Iron Length Calculator

Standard iron lengths, club by club

A standard men's iron set in steel runs from a 39-inch 3-iron down to a 35.25-inch lob wedge, stepping by half an inch per club through the numbered irons — the wedges then compress the staircase: the pitching and gap wedges share 35.5 inches, the sand and lob wedges share 35.25, with a quarter-inch step between the pairs. That half-inch step through the irons is the backbone of the set: it spaces the yardage gaps evenly, so a correctly built set only needs one decision — where the whole staircase starts. The 7-iron, at 37 inches in steel, is the reference club most fitters build around.

Two variations sit on top of those numbers. Graphite-shafted irons are built half an inch longer than steel in both the GolfWorks and Hireko charts — a 37.5-inch graphite 7-iron is the same standard fit as a 37-inch steel one. And women's standards are one inch shorter than men's in every row, in both materials. Everything in the table below is a finished playing length, measured the official way, and it is the same data the golf club length calculator on the homepage uses for its whole-set result.

One measurement adjusts the whole set

Iron fitting uses the same two inputs as every other club: your height and your wrist-to-floor measurement, taken in golf shoes from wrist crease to floor with your arm hanging naturally. The published chart reads the wrist-to-floor number as an adjustment against standard: 34 to under 37 inches is standard; 37 to under 38½ adds a quarter inch; 38½ to under 40 adds a half; 40 to under 41 adds a full inch; and the scale continues to plus two at the extremes, mirroring down to minus two for the shortest measurements.

You then apply that single adjustment to every iron in the table — your 5-iron, 7-iron and wedges all move together, and the half-inch steps between them are preserved. That is what separates a fitted set from a random set: not any one club's length, but the consistency of the staircase. When your height and wrist-to-floor fall in different rows of the chart, trust the wrist-to-floor row. Height is a proxy; wrist-to-floor measures the thing itself — how far your hands actually hang from the ground at address.

A set, fitted on paper

Consider a golfer with a wrist-to-floor of 39 inches. Her band — 38½ to under 40 — calls for clubs half an inch over standard. If she plays steel shafts, her 7-iron is built at 37.5 inches instead of 37, her 5-iron at 38.5 instead of 38, and her pitching wedge at 36 instead of 35.5. If she plays graphite, every one of those numbers rises by a further half inch — not because her fit changed, but because graphite standards are published half an inch longer than steel for the same swing.

The same staircase logic is why the calculator asks about your whole build rather than one iron. A golfer who buys a single replacement 7-iron at stock length while the rest of the set is built +0.5 has put a flat spot in the staircase: the yardage gap on one side of that club widens and on the other side narrows. Replacing one iron means ordering it at the set's adjustment, which the seller can do — lengths are a standard build option, not a special favor.

Why length changes how the club sits

Length does not act alone — it changes the lie angle the club effectively plays at. Lengthen an iron and, at the same address position, the toe of the club wants to sit up; shorten it and the toe drops. This is why a length change of half an inch or more is normally paired with a lie check: the two settings together decide whether the sole meets the turf flat at impact. A club that is too long and too upright pulls shots left for a right-hander; too short and too flat pushes them right — and both faults are often blamed on the swing when they are stamped into the build.

The practical route is the one this site follows: settle length first, from measurement, because it is the variable your body dictates. Then have lie verified dynamically — a lie board or impact tape on the sole shows exactly how the club is arriving. If you are changing length on a set you already own, the fuller treatment of how the two settings interact is on the length and lie calculator page. Forged irons can be bent a couple of degrees either way; most cast irons can too, within limits a builder will know.

Checking a second-hand set before you buy

Used irons are the great bargain of golf equipment, and length is the spec most often misdescribed in listings. A set sold as 'standard' may have been built +0.5 for its original owner, cut down by a second owner, or assembled from two sets. Before buying, ask for the 7-iron's measured length — or measure the set yourself at pickup with the club soled at address and the tape run on the 60-degree reference to the top of the grip — never along the shaft itself, which overstates the length (the measure guide's first error).

Then check the staircase: each numbered iron should step by half an inch from its neighbor — the wedges are the exception, built flat in pairs (PW with GW, SW with LW). A set where the 6-iron and 7-iron measure the same has been altered, and the gap between them will show it on the course. Minor deviations — a quarter inch across the whole set — are within normal build tolerance and nothing to walk away from. A set that is uniformly longer or shorter than your fitting is not a lost cause either: irons can be extended or trimmed under the grip, though changes beyond about an inch start to disturb swingweight enough that a builder should rebalance the set.

• Measure the 7-iron first — it is the set's reference club.
• Check the steps: ½ inch between numbered irons. The wedge steps are flat by design (PW = GW, then ¼ inch to SW = LW) — a flat spot anywhere else means an altered club.
• A uniform offset from your fit is fixable; a scrambled staircase is a warning.

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