Women's jeans waist (W) to EU size

Useful when one brand labels jeans by waist inches and a European brand uses EU numbers.

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How to use it

  1. Enter jeans waist size (w).
  2. The result appears straight away and updates as you edit.
  3. Copy the result, or copy a link that keeps the same values to share it.

How it is calculated

Women's jeans chart used: US size = 2 × (W - 25), so W27 = US 4. Then EU = US + 32 and UK = US + 4, and cm = W × 2.54 exactly.

Example

Inputs: Jeans waist size (W) = 27 in. Result: EU size: 36; US size: 4; UK size: 8.

Limits and caveats

  • The W number is a label and can differ from your actual waist by several cm depending on the cut and rise.
  • Brands vary a lot in jeans, so try on or check the brand chart.
  • Covers W25 to W36 only, not W24 and below (US 00).

Questions about this tool

What EU size is a W27 jean?

W27 is EU 36 on the common chart, which is US 4 and UK 8.

Is the EU jeans number the same as the dress number?

On this chart yes, the same EU number covers dresses and trousers, though stretch denim may let you size down.

How do I go from EU back to W?

Subtract 32 to get the US size, then divide by 2 and add 25. For example EU 40 gives US 8, then W29.