Men's Shoe Size Chart (US, UK, EU, JP) with Width Guide
Length is half the equation. Width is the other half. Here's the full conversion chart, the D / E / 2E / 4E width system explained, and the brand-specific notes that decide whether you size up or stay true.
A US 9 in Nike fits a different foot than a US 9 in Adidas, which fits a different foot than a US 9 in Vans. All three are labeled the same. None of them fit the same way.
Add international sizing on top. A US 9 is a UK 8.5, an EU 42.5, and a JP 27. Most men have no idea about any of this. They guess. They order. They return.
Men's shoe sizing has two things almost nobody talks about: width letters (D, E, 2E, 4E) that change the actual forefoot space, and brand-specific calibration that makes the same size wear differently across labels.
This guide gives you the complete men's shoe size chart with US, UK, EU, and JP conversions, the width letter system explained from B (narrow) to 4E (extra wide), foot-length-to-shoe-size lookup in inches and millimeters, and the brand-specific notes that decide whether you size up or stay true.
How Men's Shoe Sizes Work
Two numbers determine men's shoe size.
Length number
Width letter
A "9D" is a size 9 in standard width. A "9 2E" is a size 9 in extra wide. The length is the same. The forefoot width is roughly 1/4 inch wider per width letter.
Foot Length to US Men's Shoe Size
| Foot Length (in) | Foot Length (mm) | US Men's Size |
|---|---|---|
| 9.25" | 235 | 6.5 |
| 9.375" | 238 | 7 |
| 9.5" | 241 | 7.5 |
| 9.625" | 244 | 8 |
| 9.75" | 248 | 8.5 |
| 9.9375" | 252 | 9 |
| 10.125" | 257 | 9.5 |
| 10.25" | 260 | 10 |
| 10.4375" | 265 | 10.5 |
| 10.5625" | 268 | 11 |
| 10.75" | 273 | 11.5 |
| 10.9375" | 278 | 12 |
| 11.0625" | 281 | 12.5 |
| 11.25" | 286 | 13 |
| 11.4375" | 290 | 13.5 |
| 11.5625" | 294 | 14 |
| 11.75" | 298 | 14.5 |
| 11.9375" | 303 | 15 |
Measure in the late afternoon or evening
International Conversion: US, UK, EU, JP
| US Men | UK Men | EU | JP (cm) |
|---|---|---|---|
| 6 | 5.5 | 39 | 24 |
| 6.5 | 6 | 39.5 | 24.5 |
| 7 | 6.5 | 40 | 25 |
| 7.5 | 7 | 40.5 | 25.5 |
| 8 | 7.5 | 41 | 26 |
| 8.5 | 8 | 41.5 | 26.5 |
| 9 | 8.5 | 42 | 27 |
| 9.5 | 9 | 42.5 | 27.5 |
| 10 | 9.5 | 43 | 28 |
| 10.5 | 10 | 43.5 | 28.5 |
| 11 | 10.5 | 44 | 29 |
| 11.5 | 11 | 44.5 | 29.5 |
| 12 | 11.5 | 45 | 30 |
| 12.5 | 12 | 45.5 | 30.5 |
| 13 | 12.5 | 46 | 31 |
| 14 | 13.5 | 47 | 32 |
| 15 | 14.5 | 48 | 33 |
Quick rules:
- US to UK: subtract 0.5
- US to EU: add 33 to 33.5 (varies slightly by size)
- US to JP: JP uses the foot length in centimeters directly
JP sizing is the easiest international system
Width Chart for Men
Men's shoe widths use letters from narrow to extra wide.
| Width Letter | Description | Forefoot Width (size 9 ref) |
|---|---|---|
| B | Narrow | 3.4" / 86 mm |
| D | Standard (most US default) | 3.7" / 94 mm |
| E or W | Wide | 3.9" / 99 mm |
| 2E or EE | Extra wide | 4.1" / 104 mm |
| 4E or EEEE | Very extra wide | 4.4" / 112 mm |
| 6E | Widest available (specialty) | 4.7" / 119 mm |
Each width letter step is roughly 0.2 to 0.3 inches (5 to 7 mm) of forefoot width.
Width changes slightly with shoe length. A 4-inch wide foot at size 9 is "extra wide." The same width at size 13 is closer to "wide." If you are at the extreme of length, check the brand's specific width-by-size chart.
How to Figure Out Your Width
Trace your foot on a piece of paper while standing. Measure the widest point of the trace at the ball of the foot in millimeters. Then match to the chart above.
Between two letters? Size up to the wider one
Brand-Specific Sizing Notes — Athletic
- Nike: runs slightly small. Most shoppers size up 0.5. Air Jordan and basketball lines run truer.
- Adidas: true to size for most lines. Yeezy line runs big; size down 0.5.
- Asics: true to size. Wider toe box than Nike, especially in running shoes.
- New Balance: true to size. Available in widest range of widths (B through 6E) of any major brand.
- Brooks: true to size. Available in multiple widths.
- Saucony: true to size. Wider toe box than Nike.
- Hoka: runs roomy. Size down 0.5 if between sizes.
- Vans: runs large. Size down 0.5 from Nike.
- Converse: runs large. Size down 1 full size.
Brand-Specific Sizing Notes — Casual and Lifestyle
- Allbirds: runs true. Half-sizes round down.
- Common Projects: runs large. Size down 1 to 1.5 full sizes from Nike.
- Veja: true to size. Slightly wider than Common Projects.
- Birkenstock: uses EU sizing only. Runs slightly large in EU sizes. If you are between, go down to the next EU size.
Brand-Specific Sizing Notes — Dress and Boots
- Allen Edmonds: runs slightly large. Sized D width by default with E and 3E available.
- Alden: runs large. Size down 1 from your Brannock/measured size.
- Loake: UK sizing. Runs slightly small in UK sizes. Match standard.
- Cole Haan: true to size. Some lines run roomy.
- Johnston & Murphy: true to size, wide selection of widths.
- Meermin: Spanish-made. Last-specific. Runs slightly small. Read each last description.
- Red Wing: runs large. Size down 0.5 to 1.
- Wolverine 1000 Mile: runs large. Size down 0.5.
- Dr. Martens: runs large. Size down 0.5 to 1 full size.
- Timberland: true to size for boots. Runs slightly large in sneakers.
When in doubt, search "[brand] [model] sizing" + "true to size" or "runs small" to confirm.
Athletic vs Dress vs Casual Sizing
The same foot needs different sizes in different shoe categories.
- Running shoes: size up 0.5 to 1 from your measured length. Toes need room to slide forward on impact.
- Walking and casual sneakers: match your measured length.
- Basketball shoes: match exactly. Snug fit prevents foot slide during cuts.
- Dress shoes (oxfords, derbies): match exactly. Leather stretches over wear.
- Loafers and slip-ons: match exactly. Some lines benefit from sizing down 0.5 for snug fit.
- Boots: match exactly for all-day wear, size up 0.5 if you wear thick socks regularly.
- Hiking boots: size up 0.5. Toes need room on descents.
- Sandals: match exactly. Avoid sizing up since excess length looks sloppy with open toes.
Five Mistakes That Wreck Men's Shoe Sizing
Buying by the size you "always wear"
Brand-specific calibration changes year to year. Re-measure every 1 to 2 years.
Ignoring width
Length is half the equation. Width determines whether the shoe pinches or fits.
Trusting one brand's size on another
A Nike 9 is not a Common Projects 9. Use the brand's own size chart and recent reviews.
Measuring sitting down
Foot length grows half an inch when you stand with full weight. Always measure standing.
Skipping the second foot
Most men have asymmetric feet by 2 to 5 mm. Use the larger foot.
When to Size Up vs. Size Down
Default rules:
- Running shoes: size up 0.5.
- Casual sneakers: match exactly or size down 0.5 if you have a narrower foot.
- Dress shoes: match exactly. Leather molds.
- Boots: match exactly for everyday, size up 0.5 for thick socks or hiking.
- Hiking and trail shoes: size up 0.5.
Brand exceptions:
- Vans, Converse, Common Projects, Hoka, Yeezy: size down at least 0.5 regardless of category.
- Nike, Birkenstock: size up 0.5 from your measured size.
- New Balance, Asics, Saucony, Brooks: match exactly with the right width letter.
FAQs
Why are my shoes suddenly too small?
Three options. Foot growth (yes, adult feet grow with age). Brand inconsistency between releases. Or your old size was actually wrong and you adapted to it.
Should I order multiple sizes and return what doesn't fit?
Yes for online dress shoes and athletic shoes where fit is critical. Many brands now offer free returns. Order your measured size and the size 0.5 above and below.
Why does the same shoe feel different in different colors?
Materials affect fit. Leather, suede, mesh, and synthetic uppers all stretch and feel different at the same length. The same shoe in two colors with two different materials may need different sizes.
Are width letters universal across brands?
No. A "D" width at New Balance is slightly different from a "D" width at Allen Edmonds. The chart above is an average. Always check the brand's specific width measurement.
How often should I re-measure my feet?
Every 2 to 3 years for adult men. Feet flatten and lengthen with age. After significant weight change or injury, re-measure immediately.
What does the width letter (D, E, 2E) actually mean?
D is standard width for US men's shoes. E is wide, 2E is extra wide, 4E is very extra wide. Each letter step is roughly 0.2 to 0.3 inches (5 to 7 mm) of forefoot width.
Save Your Numbers Once
Three numbers and a brand cheat sheet are all you need to shop men's shoes online from any brand in any country.
- Foot length, larger foot (mm and inches)
- Forefoot width, larger foot (mm and inches)
- Width letter (B, D, E, 2E, 4E)
Plus your brand-specific calibration notes (Nike +0.5, Vans -0.5, etc.).
Match against the brand's chart, factor the brand-specific note, and the next pair of shoes you order online lands at your front door fitting like they were made for you. Stores running Tailor Size Guide let shoppers save these numbers and reuse them across every shoe in the store.
Need help measuring? See how to measure your foot length and width at home.
Selling men's shoes, sneakers, or boots on Shopify?
Half the returns in your store are width problems and brand-specific sizing your shoppers couldn't see. Tailor Size Guide adds smart size charts, brand-specific recommendations, and width-aware fit guides to your product pages so customers stop guessing and start ordering with confidence.