Clothing sizing conventions differ noticeably between the US, UK, and EU, and unlike shoe sizes, there's no simple physical measurement that ties them together directly — sizing is based on differing standard body-measurement charts in each region. This tool provides commonly used conversion offsets between the three systems for both men's and women's clothing.
Women's sizing typically shows the largest apparent gap: a US size 8 is roughly a UK 12 and an EU 40, since the systems start counting from different baselines.
As with shoe sizing, exact fit still varies by brand and cut, so this conversion is best used as a starting reference point before checking a specific retailer's size chart, especially for closely fitted garments.
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Frequently asked questions
Why do women's sizes shift more between countries than men's?
Historically, women's sizing systems in different regions were standardized independently around different reference measurements, leading to a bigger apparent offset than men's sizing, which tends to align more closely across systems.
Should I trust this over a brand's own size chart?
Use this as a general starting point, but always check a specific brand's chart when it's available, since cut and fit vary meaningfully between labels.