Golf Club Length Calculator is a free fitting-reference site: it turns two measurements — your height and your wrist-to-floor — into a recommended length for every club in the bag, using the published standards club builders work from.
Club length is the most basic fitting decision a golfer makes, and the one most often left to whatever happened to be in the box. This site exists to put a number on it before you buy, build or cut: enter your height and wrist-to-floor and it applies the published fitting chart to the published standard lengths, club by club, and shows its working.
Alongside the calculators you will find the full length chart with its sources named, a guide to measuring clubs the official USGA way, and dedicated tools for drivers, irons, shafts, putters, women, juniors and the length-and-lie relationship. Everything is free, works in the browser, and asks for no account and no email address.
The site is researched, built and maintained by Ian Welkins. Questions, corrections and fitting experiences worth adding to a page are welcome at ianwelkins@gmail.com, or through the report-an-error page linked in the footer of every page.
Every length on this site traces to a published source named on the page that uses it — the clubmaker standards (GolfWorks, Hireko), the fitting chart and its two reproductions, the putter guides, the TaylorMade manual — and where two sources give different figures we print both rather than averaging them into a number nobody published. Standard lengths come from the two clubmaker references the trade works from — The GolfWorks' standard-lengths specification and Hireko Golf's standard length chart — and the two agree exactly on every men's steel iron, which is the kind of cross-check we require before a number is published. The measuring methods come from the USGA and R&A Equipment Rules. The fitting chart is a named, widely reproduced published chart, reproduced as published.
Where sources genuinely disagree, the site shows the disagreement instead of picking a winner in secret. The driver is the standing example: the clubmaker standard is 45 inches, while most current stock drivers ship at 45½ to 45¾ inches — the chart page presents both figures and says which is which. The full standards for what gets published here are set out in the editorial policy.
A calculator is a starting point, not a fitting. It cannot watch your posture, your strike pattern or your ball flight, and no honest tool would claim otherwise. Use the numbers here to know what you are looking for — then, before a shaft is cut or a set is ordered, have a club builder or fitter confirm the length on the range. If the two disagree, the builder who watched you swing wins.