Why Japanese Sizing Is Different
One of the most common frustrations when shopping for Japanese clothing — especially online — is sizing. Japanese garments are generally cut for a slimmer, shorter body frame than Western sizing standards assume. This doesn't mean you can't wear Japanese fashion; it just means you need to be more careful and systematic about finding your correct size.
This guide covers tops, bottoms, shoes, and some helpful tips to ensure your purchases actually fit.
Women's Tops & Dresses: Size Conversion Table
| Japan Size | US Size | UK Size | EU Size | Bust (cm) |
|---|---|---|---|---|
| 5 / XS | 0 | 4 | 32 | 76–79 |
| 7 / S | 2–4 | 6–8 | 34–36 | 80–83 |
| 9 / M | 6–8 | 10–12 | 38–40 | 84–87 |
| 11 / L | 10–12 | 14 | 42 | 88–91 |
| 13 / XL | 14 | 16 | 44 | 92–95 |
Men's Tops: Size Conversion Table
| Japan Size | US/UK Size | Chest (cm) |
|---|---|---|
| S | XS–S | 84–88 |
| M | S–M | 88–92 |
| L | M–L | 92–96 |
| XL | L–XL | 96–100 |
| XXL | XL–XXL | 100–104 |
Shoe Size Conversions
Japanese shoe sizing uses centimeter-based measurements (the length of your foot in cm). This is actually one of the most precise systems in the world once you know your foot length.
| Japan (cm) | US Women's | US Men's | UK | EU |
|---|---|---|---|---|
| 22.5 | 5.5 | 4 | 3 | 35–36 |
| 23.5 | 6.5 | 5 | 4 | 37 |
| 24.5 | 8 | 6.5 | 5.5 | 38–39 |
| 25.5 | 9 | 7.5 | 6.5 | 40 |
| 26.5 | 10 | 8.5 | 7.5 | 41–42 |
| 27.5 | 11 | 9.5 | 8.5 | 43 |
Practical Tips for Getting the Right Fit
- Always measure yourself. Grab a tape measure and note your bust, waist, hips, and inseam in centimeters. Japanese retailers almost always list garment measurements alongside size labels — these are your best friend.
- Read the garment measurements, not just the size label. A Japanese "M" may fit very differently across brands. Compare the listed measurements to your own body measurements.
- Account for ease. A top listed with a 86cm bust is designed for someone with roughly an 82–84cm chest — the extra space is ease. Structured garments have less ease; knitwear has more.
- Check the model's listed height. Japanese product photography often shows model stats. If the model is 165cm and the dress hits mid-thigh on them, adjust your expectations accordingly.
- Look for "free size" items carefully. "Free size" (フリーサイズ) in Japan typically fits a body up to roughly a US size 4–6 (S/M Western). Don't assume it means truly universal.
- Check return policies before buying. International returns from Japanese retailers can be complicated. When in doubt, contact the seller with your measurements before purchasing.
Shopping Smart
With a little preparation, finding well-fitting Japanese clothes is entirely achievable. Keep your measurements handy, compare them carefully to product listings, and you'll be navigating Japanese fashion sites like a pro in no time.