shooting 90 puts you well ahead of the average weekend player.
What score does a 10 handicap shoot?
A 10-handicap golfer typically shoots in the low to mid 80s on an average course — roughly 82-86 most rounds, since your index reflects your best golf, not your average.
Does my handicap change every round?
Yes. Each new round replaces the oldest in your record, so your index updates continuously. A great round can lower it; the effect of a bad round is muted because only the best differentials count.
What is the maximum golf handicap?
Under the World Handicap System, the maximum handicap index is 54.0 for both men and women, making the game accessible to golfers of every level.