Uniqlo Size Guide — Japanese Sizing in EU, UK & US
Uniqlo uses Japanese sizing which runs approximately one size smaller than standard European sizing. An Uniqlo M for women equals EU 38–40, not EU 40–42 as you might expect. Always size up one from your usual EU size when shopping Uniqlo.
Does Uniqlo Run Small?
Yes — Uniqlo runs 1 full size smaller than standard EU for both women and men. Always size up one when ordering from Uniqlo if you are used to European sizing.
- →Women: If you wear EU 36 (S) in most brands, order M in Uniqlo. EU 38 → Uniqlo M, EU 40 → Uniqlo L.
- →Men: If you wear EU 48 (M) in most brands, order L in Uniqlo. EU 46 → Uniqlo M, EU 50 → Uniqlo L.
- →Kids: Uniqlo kids follow the same JP sizing. Size up one from the EU equivalent.
- →Footwear: Uniqlo shoes use JP centimetre sizing. A JP 24.0 cm equals EU 38 for women.
Uniqlo Women's Size Chart
Uniqlo women's clothing is labelled with a letter size (XS–XXL) alongside a JP code that indicates height and chest range. Use your bust and waist measurements to find the most accurate fit.
| Uniqlo | JP code | EU | UK | US | Bust cm | Waist cm |
|---|---|---|---|---|---|---|
| XS | 155/80A | 36 | 8 | 4 | 80 | 63 |
| S | 158/84A | 38 | 10 | 6 | 84 | 67 |
| M | 160/88A | 40 | 12 | 8 | 88 | 71 |
| L | 165/92A | 42 | 14 | 10 | 92 | 75 |
| XL | 170/96A | 44 | 16 | 12 | 96 | 79 |
| XXL | 175/104A | 46 | 18 | 14 | 104 | 87 |
* Measurements in cm. If your bust and waist fall in different size rows, prioritise the bust for tops and the waist/hips for bottoms.
Uniqlo Men's Size Chart
Men's Uniqlo sizing also runs small. A Uniqlo M for men corresponds to EU 48, not EU 50. Measure your chest at the fullest point to find the right size for tops and jackets.
| Uniqlo | JP code | EU | UK | US | Chest cm | Waist cm |
|---|---|---|---|---|---|---|
| XS | 155/76A | 44 | 34 | XS | 76 | 68 |
| S | 160/80A | 46 | 36 | S | 80 | 72 |
| M | 165/88A | 48 | 38 | M | 88 | 80 |
| L | 170/96A | 50 | 40 | L | 96 | 88 |
| XL | 175/104A | 52 | 42 | XL | 104 | 96 |
| XXL | 180/112A | 54 | 44 | XXL | 112 | 104 |
* For structured pieces (blazers, jackets), prioritise chest measurement. For knitwear and t-shirts, Uniqlo runs slightly more relaxed.
Uniqlo Shoe Size Chart
Uniqlo footwear uses Japanese centimetre sizing. Measure your foot from heel to tip of the longest toe and match it to the JP (cm) column. Uniqlo shoes run true to JP size.
| JP (cm) | EU | UK | US Women | US Men |
|---|---|---|---|---|
| 22.5 | 35.5 | 3 | 5 | — |
| 23.0 | 36 | 3.5 | 5.5 | — |
| 23.5 | 37 | 4 | 6 | — |
| 24.0 | 38 | 5 | 7 | 6 |
| 24.5 | 38.5 | 5.5 | 7.5 | 6.5 |
| 25.0 | 39 | 6 | 8 | 7 |
| 25.5 | 40 | 6.5 | 8.5 | 7.5 |
| 26.0 | 41 | 7 | — | 8 |
| 27.0 | 42 | 8 | — | 9 |
* US Women's and US Men's use different scales. "—" indicates the size is not standard for that gender in this range.
How to Measure Yourself for Uniqlo
Take measurements over lightweight underwear (not over clothes). Use a soft tape measure, keep it flat and horizontal — not tight, but with no slack.
- →Bust / Chest: Measure around the fullest part of your chest, keeping the tape parallel to the floor. For men, measure at the widest point across the shoulder blades.
- →Waist: Measure around your natural waist, approximately 2–3 cm above the navel. Stand relaxed — do not suck in.
- →Hips: Measure around the fullest part of your hips, approximately 20 cm below the natural waist.
- →Foot length: Stand on a piece of paper, trace your foot and measure from heel to the tip of the longest toe in cm. This is your JP shoe size.
If your measurements fall between two sizes, always choose the larger Uniqlo size. Their fabric has very little stretch, so a slightly bigger fit is always more comfortable than a size that is too small.
Uniqlo Sizing vs Other Brands
Uniqlo sizes run roughly one step smaller than mainstream European brands. Here is a quick comparison to help you find the right size:
| Your EU size | Uniqlo Women | Uniqlo Men | Zara | H&M | Nike |
|---|---|---|---|---|---|
| EU 36 | XS–S | — | XS | XS | XS |
| EU 38 | S–M | — | S | S | S |
| EU 40 | M–L | — | M | M | M |
| EU 42 | L–XL | — | L | L | L |
| EU 46 | — | S | S | S | S |
| EU 48 | — | M | M | M | M |
| EU 50 | — | L | L | L | L |
If you normally wear S in Zara, order M in Uniqlo. If you wear M in H&M, order L in Uniqlo. Nike sizing (EU-based) aligns more closely with Zara than with Uniqlo, so the same rule applies: one size up in Uniqlo from your Nike size.
Frequently Asked Questions about Uniqlo Sizing
Does Uniqlo run small?
Yes, Uniqlo runs 1 full size smaller than standard EU sizing. This applies to both women's and men's clothing. Always size up one from your usual EU size when ordering from Uniqlo.
Is Uniqlo sizing the same globally?
Yes. Uniqlo uses Japanese (JP) sizing as its global standard. Whether you shop in Japan, Spain, the UK or the US, the Uniqlo S/M/L labels correspond to the same JP measurements worldwide.
How do I convert EU to Uniqlo size?
For women: EU 38 = Uniqlo S, EU 40 = Uniqlo M, EU 42 = Uniqlo L. For men: EU 46 = Uniqlo S, EU 48 = Uniqlo M, EU 50 = Uniqlo L. In general, move up one letter size from your EU equivalent.
What is Uniqlo M in EU for women?
Uniqlo M for women corresponds to EU 40 (UK 12, US 8). The bust measurement for Uniqlo M is approximately 88 cm and the waist is 71 cm.
Does Uniqlo sizing change by product line?
Slightly. Uniqlo's AIRism and HEATTECH lines are designed for a close fit and may feel smaller. Their relaxed-fit and oversized collections (like Wide Fit) are true to their label. Check the specific product's fit description on the Uniqlo website.