How to use
Measure in golf shoes, with arms relaxed.
Enter your measurements, choose units and press Calculate. Use total inches when measuring in feet and inches: 5 ft 10 in is 70 in. A decimal point or comma is accepted. The pale example can be calculated immediately. Focus hides an example; leaving it empty restores the example. Your entered values remain until edited or cleared.
Editing a measurement invalidates the previous result. Calculate again before using Copy result. Copy includes the confirmed measurements, result and reference-only notice. Clear removes inputs and the result. Measurements are processed in your browser.
Calculation method
The wrist-to-floor measurement selects the adjustment. Height is recorded and drawn, but does not alter the adjustment when wrist measurement is supplied. The method and 5–9 iron baselines are adapted from GolfLaunchLab’s MIT-licensed calculator.
Examples
At a 35 in wrist measurement, a 7-iron starts at 37 in (93.98 cm). At 37 in wrist-to-floor, the adjustment is +0.25 in, so a 5-iron starts at 38.25 in (97.155 cm before display rounding).
Choosing equipment
Only conventional 5–9 irons are included. Baselines are reference lengths, not universal manufacturer standards: 5=38, 6=37.5, 7=37, 8=36.5, 9=36 inches. There is no gender-based correction. Drivers, putters, single-length sets and lie angles require separate fitting.
Results are a starting point for comparison. Check the exact manufacturer and model before buying or altering equipment, and discuss the choice with a qualified equipment specialist. Nominal length alone does not determine how equipment performs.
Scope and limitations
The supported wrist interval is 27 ≤ W < 44 in. Each band includes its lower boundary and excludes its upper boundary: exactly 37 in uses +0.25 in. Outside these bands, no length is recommended. This version does not extend the end bands indefinitely.
General guidance only. Sizing varies by manufacturer and model. Check the product's sizing guide and consult a qualified equipment specialist before buying or changing equipment.
Is the result a size I must buy?
No. Read it as a starting measurement for a shortlist, then compare the sizes actually offered for your intended product. An exact number in the output is not a promise that a matching product exists or fits you. Different constructions can feel different at the same nominal length. If two available sizes bracket the result, bring both options and your measurements to a specialist rather than automatically selecting the closest number.
How should I take and enter measurements?
Use a level floor and a consistent standing position. Ask another person to read the tape if bending would change your posture. Measure twice when readings differ. Enter the number without typing a unit into the field, and select the matching unit beside it. Avoid guessing one body measurement from another: people of the same height can have different proportions. The illustration labels dimensions; it cannot check your posture or replace a tape measure.
Why can another calculator give a different answer?
A calculator can apply a different starting rule, product category or baseline. Compare those assumptions before comparing the final numbers. A difference alone does not establish which recommendation will suit you. This page explains the rule used so you can distinguish a unit conversion from a change of sizing method. Do not average unrelated recommendations and assume that the average is a verified fit; check the intended use of each recommendation first.
How precise are the displayed values?
Unit conversion preserves the measurement supplied, while displayed values are rounded for readability. One inch is exactly 2.54 centimetres. Decimal places introduced by conversion do not make the fitting method more accurate. Keep the original measurement and its unit when discussing the result with a shop. Copy the confirmed result after calculating, so the note includes the assumptions and limitations together with the numbers. Treat a rounded output as a reference rather than a cutting or setup instruction.
Static reference table
Each interval includes its lower endpoint and excludes its upper endpoint. Height does not select a band.
| Wrist to floor (in) | Adjustment (in) |
|---|---|
| 27 ≤ W < 29 | -1 |
| 29 ≤ W < 32 | -0.5 |
| 32 ≤ W < 34 | -0.25 |
| 34 ≤ W < 37 | 0 |
| 37 ≤ W < 39 | 0.25 |
| 39 ≤ W < 41 | 0.5 |
| 41 ≤ W < 44 | 1 |
Iron baselines
General guidance only. Sizing varies by manufacturer and model. Check the product's sizing guide and consult a qualified equipment specialist before buying or changing equipment.
| Iron | Baseline (in) |
|---|---|
| 5 | 38 |
| 6 | 37.5 |
| 7 | 37 |
| 8 | 36.5 |
| 9 | 36 |
Sources and scope
MIT License — © 2026 GolfLaunchLab
MIT License Copyright (c) 2026 GolfLaunchLab Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.