UK to US Legging Size Conversion
| UK | US |
|---|---|
| 6 | XS |
| 8 | S |
| 10-12 | M |
| 14-16 | L |
| 18-20 | XL |
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 14-16 legging maps to a US size L on the standard chart — the letter size to weigh a UK activewear brand's leggings against a US pair you already know fits.
Compression-style athletic leggings run tighter than a casual cotton-blend pair at the same nominal size, so brand and fabric type matter as much as this base conversion when buying leggings specifically for high-intensity workouts.
Because leggings are almost entirely stretch fabric, this converted letter size tends to fit a wider range of actual measurements comfortably than a rigid, non-stretch garment at the same label would.
Frequently asked questions
Do compression leggings fit differently at the same converted size?
Yes — compression-focused athletic leggings are cut snugger than a casual cotton-blend pair labelled the same size, so it's worth checking the brand's own fit notes for a workout-specific style.