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The ultimate guide to dress size conversion
Whether you're converting AU or US to UK or vice-versa, we've got everything you need to make sure your next online order fits perfectly.
Wondering if you’re actually a size 12 or a 14? Sizes seem to differ from store to store in the UK alone, so online shopping opens up a whole new world of confusion when it comes to international dress sizes. To try and make sense of it – we’ve researched a few different sources and constructed some handy dress size calculators for all your international online shopping needs.
A few easy rules to remember:
- S/M/L can vary hugely – always check the retailer’s own sizing chart
- Minus 2 sizes to get your US size (for example, a UK dress size 6 is a US dress size 2)
- French sizes are also used in Belgium and Portugal
- German sizes are also used in Austria, Netherlands, Switzerland, Sweden, Denmark and Norway.
- AU dress sizing is the same as UK
Women’s Dress Size Chart: International
| USA | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| UK | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
| Australia | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
| France & Spain | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 |
| Germany | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 |
| Italy | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 |
| Japan | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21 | 23 | 27 |
UK Women’s dress sizes in measurements:
| US size | Bust | Waist | Hips | |||
|---|---|---|---|---|---|---|
| INCHES | CM | INCHES | CM | INCHES | CM | |
| 4 | 31 | 78 | 24 | 60 | 33 | 83.5 |
| 6 | 32 | 80.5 | 25 | 62.5 | 34 | 86 |
| 8 | 33 | 83 | 26 | 65 | 35 | 98.5 |
| 10 | 35 | 88 | 28 | 70 | 37 | 93.5 |
| 12 | 37 | 93 | 30 | 75 | 39 | 98.5 |
| 14 | 39 | 98 | 31 | 80 | 41 | 103.5 |
| 16 | 41 | 103 | 33 | 85 | 43 | 108.5 |
| 18 | 44 | 110.5 | 36 | 92.5 | 46 | 116 |
See our top sites to shop for dresses.
Men’s shirt sizes – in measurements:
| Size | Chest | Neck | ||
|---|---|---|---|---|
| INCHES | CM | INCHES | CM | |
| XS | 33-34 | 84-86 | 13-13.5 | 33-34 |
| S | 35-37 | 89-94 | 14-14.5 | 36-37 |
| M | 38-40 | 96-102 | 15-15.5 | 38-39 |
| L | 42-44 | 107-112 | 16-16.5 | 40-42 |
| XL | 46-48 | 116-122 | 17-17.5 | 43-45 |
| XXL | 50-52 | 127-132 | 18-18.5 | 46-47 |
| XXXL | 54-56 | 137-140 | 19-19.5 | 48-49 |
Men’s jacket/suit sizes – international:
| USA | UK | Italy | France | Australia | Japan | Chest (inches) | Chest (CM) |
|---|---|---|---|---|---|---|---|
| 34 | 34 | 44 | 44 | 34 | S | 34 | 86 |
| 36 | 36 | 46 | 46 | 36 | 36 | 92 | |
| 38 | 38 | 48 | 48 | 38 | M | 38 | 97 |
| 40 | 40 | 50 | 50 | 40 | L | 40 | 102 |
| 42 | 42 | 52 | 52 | 42 | 42 | 107 | |
| 44 | 44 | 54 | 54 | 44 | LL | 44 | 112 |
Men’s trouser sizes:
| USA | UK | Italy | France | Australia | Japan | Waist (inches) | Waist (cm) |
|---|---|---|---|---|---|---|---|
| 28 | 28 | 44 | 28 | 28 | XS | 28 | 71 |
| 29 | 29 | 45 | 29 | 29 | 29 | 74 | |
| 30 | 30 | 46 | 30 | 30 | S | 30 | 76 |
| 31 | 31 | 47 | 31 | 31 | 31 | 79 | |
| 32 | 32 | 48 | 32 | 32 | M | 32 | 81 |
| 33 | 33 | 49 | 33 | 33 | 33 | 84 | |
| 34 | 34 | 50 | 34 | 34 | L | 34 | 86 |
| 35 | 35 | 51 | 35 | 35 | 35 | 89 | |
| 36 | 36 | 52 | 36 | 36 | XL | 36 | 92 |
| 37 | 37 | 53 | 37 | 37 | 37 | 94 | |
| 38 | 38 | 54 | 38 | 38 | 2XL | 38 | 97 |
| 39 | 39 | 55 | 39 | 39 | 39 | 99 | |
| 40 | 40 | 56 | 40 | 40 | 3XL | 40 | 102 |
How to find your dress size?
The best way to determine your dress size is to use a conversion chart such as the ones above. These are based on our research across the web, but if a retailer you’re buying from has their own, it’s best to check that out. Use a tape measure to get accurate bust, waist and hip measurements at home.
What dress size is a ‘Medium’?
This varies from brand to brand and by country. Some stores will consider a medium to be a size 10, while others a size 12-14. As an average, a Medium is likely to be a around a size 12. This is all dependent on retailers, dress cut and shape — so we’d always recommend checking the store’s own sizing chart or using a retailer with free returns.
What dress size is plus size?
It absolutely depends on the retailers, but a lot of plus size-specific retailers will stock from a size 12 and up.
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