Last updated October 12, 2026 · Report an error
Clothing sizes don't follow a universal formula — a US size 8 is a UK 12, an EU 40, and an IT 44, and these relationships come from published sizing conventions rather than a mathematical conversion.
This converter finds the equivalent women's clothing size across US, UK, EU, IT, and AU systems.
How it works
Enter a known size and its sizing system. The converter reads across a standard published women's sizing chart, interpolating between listed sizes when your input falls between two chart entries.
- Enter known size.
- Enter size system.
- Click Calculate to see your results.
Examples
US 8
A US women's size 8 corresponds to a UK 12, an EU 40, an IT 44, and an AU 12.
Who should use it
- Converting a known clothing size when shopping from an international retailer.
- Understanding size chart differences between US, UK, and European clothing.
Industry applications
- Retail and e-commerce
- Fashion and apparel
Advantages
- Covers five major sizing systems (US, UK, EU, IT, AU) at once.
- Interpolates smoothly between listed chart sizes.
Limitations
- Based on a general standard chart — doesn't account for brand-specific size variations, which can be significant.
Common mistakes to avoid
- Assuming clothing sizes convert with the same precision as a physical measurement unit — actual fit varies by brand and garment cut, so treat conversions as a helpful estimate, not an exact guarantee.
- Using this converter for men's sizing, which follows different conventions entirely.
Best practices
- When shopping internationally, use this converter as a starting point, but check the specific brand's own size chart when available — actual fit can vary meaningfully between brands even at the "same" converted size.
Tips
- When shopping from an unfamiliar international brand, look for the brand's own body measurement chart (bust/waist/hip in inches or cm) rather than relying solely on a converted size number — actual body measurements are a more reliable fit indicator than any size conversion.
Frequently asked questions
Yes, with no signup and no limit on how many sizes you convert.
Not really — unlike some measurement units, clothing sizes vary by brand, country, and even by garment cut within the same brand. This converter uses a widely published standard chart as a reasonable general reference, but always check a specific brand's own size chart when possible.
No — this converter is specifically built around standard women's clothing size conventions, which follow different numbering than men's sizing.
By long-standing convention, UK women's dress sizes run 4 sizes higher than the equivalent US size (e.g., US 8 = UK 12) — this consistent offset is why the chart interpolates smoothly across the range.