Is Lululemon sizing the same as regular clothing sizing?

No. Lululemon uses its own numeric scale that shares size numbers (0–20) with typical North American sizing but is measured and cut differently, so your usual size in another brand is only a rough starting point.

Should I size up in Lululemon leggings?

If you're between two sizes and want a more relaxed, all-day-comfortable fit, sizing up is common, especially in compressive fabrics like Align. If you prefer a snugger, more supportive feel for workouts, staying at your measured size usually works better.

Size guide

Lululemon Size Guide: Understanding Their Sizing System

Lululemon's size numbers share the 0–20 scale with regular clothing sizing, but the actual measurements behind them are its own thing entirely.

Lululemon uses a numeric sizing scale (0 through 20 for women's) that overlaps in name with standard North American clothing sizes but doesn't use the same measurements behind the scenes. Fit also varies somewhat by garment and fabric — a legging in Nulu fabric and a jacket in a structured fabric won't necessarily feel identical at the same number. Use the chart below as a general starting point, then check the size and fit notes on the specific product page, since Lululemon does adjust cut by style.

Size chart

These are general waist and hip ranges across Lululemon's core women's sizing — treat them as a starting point rather than exact, since fit varies by garment style and fabric. Measure your waist at the narrowest point and your hips at the widest point.

Lululemon Size	Waist (in)	Hip (in)
0	23–24	33–34
2	25–26	35–36
4	27–28	37–38
6	29–30	39–40
8	31–32	41–42
10	33–34	43–44
12	35–36.5	45–46.5
14	37.5–39	47.5–49

How to measure yourself for Lululemon sizing

Measure your waist at its narrowest point, usually just above the belly button, with the tape snug but not compressing.
Measure your hips at the widest point, typically around the seat, keeping the tape parallel to the floor.
Measure over form-fitting clothing or directly on skin rather than over bulky layers for an accurate number.
If your waist and hip measurements fall into two different size rows, size for hips in leggings and for waist in tops, then rely on the return policy if the fit isn't right.

How Lululemon sizing tends to run

Many shoppers find Lululemon runs slightly smaller than mainstream North American brands at the same number, especially in fitted styles like the Align and Wunder Train lines.
This varies by fabric — compressive fabrics (Everlux, Nulu) tend to fit close to the body, while relaxed or 'loose' fits are cut with more ease at the same size number.
Because fit varies by style, the size you wear in one legging line isn't guaranteed to be your size in a jacket or a different legging style.

What to do if you're between sizes

For compressive leggings meant to fit snugly (like Align), many people size up if between two sizes for more comfortable all-day wear.
For relaxed-fit tops and joggers, sizing down between two sizes is common if you prefer a more fitted silhouette.
When in doubt, order both sizes if returns are free and easy, since fit differs enough between fabrics that a chart alone can't guarantee the right call.

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Frequently asked questions

Many shoppers find Lululemon's fitted styles run slightly smaller than other North American brands at the same numeric size, though this varies by garment and fabric. Check the specific product's size and fit notes rather than relying only on a general chart.

More size guides

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