Height gets you into the right area, but wrist-to-floor does most of the work - and lie angle has to move with the length. Here is how to measure yourself properly and what the numbers actually change.
Standard men's and ladies' lengths are built around an average body, and roughly two thirds of golfers land inside that band. The problem is the other third, who buy standard anyway.
Measure both of these, in the golf shoes you play in:
The second one is the useful one. A 185 cm player with long arms often plays standard perfectly happily, while a 178 cm player with short arms is genuinely better off half an inch longer.
Standard men's 5-iron is 38 inches, standard ladies' 37 inches, and it drifts a little between brands and even between models. Use this as your first guess:
| Height in golf shoes | Length vs standard | Note |
|---|---|---|
| Under 160 cm | -1 inch | Ladies' or junior spec is usually the better base |
| 160-170 cm | -0.5 inch (men) | Ladies of this height: standard ladies' length |
| 170-185 cm | Standard | Ladies 160-175 cm: standard ladies' length |
| 185-190 cm | +0.5 inch | Check lie at the same time |
| 190-196 cm | +1 inch | |
| Over 196 cm | +1.5 inch | Custom order territory |
Cross-check it against wrist-to-floor. For men, roughly 86-91 cm (34-36 inches) is the band that lands on standard length, and every 2.5 cm outside it is worth about half an inch. Ladies' charts run the same way against ladies' standard. Where a brand publishes its own chart - Ping's colour codes are the best known - use that one instead of a generic table.
Lie is the angle the shaft makes with the ground when the sole sits flat. The more upright the lie, the closer to your feet the head sits at address - which is why the two specs travel together: a longer club generally wants a more upright lie, a shorter one a flatter lie.
As a rule of thumb, every half inch of extra length is paired with about one degree more upright lie to keep the sole sitting properly.
Getting it wrong shows up on the face, not the flight chart. Too upright and the face points left at impact - pulls and hooks. Too flat and it points right - pushes and weak fades. It matters most in the wedges and short irons, where more loft means the face direction is amplified.
You can check it in five minutes on a lie board: draw a line up the sole with a marker, hit off the board, and see where the scuff sits. Towards the toe means too flat, towards the heel means too upright.
Package sets are built to standard men's or ladies' length, and many are offered in a longer or shorter build as well. If you are outside the band, buy the length option rather than assuming you will adapt.
Juniors get sized by height, never by age, and they outgrow a set in twelve to eighteen months. Re-measure every spring - a club that has become an inch short forces a junior into a hunched posture that is a nuisance to undo later.
Shortening is straightforward: the shaft is trimmed at the butt end and regripped. Be aware it makes the head feel lighter, because you have removed swingweight along with the length. Extending is done with an extension plug, which works well in steel and is more limited in graphite.
Lie can be bent on forged irons without drama. Cast heads normally tolerate a couple of degrees and no more, and graphite shafts cannot be bent at all - on graphite-shafted irons your lie is what you ordered.
Once you know your build, compare specs in irons or in the ready-made package sets.