Course Handicap Calculator
Convert your Handicap Index to a Course Handicap based on the difficulty of the course and tees you are playing.
Course Handicap Calculation
Formula: Handicap Index × (Slope Rating / 113) + (Course Rating − Par)
How It Works
Handicap Index
Your portable measure of playing ability, typically calculated from your best 8 of 20 rounds.
Course Handicap
The number of strokes you receive on a specific set of tees. It is calculated as: HI × (Slope / 113) + (CR − Par).
Handicap Index vs Course Handicap
When you get your official Handicap Index, you might think that is the exact number of strokes you will receive on the golf course. However, your Handicap Index is just a baseline—a portable measure of your demonstrated ability. Because golf courses vary wildly in difficulty, your Handicap Index must be converted into a Course Handicap before you tee off.
The Course Handicap is the specific number of strokes you receive for recreational play at a particular course and from a specific set of tees. While your Handicap Index might have a decimal (e.g., 14.2), your Course Handicap is always a whole number (e.g., 16).
How to Calculate Course Handicap
Under the modern World Handicap System (WHS), the formula to calculate your Course Handicap is standardized worldwide. Our free course handicap calculator handles this instantly, but the underlying math is straightforward:
Course Handicap = Handicap Index × (Slope Rating ÷ 113) + (Course Rating – Par)
- Slope Rating: This measures the relative difficulty of the course for a bogey golfer compared to a scratch golfer. The standard difficulty is 113. If your course has a higher slope, you will receive more strokes.
- Course Rating: This is the expected score for a scratch golfer on those tees.
- Par: The standard par for the course (typically 70, 71, or 72).
Example Calculation
Imagine a golfer with a 15.0 Handicap Index playing a challenging set of tees with a Slope Rating of 135, a Course Rating of 73.2, and a Par of 72.
- Step 1: Divide Slope Rating by 113 (135 ÷ 113 = 1.1947)
- Step 2: Multiply by Handicap Index (15.0 × 1.1947 = 17.92)
- Step 3: Add Course Rating minus Par (73.2 – 72 = 1.2)
- Step 4: Combine the results (17.92 + 1.2 = 19.12)
- Step 5: Round to the nearest whole number (19)
This golfer will receive 19 strokes on this specific course, meaning their 15.0 index translates to a Course Handicap of 19.
Why Course Handicap Varies by Course
Your Course Handicap will change every time you play a course with a different difficulty level. If you play a very easy municipal course with wide fairways and flat greens (e.g., Slope 105), your Course Handicap might be lower than your Handicap Index. If you play a championship course from the back tees (e.g., Slope 145), your Course Handicap will be significantly higher.
This system ensures that competitions are fair, regardless of which tees each player uses. By using a Course Handicap Calculator, you guarantee that you are receiving the exact number of strokes you deserve for the challenge ahead.
Using Your Course Handicap in Play
Once you know your Course Handicap, you use it to determine your net score for a recreational round. If your Course Handicap is 14, you receive one stroke on the 14 hardest holes on the course (indicated by the handicap row on the scorecard).
If you are playing in a formal competition (like a tournament, four-ball, or Stableford event), your Course Handicap must be adjusted one final time to create a Playing Handicap. Competitions apply an allowance percentage (e.g., 95% for individual stroke play) to your Course Handicap to maintain equity across the field. You can easily calculate this final step using our Playing Handicap Calculator.
Course Handicap FAQ
- What is the difference between Handicap Index and Course Handicap?
Your Handicap Index is a baseline decimal number measuring your potential ability. Your Course Handicap is a whole number representing the actual strokes you receive on a specific course today. - Does course handicap change by tee box?
Yes. Every tee box has a different Course Rating and Slope Rating, so your Course Handicap will change depending on which tees you choose. - What is the course handicap formula?
Course Handicap = Handicap Index × (Slope Rating ÷ 113) + (Course Rating – Par). - Do I need a Course Handicap if I have a Handicap Index?
Yes. You cannot simply subtract your Handicap Index from your gross score. You must convert it to a Course Handicap first to ensure fairness based on the course difficulty.
Course Handicap Calculator: Frequently Asked Questions
How is Course Handicap calculated?
Handicap Index × (Slope Rating ÷ 113) + (Course Rating − Par), rounded to the nearest whole number.
What is the difference between Course Handicap and Playing Handicap?
Playing Handicap = Course Handicap × the handicap allowance for the format (e.g. 100% singles match play, 90% four-ball).
Why does my handicap change from different tees?
Each tee set has its own Course Rating and Slope Rating, so the calculation changes.
Can my Course Handicap be higher than my Handicap Index?
Yes — on high-slope tee sets, Course Handicap exceeds the Index.
What does a plus Course Handicap mean?
The player is better than scratch and gives strokes back instead of receiving them.
Do I round my Course Handicap?
Yes — to the nearest whole number (0.5 rounds up).
What allowance applies in singles match play?
100% of the difference between the two players’ Course Handicaps.
What is the allowance for four-ball match play?
90% of Course Handicap for each player.
Is there an adjustment for mixed tees?
Yes — when players use different tees, WHS guidance adds an adjustment based on the par difference.
Where can I look up my Course Handicap at the course?
Use the calculator above, a handicap terminal in the clubhouse, or your golf association’s app.