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Clothing Size Converter Calculator

Work out clothing size converter instantly with clear inputs, formula shown and shareable results.

About Clothing Size Converter Calculator

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.

Formulas

Women's sizing

US = UK - 4; EU = UK + 28

Men's jackets

EU = chest inches + 10

Worked example

With the default values below, Clothing Size Converter Calculator returns US Size of 8. Change any input above and every figure here is recalculated in your browser.

Inputs used

UK sizeminimum 0
12
Garmentone of Women's dress or top, Men's suit or jacket, Men's shirt collar
Women's dress or top

Results

US Size
8
EU Size
40
Approximate Chest Or Bust
40.0 in
Size Equivalence
UK 12 = US 8 = EU 40

Step by step

  1. 1Values used
  2. 2Women's sizing
  3. 3Men's jackets
  4. 4US Size= 8
  5. 5EU Size= 40
  6. 6Approximate Chest Or Bust= 40.0 in
  7. 7Size Equivalence= UK 12 = US 8 = EU 40

Assumptions and limits

  • The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why do brands differ so much?

Because no size standard is enforced. Vanity sizing has drifted labels downwards over decades, so measurements matter more than labels.

Should I go by size or measurement?

Always by measurement where a size chart gives one. Chest, waist and inside leg in centimetres transfer between brands; labels do not.

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