Clothing Size Calculator & Converter

Women's US sizes run about 4 numbers below UK sizes (US 8 ≈ UK 12) and EU sizes are roughly US + 32 (US 8 ≈ EU 40). Men's US and UK are close (US 40 ≈ UK 40), while EU men's is about 10 higher. The converter shows all equivalents at once so you never have to memorise the offsets.

Measure your underbust (just below the breasts) and your bust (around the fullest part). Round the underbust to the nearest even number for the band. The cup is the difference: about 2.5 cm / 1 inch = A, 5 cm = B, 7.5 cm = C, 10 cm = D, and so on. This tool does the rounding and shows your band, cup, and sister sizes automatically.

Sister sizes are bra combinations with the same cup volume but different bands — for example 34B, 32C, and 36A all hold a similar breast volume. If your usual band feels tight, try the sister size with a larger band and smaller cup; if it rides up, go smaller band, larger cup.

For women, EU is roughly US + 31 (US 8 ≈ EU 39) and UK is about US − 2 (US 8 ≈ UK 6). For men, EU ≈ US + 33 and UK ≈ US − 1. Kids' scales differ again. The shoe converter handles women's, men's, and kids' sizes with centimetre and millimetre values so the result is exact, not approximate.

Measure bust, waist, and hip in centimetres or inches, then match them to the regional size chart. Because brands vary, the measurement-based size is more reliable than the tag. The apparel modes return a recommended US/UK/EU size from your bust/waist/hip directly.

Generally yes. Japanese women's sizes often run one to two sizes smaller than US equivalents, and are given as centimetre-based numbers (e.g. JP 11 ≈ US 8). The converter accounts for these regional shifts so you don't order a size that fits differently than expected.

Yes. All conversions and size calculations run entirely in your browser. Your measurements are never uploaded, stored, or shared — you can use it on any device without an account.