COS Clothing Size Chart
COS runs large — consider sizing down.
COS Dress Size Conversion — US to UK
Numeric size conversion for COS women's clothing, with body measurements in cm or inches. Find your exact US, UK, EU, and AU size.
| US | UK | EU | AU | Bust (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|---|---|---|
| 2 | 4 | 32 | 4 | 76 | 60 | 75 |
| 4 | 6 | 34 | 6 | 80 | 64 | 79 |
| 6 | 8 | 36 | 8 | 84 | 68 | 83 |
| 8 | 10 | 38 | 10 | 88 | 72 | 87 |
| 10 | 12 | 40 | 12 | 92 | 76 | 91 |
| 12 | 14 | 42 | 14 | 96 | 80 | 95 |
| 14 | 16 | 44 | 16 | 100 | 85 | 99 |
| 16 | 18 | 46 | 18 | 104 | 90 | — |
COS Men's Size Chart
| Size | US | EU | UK | Chest (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|---|---|---|
| XS | XS | 44 | 34 | 86 | 71 | 86 |
| S | S | 46 | 36 | 91 | 76 | 91 |
| M | M | 48 | 38 | 97 | 81 | 97 |
| L | L | 50 | 40 | 102 | 86 | 102 |
| XL | XL | 52 | 42 | 107 | 91 | 107 |
| XXL | XXL | 54 | 44 | 112 | 97 | 112 |
COS Women's Size Chart
| Size | US | EU | UK | Chest (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|---|---|---|
| XS | 0-2 | 32-34 | 4-6 | 79 | 61 | 86 |
| S | 4-6 | 36-38 | 8-10 | 84 | 66 | 91 |
| M | 8-10 | 40-42 | 12-14 | 89 | 71 | 97 |
| L | 12-14 | 44-46 | 16-18 | 97 | 79 | 104 |
| XL | 16-18 | 48-50 | 20-22 | 104 | 86 | 112 |
| XXL | 20-22 | 52-54 | 24-26 | 112 | 94 | 119 |
Data verified Jun 2026 · Official size guide · See an error? Report it
Sizes shown are standard international conversions. Individual brands may vary — always check COS's official size chart for exact measurements.
What is COS EUR 38 in US and UK size?
COS EUR 38 is a US 8 and UK 10 — a standard Medium. COS labels its clothing in EU sizes and is cut relaxed, so if you prefer a closer fit, size down one.
- US
- 8
- UK
- 10
- EU
- 38
- AU
- 10
COS Sizing & Fit Guide
COS uses European sizing and is known for a relaxed, minimalist cut, so many shoppers find it runs large — size down if you want a fitted look. COS itself doesn't publish a runs-small/large rating, so check the garment-specific measurements in each product description. Letter sizes shown are standard international sizing; the numeric table uses COS's own published body measurements.
COS European Size Conversion
COS is part of the H&M Group but labels its clothing in European (EU) sizes, which catches out US and UK shoppers. Per COS's own size guide, the conversion is: EU 32 = US 2 = UK 4, EU 34 = US 4 = UK 6, EU 38 = US 8 = UK 10, EU 42 = US 12 = UK 14. COS aligns US, UK and EU slightly differently from H&M — its chart maps each US size one UK number lower than H&M does, so use the table above rather than your H&M number. Each COS letter size spans two EU numbers (S = EU 34/36, M = EU 38/40, L = EU 42/44), a sign of COS's broad, relaxed grading.
Does COS Run True to Size?
COS is built around a minimalist, oversized aesthetic, and most shoppers find it runs large — tops, shirts, knitwear and coats in particular read roomy, so sizing down one is common if you want a tailored fit. Structured trousers and blazers track closer to the body chart. COS does not officially publish a runs-small or runs-large rating; instead it advises checking the garment-specific measurements in each product description, because many styles are cut in a deliberately unique way.