Quick start
- Use Score differential mode when you have adjusted gross score, course rating, slope rating, and PCC.
- Use Course handicap mode when you have a Handicap Index, slope rating, course rating, and par.
- Enter the handicap allowance when your casual format uses one.
Best uses
These are the situations this tool is meant for. If your task is close to one of these, the examples and notes below can help you choose the right inputs.
- Estimate a round score differential from adjusted score, rating, slope, and PCC.
- Estimate course handicap from Handicap Index and tee ratings.
- Apply a playing handicap allowance for casual formats.
- Learn why course rating and slope change handicap math.
What this calculator is solving
The Golf Handicap Calculator gives two useful estimates: a score differential for one adjusted round and a course handicap for playing a specific set of tees.
You do not need to memorize the formula first. Start by matching each input label on the calculator to the number, date, unit, or setting you actually have.
The formula in plain language
In plain language: Score differential uses (113 / slope rating) x (adjusted gross score - course rating - PCC). Course handicap uses Handicap Index x (slope / 113) + (course rating - par). The examples on the page are there so you can compare your inputs with a filled-out calculation before copying the answer.
If that sounds abstract, use the example cards on the calculator page. They show a complete set of inputs and the kind of answer you should expect.
How to read the answer
Read the headline result first. Then look at the smaller supporting lines because they explain the parts behind the answer, such as totals, units, ranges, or formula steps.
- Score differential is rounded to one decimal place.
- Course handicap is rounded to a whole number.
- Playing handicap applies the allowance to the rounded course handicap.
Common mistakes to avoid
If the answer looks strange, the most likely cause is a small input mismatch: the wrong unit, date, weight, scale, mode, or policy assumption.
- Do not call the result an official Handicap Index.
- Do not ignore course rating, slope rating, and par from the exact tees played.
- Remember official WHS records can include caps, exceptional-score reductions, and committee adjustments.
Research and references
These references shaped the calculator assumptions, unit choices, or safety notes.
Examples from the calculator
About 13.1
About 15
About 13
FAQ in plain language
When should I use the Golf Handicap Calculator?
Use it when your task matches one of these common needs: Estimate a round score differential from adjusted score, rating, slope, and PCC. Estimate course handicap from Handicap Index and tee ratings. It works best when you already know the values, dates, units, or settings the page asks for.
What is the Golf Handicap Calculator doing with my inputs?
In plain language: Score differential uses (113 / slope rating) x (adjusted gross score - course rating - PCC). Course handicap uses Handicap Index x (slope / 113) + (course rating - par). The examples on the page are there so you can compare your inputs with a filled-out calculation before copying the answer.
What should I double-check before trusting the answer?
This is not an official Handicap Index. Official records may include caps, exceptional-score reductions, 9-hole rules, and committee adjustments. Also check that you used the right unit, date, scale, or mode because small input changes can change the result.
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Privacy and copying results
Recent answers stay visible only while you work in the current browser tab. They are not sent to a server.
Use Copy answer when you want to paste the expression and result into notes, homework, a message, or another document. Check the units and assumptions before copying.