Free golf tools & reference
Calculators, charts and plain-English reference — the useful stuff, free and free of clutter. Everything here runs in your browser; nothing is stored and nothing needs a sign-up.
Calculators
Punch in your numbers, get an answer. No sign-up, nothing stored.
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.
OpenSmart Miss
My little app for turning your misses into a smarter aim point. Coming to the tools shelf soon.
Coming soonCharts & 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 →
What golf ball compression numbers actually mean, a sourced compression chart of seven current balls, and why the number alone cannot pick your ball.
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 →
Build a printable golf club distance chart in yards or meters. Record stock carry numbers and shorter-shot cues on one personal course card.
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.
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