UK to US Women's Jeans Size Conversion
| US/UK Waist (in) | US/UK Waist (in) |
|---|---|
| 28 | 28 |
| 30 | 30 |
| 32 | 32 |
| 34 | 34 |
| 36 | 36 |
| 38 | 38 |
| 40 | 40 |
Sizing conventions vary by brand and by cut — this table shows the standard published conversion. Always check the garment's own size chart when one is available. See how these tables are compiled.
A UK 12 pair of women's jeans lands at a US 10 — two sizes down, undoing the same gap you'd add going from US to UK. Worth having on hand when a UK online listing is the only chart you can see and the closest comparison you own is an American pair already in your wardrobe.
Because the actual waist-in-inches figure is what jeans are cut to, not the size label, this converted number is best treated as a search starting point rather than a guarantee — check the brand's own waist measurement before an online-only purchase.
Frequently asked questions
Should I trust the UK-to-US jeans size number over the waist measurement?
The waist measurement in inches, if the brand publishes it, is more reliable than the size label for jeans specifically, since denim brands vary in how consistently they apply vanity sizing across their range.