Golf Handicap Calculator

Name: Golf Handicap Calculator
Author: Jitendra Kumar

Estimate a WHS Handicap Index from score differentials, then convert it into Course Handicap, Playing Handicap, and target score for a set of tees.

Last Updated: May 2026

Estimated Handicap Index

12.2

Course Handicap

Playing Handicap

Target Score

Score Record

Enter 18-hole adjusted gross scores with the tee rating, slope, and PCC.

Round	Adj. score	Rating	Slope	PCC	Differential	Remove
1					14.8
2					18.9
3					11.9
4					23.2
5					15.2
6					14.4

Valid rounds

6 of 6

Index rule

Average lowest 2, minus 1.0

WHS note

Official indexes can include caps, exceptional-score reductions, and committee adjustments.

Course Handicap

Manual Handicap Index

Used when manual mode is selected or fewer than 3 valid rounds are entered.

Course rating

Slope rating

Par

Handicap allowance

100 for most casual singles stroke play; competitions may use another allowance.

Use manual index

Index source: Calculated score record

Exact course handicap: 13.54

Differentials Used

Round	Score	Rating	Slope	Differential
Round 1	88	71.2	128	14.8
Round 2	91	70.4	123	18.9
Round 3	86	72.1	132	11.9 used
Round 4	94	69.8	118	23.2
Round 5	89	71.5	130	15.2
Round 6	87	70.9	126	14.4 used

Golf Handicap Notice

This calculator is an educational WHS estimate. It does not issue an official Handicap Index and does not apply every safeguard used by GHIN, USGA, The R&A, or other authorized handicap bodies.

Reviewed For Methodology, Labels, And Sources

Every CalculatorWallah calculator is published with visible update labeling, linked source references, and founder-led review of formula clarity on trust-sensitive topics. Use results as planning support, then verify institution-, policy-, or jurisdiction-specific rules where they apply.

Reviewed By

Jitendra Kumar, Founder & Editorial Standards Lead, oversees methodology standards and trust-sensitive publishing decisions.

Review editor profile

Topic Ownership

Sales tax and tax-sensitive estimate tools, Education and GPA planning calculators, Health, protein, and screening-formula pages, Platform-wide publishing standards and methodology

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Methodology & Updates

Page updated May 2026. Trust-critical pages are reviewed when official rates or rules change. Evergreen calculator guides are checked on a recurring quarterly or annual cycle depending on topic volatility.

Sources & methodology About the review process

How to Use the Golf Handicap Calculator

Enter each round as an adjusted gross score, Course Rating, Slope Rating, and PCC value. If you already know your Handicap Index, use the manual index option in the Course Handicap panel.

Use the Course Rating, Slope Rating, and par for the tees being played. Those values are usually printed on the scorecard, tee sheet, club rating table, or official course lookup.

Step 1: Enter recent scores
Add at least three 18-hole adjusted gross scores with rating, slope, and PCC.
Step 2: Review differentials
The calculator marks which low differentials are used in the index estimate.
Step 3: Add tee information
Enter the Course Rating, Slope Rating, par, and any handicap allowance for the round.
Step 4: Read course results
Use Course Handicap for the tees, Playing Handicap for allowance-based formats, and target score as par plus Course Handicap.

How This Golf Handicap Calculator Works

The calculator first converts each valid score into a Score Differential using the WHS formula from the USGA. Slope Rating normalizes the course difficulty against the standard slope of 113, while Course Rating and PCC adjust for tee difficulty and daily playing conditions.

After differentials are calculated, the tool applies the WHS table for records with fewer than 20 scores. With a mature 20-score record, it averages the lowest eight differentials from the most recent 20 entered scores.

Course Handicap is then calculated from the selected Handicap Index, the tee Slope Rating, tee Course Rating, and par. Playing Handicap applies the selected allowance, which may be 100% for casual play or a different value for a competition format.

Golf Handicap Calculation Guide

Core Formulas

Item	Formula or rule	Use
Score Differential	(113 / Slope Rating) x (Adjusted Gross Score - Course Rating - PCC)	Rounded to the nearest tenth for each 18-hole score.
Handicap Index, 20 scores	Average the lowest 8 Score Differentials from the most recent 20 scores	This calculator also applies the official fewer-than-20 score table.
Course Handicap	Handicap Index x (Slope Rating / 113) + (Course Rating - par)	Rounded to the nearest whole number for course use.
Playing Handicap	Course Handicap x handicap allowance	Competition allowances vary by format and committee policy.

WHS Table for Fewer Than 20 Scores

Differentials in record	Differentials used	Adjustment
3	Lowest 1	-2.0
4	Lowest 1	-1.0
5	Lowest 1	0
6	Average lowest 2	-1.0
7-8	Average lowest 2	0
9-11	Average lowest 3	0
12-14	Average lowest 4	0
15-16	Average lowest 5	0
17-18	Average lowest 6	0
19	Average lowest 7	0
20	Average lowest 8	0

What This Estimate Does Not Include

Official handicap services can apply safeguards that are not practical in a simple browser calculator, including exceptional-score reductions, soft and hard caps, low Handicap Index checks, committee adjustments, and authorized scoring-record rules.

For official posting, tournament entry, or club competition decisions, verify the result through your authorized handicap provider such as GHIN, your national golf association, or your club handicap committee.

Keep the research moving with Percentage Calculator, Date Duration Calculator, One Rep Max Calculator, and Target Heart Rate Calculator.

Frequently Asked Questions

It converts each valid 18-hole adjusted gross score into a Score Differential, applies the WHS table for the number of valid differentials entered, and rounds the resulting estimate to one decimal place.

Handicap Index is the portable player ability number. Course Handicap converts that index for a specific course and tee using Course Rating, Slope Rating, and par.

PCC means Playing Conditions Calculation. It adjusts score differentials when daily playing conditions significantly affect scoring. The normal value is 0, with official values generally ranging from -1 to +3.

No. This is an educational estimate. Official handicap services may apply safeguards such as exceptional-score reductions, soft caps, hard caps, low index checks, and committee adjustments.

Under WHS rules, a Handicap Index can be calculated with as few as three 18-hole scores or equivalent score differentials. Fewer than three is not enough for an index estimate.