Introduction
This golf handicap calculator helps you find your WHS Handicap Index and Course Handicap in seconds. Just enter your round scores, course ratings, and slope ratings, and the tool does the math for you.
The calculator has two parts. Module 1 takes your recent golf scores and calculates your Handicap Index using the World Handicap System formula. You can enter up to 20 rounds, and you need at least 54 holes of data to get a result. Module 2 converts any Handicap Index into a Course Handicap for a specific set of tees. This tells you how many strokes you get at that course.
Each calculation shows a step-by-step breakdown so you can see exactly how the numbers work. You can also look up real course ratings and slope ratings from a built-in course database, or type them in by hand. Whether you play 9-hole or 18-hole rounds, this calculator handles both.
How to Use Our Handicap Calculator
This golf handicap calculator has two tools. The first takes your recent round scores and finds your Handicap Index. The second converts a Handicap Index into a Course Handicap for any set of tees. Enter your round details below and the calculator does the math for you.
Module 1 — Handicap Index Calculator
You need at least 54 holes of scored golf to get a result. That means three 18-hole rounds or six 9-hole rounds. You can enter up to 20 rounds.
Course: Click "Course Lookup" to search for a course by country, region, city, and club name. The tool will fill in the rating and slope for you. You can also type the course rating and slope in by hand.
Holes Played: Pick Front 9, Back 9, or 18 Holes. This tells the calculator how many holes your score covers.
Gross Score: Type your total score for the round. Use your actual strokes with no adjustments.
Course Rating: Enter the course rating for the tees you played. This is a number like 71.7. You can find it on your scorecard or through the course lookup.
Slope Rating: Enter the slope rating for the tees you played. This is a whole number between 55 and 155. You can find it on your scorecard or through the course lookup.
PCC: Enter the Playing Conditions Calculation value if one applies. It ranges from −1 to 3. Leave it blank if there is no adjustment or you are unsure.
Click Calculate Handicap Index to see your result, a step-by-step breakdown, and a chart of your score differentials.
Module 2 — Course Handicap Converter
Use this tool when you already know your Handicap Index and want to find out how many strokes you get on a specific course. You can also use our standalone Course Handicap Calculator for a dedicated conversion tool.
Handicap Index: Enter your current WHS Handicap Index, such as 14.2.
Course Rating: Enter the course rating for the tees you plan to play.
Slope Rating: Enter the slope rating for those tees. It must be a whole number between 55 and 155.
Course Par: Enter the par for the course, such as 72.
Click Calculate Course Handicap to see your Course Handicap along with the full formula and step-by-step solution.
What Is a Golf Handicap?
A golf handicap is a number that shows how well you play golf. It levels the playing field so golfers of all skill levels can compete against each other fairly. A lower handicap means you are a better player. A higher handicap means you are still learning or do not score as low.
How Does a Golf Handicap Work?
The World Handicap System (WHS) is the official way to calculate a golf handicap. It looks at your recent scores and compares them to how hard the course is. Two numbers describe every course: the Course Rating, which tells you the expected score for a scratch (very skilled) golfer, and the Slope Rating, which tells you how much harder the course is for average golfers compared to scratch golfers. Slope ranges from 55 to 155, with 113 being the standard middle value.
What Is a Handicap Index?
Your Handicap Index is a portable number that travels with you to any course. It is built from your best Score Differentials. A Score Differential measures how you played relative to the difficulty of the course that day. The formula is:
Score Differential = (113 ÷ Slope Rating) × (Gross Score − Course Rating − PCC)
PCC stands for Playing Conditions Calculation. It is a small adjustment that accounts for weather or unusual course conditions on the day you played. It can range from −1 to +3.
You need at least 54 holes of recorded scores to get a Handicap Index. Once you have enough rounds, the system picks your best differentials, averages them, and may apply a small adjustment based on how many rounds you have entered.
What Is a Course Handicap?
A Course Handicap tells you how many strokes you receive on a specific course from a specific set of tees. It is calculated from your Handicap Index using this formula:
Course Handicap = (Handicap Index × Slope Rating ÷ 113) + (Course Rating − Par)
The result is rounded to the nearest whole number. Because every course has a different rating and slope, your Course Handicap changes each time you play a different course or different tees.
Why Does Your Handicap Matter?
Your handicap lets you compete with anyone, no matter their skill level. In a tournament or a casual round with friends, handicap strokes make the game fair. It also helps you track your progress over time. As you improve, your handicap goes down. Beyond golf, many sports use similar rating systems to measure performance — tools like our Bowling Score Calculator and Batting Average Calculator help athletes in other sports track their numbers with the same precision.