Free golf tools & reference
Calculators, charts and plain-English reference - the useful stuff, free and free of clutter. SmartMiss opens a separate beta app for exploring approach-shot targets.
Calculators
Work out your numbers with the calculators, or explore an approach target with SmartMiss.
Golf Handicap Calculator →
Enter your recent rounds and get your Handicap Index the way the World Handicap System actually works it out.
OpenGolf Slope Rating Calculator →
Work out a course’s slope rating from its course rating and bogey rating.
OpenSmartMiss →
Explore approach-shot targets with your normal shot pattern. See a simple example and try the beta app.
OpenCharts & Reference
The charts and definitions worth bookmarking — built to actually help your game.
Golf Glossary →
Plain-English definitions for 150+ golf terms — searchable, filterable by category, with the ones that actually affect your score flagged.
OpenGolf Ball Compression Chart: What the Numbers Mean →
Compare sourced golf ball compression values by model year and test method. Learn what the numbers mean, then build a shortlist for your own ball fitting.
OpenGolf Wedge Degrees: Loft, Bounce and Gapping Guide →
A practical guide to golf wedge degrees, bounce, and loft gapping. Check your pitching-wedge loft, spot distance gaps, and build a useful wedge setup.
OpenPrintable Golf Club Distance Chart: Build Yours →
Print a blank golf club distance chart or fill in your own carry numbers in yards or meters. Add a wedge matrix and save your personal card as a PDF.
OpenWhat Is Match Play in Golf? A Hole-by-Hole Guide →
Match play scores golf by holes won, not total strokes. Learn how to read 3&2 and dormie, use concessions, choose a format, and play the moment.
OpenGear
Straight comparisons to help you choose, without the affiliate hard-sell.
5 Wood vs 3 Hybrid: Which Should You Carry? →
Compare a 5-wood and 3-hybrid using one golfer's same-loft test, plus a simple way to find the club that fits your bag gap for your next round.
OpenThe Golf Shaft Flex Question Most Charts Cannot Answer →
Learn how to use a golf shaft flex chart as a starting point, what to test during a fitting, and why feel and repeatable results both matter.
Open