Work out clothing size converter instantly with clear inputs, formula shown and shareable results.
Clothing sizes are conventions rather than measurements, but the common offsets are stable: women's UK sizes run four larger than US and 28 smaller than EU, while men's jackets carry the chest measurement in inches in the UK and US and add 10 for EU. Vanity sizing means brands still vary by a full size or two.
Women's sizing
US = UK - 4; EU = UK + 28
Men's jackets
EU = chest inches + 10
Because no size standard is enforced. Vanity sizing has drifted labels downwards over decades, so measurements matter more than labels.
Always by measurement where a size chart gives one. Chest, waist and inside leg in centimetres transfer between brands; labels do not.