Short answer: Johnston & Murphy shoes are true to size for most people, so your normal dress-shoe number is the right starting point. Feetlot data across 135 owner-reported pairs spanning 12 Johnston & Murphy models lands the brand right on true to size on average, with the classic leather dress and loafer styles anchoring that verdict. The catch is consistency, which is only moderate: a couple of models run about half a size big, so stay true for the core dress shoes and be ready to size down a half on the roomier models.
What the Feetlot Data Says About Johnston & Murphy Sizing
Based on 135 owner-reported pairs across 12 Johnston & Murphy models in the Feetlot database, the brand lands right on true to size. The central tendency sits essentially level with the reference shoe Feetlot uses as its baseline, the Nike Air Force 1, so a typical model fits about the same length as your normal everyday size. For a brand built on classic American dress shoes alongside dress-casual sneakers, that is a neutral starting point: most owners report their standard size works.
The more useful finding, and the one no generic size chart can give you, is consistency, and here Johnston & Murphy scores moderate. Fit varies from one model to the next, enough that the brand-wide true-to-size verdict will mislead you on a couple of specific models. The honest takeaway: trust your normal size as the default, but check the exact model before buying, because not every silhouette fits like the core dress shoes.
One structural point makes the brand easier to size than many: the line is offered in genuine half sizes and a standard D medium width, and the shoes are sized off the Brannock device, so you are not forced to round. When a model runs slightly large, you usually have a clean half-size-down option rather than a compromise.
Which Johnston & Murphy Shoes Run Big, and Which Run Small
None of the Johnston & Murphy models in the Feetlot data run genuinely small. The split is between a large group that holds true to size and a small set that runs about half a size big. If you only remember one thing: stay true for the core dress and loafer styles, and size down a half on the two roomier models.
Johnston & Murphy models that run true to size (take your normal size)
The backbone of the lineup fits true. The Melton is by far the most-owned model in the data, with 70 pairs logged, and it runs true to size, making it the most reliable personal benchmark for the brand. The Tyndall Wing Tip is the next most-owned, with 27 pairs, and it runs true as well. The dress oxfords hold the same line: the Brennan Plain Toe and the Corbett II Cap Toe both run true to size. Among the loafers, slip-ons, and casual styles, the Ainsworth Penny, the Aragon II, the Runnell Chukka Boot, the Dobson Cap Lace Up, the Kendry Slip-On, and the Penn Slip-On all run true to size. For this whole group, your standard size is the right call.
Johnston & Murphy models that run big (size down a half size)
A small set runs roomier and rewards going down a half. The Harding Panel Lace Up runs about half a size big, so size down a half from your normal number for a clean dress fit. The Goodwin Moc Venetian runs about half a size big as well, and since a laceless slip-on has nothing to cinch a loose fit, the half size down keeps the heel locked. These two are the clearest exceptions to the true-to-size baseline.
The through-line matters for a brand pairing classic American dress shoes with dress-casual sneakers: the dress and loafer core is dependable and true, but a couple of models drift, which is why consistency is only moderate.
How to Find Your Johnston & Murphy Size
Because consistency is moderate, the smartest approach is to start from your true size and adjust by model and foot shape rather than by a single rule.
- Classic dress and loafer styles (Melton, Tyndall Wing Tip, Brennan Plain Toe, Corbett II Cap Toe, Ainsworth Penny): Take your true size. These run true in the Feetlot data and are the brand's most predictable fits.
- Roomier models (Harding Panel Lace Up, Goodwin Moc Venetian): Size down a half. They run about half a size big, and on a laceless Venetian the smaller size prevents heel slip.
- Dress-casual sneakers and slip-ons: Start true, but check the specific model. The casual silhouettes do not always fit exactly like the leather dress shoes, so the consistency caveat applies most here.
- Wide feet: The dress shoes are built primarily on a standard D medium width, so width options are fewer than in athletic brands. Look for a wide variant where offered rather than sizing up a full size to chase room, which distorts the length.
- Narrow feet: Stay true and rely on laces or a tighter throat to lock the midfoot; on the half-size-big models, sizing down a half tightens it further.
- Measure first: The brand sizes off the Brannock device, so measure both feet in the evening, fit to the larger foot, and compare your foot length to the chart below. Since the brand offers genuine half sizes, you can dial the fit more precisely.
Johnston & Murphy vs Other Brands
Against the major sneaker brands, Johnston & Murphy sits on the slightly roomier side. Compared with Nike, it runs about half a size bigger-fitting, so Nike comes up the smaller of the two: if you wear a size 10 in Nike, you wear about a size 9.5 in Johnston & Murphy. The same pattern holds against adidas, New Balance, Vans, Brooks, and ASICS, which all run about half a size smaller-fitting, so you would take a half size larger number in those brands. Converse is the exception and fits about the same on average, so a straight size transfer works there.
The practical summary: if your reference is a typical athletic sneaker, the dress styles will feel about a half size roomier, so your normal sneaker number may run slightly long. Because the brand is offered in half sizes, you can take that half size down cleanly rather than rounding.
Johnston & Murphy Size Chart (US / UK / EU)
Standard men's conversion. Measure your foot length in centimeters and match to the nearest size, rounding up if you are between sizes.
| US (Men) | UK | EU | Foot length (cm) |
|---|---|---|---|
| 7 | 6 | 40 | 25.0 |
| 7.5 | 6.5 | 40.5 | 25.5 |
| 8 | 7 | 41 | 26.0 |
| 8.5 | 7.5 | 41.5 | 26.5 |
| 9 | 8 | 42 | 27.0 |
| 9.5 | 8.5 | 42.5 | 27.5 |
| 10 | 9 | 43 | 28.0 |
| 10.5 | 9.5 | 44 | 28.5 |
| 11 | 10 | 44.5 | 29.0 |
| 11.5 | 10.5 | 45 | 29.5 |
| 12 | 11 | 45.5 | 30.0 |
| 13 | 12 | 46.5 | 31.0 |
For women's sizing, subtract roughly 1.5 from the US men's number. EU and centimeter values stay the same for a given foot length.
How Feetlot Measures This
Feetlot fits a global offset model to more than 100,000 owner-reported shoe records. Each shoe gets a single number that captures how its fit drifts from the reference shoe, the Nike Air Force 1. Aggregating those numbers across every model in a brand reveals the overall pattern, how consistent it is, and which models break from it. For Johnston & Murphy, that aggregation across 135 pairs and 12 models separates the dependable, true-to-size dress and loafer styles from the two roomier outliers, surfaced from the data rather than from opinion. To get a personal recommendation in any model, sign in and add the shoes you already own and how they fit, and Feetlot will translate your real fits into a predicted size.
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