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.
Enter your measurements to see your size highlighted here.
| 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
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| Size | EU | UK | Chest (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|---|---|
| XS | 44 | 34 | 86 | 71 | 86 |
| S | 46 | 36 | 91 | 76 | 91 |
| M | 48 | 38 | 97 | 81 | 97 |
| L | 50 | 40 | 102 | 86 | 102 |
| XL | 52 | 42 | 107 | 91 | 107 |
| XXL | 54 | 44 | 112 | 97 | 112 |
COS Women's Size Chart
Enter your measurements to see your size highlighted here.
| 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.