Clothing Size Converter
US, UK, and EU sizes, anchored to the measurements they actually describe.
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Measure the bust at its fullest point, the waist at its narrowest, and the hips about 20 cm below the waist, keeping the tape level and not pulled tight.
Women's tops & dresses — measurements for this row are below.
The same garment in every system
- LetterM
- US8
- UK12
- EU38
- Bust94 cm
- Waist76 cm
- Hip101 cm
Women's tops & dresses size chart
| Letter | US | UK | EU | Bust | Waist | Hip |
|---|---|---|---|---|---|---|
| XXS | 0 | 4 | 30 | 78 cm | 60 cm | 85 cm |
| XS | 2 | 6 | 32 | 82 cm | 64 cm | 89 cm |
| S | 4 | 8 | 34 | 86 cm | 68 cm | 93 cm |
| S | 6 | 10 | 36 | 90 cm | 72 cm | 97 cm |
| M (your size) | 8 | 12 | 38 | 94 cm | 76 cm | 101 cm |
| M | 10 | 14 | 40 | 98 cm | 80 cm | 105 cm |
| L | 12 | 16 | 42 | 103 cm | 85 cm | 110 cm |
| L | 14 | 18 | 44 | 108 cm | 90 cm | 115 cm |
| XL | 16 | 20 | 46 | 113 cm | 95 cm | 120 cm |
| XL | 18 | 22 | 48 | 118 cm | 100 cm | 125 cm |
| XXL | 20 | 24 | 50 | 124 cm | 106 cm | 131 cm |
Clothing sizes are not standardised anywhere. Two brands in the same country routinely differ by a full size, and the same brand differs between its own ranges. Where a retailer publishes its own size chart in centimetres, use that against your measurements — it beats any country-to-country table, including this one.
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How it works
To convert a clothing size, pick the garment type and the system your size is in — the equivalent US, UK, EU, and letter sizes appear alongside the body measurements that size represents, which are the only part of a size chart that means anything fixed.
A US women’s size 8 has no legal or industry definition. There is no standards body that certifies it, no measurement it is required to correspond to, and no penalty for a brand labelling whatever it likes. The old US voluntary standard was withdrawn in 1983 and nothing replaced it. So a conversion table between countries is a table of conventions — useful, widely published, and not a fact about garments.
What has a definition is your body. That is why the measurements sit in the visible chart rather than behind a toggle, and why you can convert from a measurement rather than from a size: bust, waist, hip, chest, and neck are the numbers a retailer’s own size chart is really asking for, and they are the numbers that will still mean the same thing in five years.
They have not meant the same thing for the last forty. Retail sizes have drifted steadily smaller — a phenomenon usually called vanity sizing — to the point where a garment labelled size 8 today fits roughly the body a size 12 fitted in the 1980s. A vintage or secondhand listing quoting an original label is describing a different garment from a current one with the same number, which is a good reason to ask sellers for measurements.
The broad relationships still hold within a moment in time: UK women’s sizes run four numbers above US ones, and EU sizes run about 30 above US ones for tops and dresses. Men’s clothing is measured more honestly — chest and waist in inches in the US and UK, the same measurement in centimetres in Europe — which is why men’s conversions are more reliable than women’s.
Women’s sizes: US, UK, EU
The standard offsets are US + 4 = UK and US + 30 = EU, and they hold across most of the range. The bust measurement is what the size is meant to describe.
| US / UK / EU | Bust |
|---|---|
| 2 / 6 / 32 | 82 cm |
| 4 / 8 / 34 | 86 cm |
| 6 / 10 / 36 | 90 cm |
| 8 / 12 / 38 | 94 cm |
| 10 / 14 / 40 | 98 cm |
| 12 / 16 / 42 | 103 cm |
| 14 / 18 / 44 | 108 cm |
| 16 / 20 / 46 | 113 cm |
Men’s tops and jackets
Men’s sizing is the chest measurement in inches in the US and UK, and the same measurement in centimetres in Europe — so the EU number is roughly the US number plus 10.
| US / UK / EU | Chest |
|---|---|
| 34 / 34 / 44 | 87 cm |
| 36 / 36 / 46 | 92 cm |
| 38 / 38 / 48 | 97 cm |
| 40 / 40 / 50 | 102 cm |
| 42 / 42 / 52 | 107 cm |
| 44 / 44 / 54 | 112 cm |
| 46 / 46 / 56 | 117 cm |
Letter sizes
S, M, and L cover two numeric sizes each in most ranges, which is why a letter size fits far less predictably than a numeric one. Where a garment offers both, the numeric size is the more precise choice.
| Letter | US women’s / US men’s |
|---|---|
| XS | 2 / 32–34 |
| S | 4–6 / 34–36 |
| M | 8–10 / 38–40 |
| L | 12–14 / 42–44 |
| XL | 16–18 / 46 |
| XXL | 20 / 48 |
FAQ
What is a UK size 12 in US sizes?
A US 8. UK women’s sizes run four numbers above US ones across most of the range, so UK 10 is US 6, UK 12 is US 8, and UK 14 is US 10.
What is a US size 8 in EU sizes?
An EU 38 for women’s tops and dresses. The usual offset is US + 30, though some European brands number one step differently, which is why the bust measurement is shown alongside.
How do I measure myself for a size chart?
Measure the bust at its fullest point, the waist at its narrowest, and the hips about 20 cm below the waist, keeping the tape level and snug but not tight. For men, the chest under the arms at its fullest and the waist where trousers sit. Measure your body, not a garment that fits you.
Why do sizes differ so much between brands?
Because clothing sizing is not standardised in any country. Each brand fits to its own block, and sizes have drifted smaller over decades. Where a retailer publishes a chart in centimetres, use that against your measurements — it beats any country-to-country conversion.
Are vintage clothing sizes different?
Substantially. Sizes have drifted about two numbers smaller since the 1980s, so a vintage size 12 is roughly a modern size 8. Buy vintage by measurement rather than by label.