Golf Chipping: Rule of 12

Rule of 12 takes the guesswork out of chipping. The classic "Rule of 12" used club numbers as a stand-in for loft — but modern irons run 3 to 5 degrees stronger than older ones, so a 46° pitching wedge actually plays like an old 9 iron. This app fixes that: enter your real club lofts once, and it tells you exactly which club to chip with for any landing spot, every time. HOW IT WORKS Tell it how far you want to land the ball, and how far that landing spot is from the flag. The app calculates the roll ratio you need and matches it to the closest club in your bag — accounting for slope and green speed along the way. WORKS BOTH WAYS Already have a club in your hand? Switch modes and it'll tell you exactly where to land it for a given total distance instead. YOUR BAG, YOUR CLUBS Rename any club, adjust its short code, and dial in its real loft. The more accurate your lofts, the more accurate every recommendation. TRACK YOUR RESULTS Log whether a chip came up short, landed good, or ran long — right from the result screen, no extra taps. Once you've logged a few shots with the same club, the app starts surfacing simple trends, like whether a club tends to run long or short for you specifically. SHARE YOUR BAG Calibrated your lofts and want a buddy to skip the guesswork? Share your bag setup as a short code they can paste right in. BUILT FOR THE COURSE - Yards, feet, or meters — pick whichever you think in. - Dark mode, light mode, and a high-contrast option for bright sun. - Works completely offline. No account, no sign-in, no setup. PRIVATE BY DESIGN Rule of 12 doesn't collect any data, doesn't require an account, and doesn't make network requests. Everything — your bag, your preferences, your shot history — stays on your phone. Built by a golfer under Open Meadow Games. Free to use — if it helps your short game, consider buying us a coffee. Feedback and bug reports always welcome.