Interactive tool · Fit
Gymshark vs Sweaty Betty: leggings size conversion
Size-by-size equivalents, matched by hip measurement from each brand’s published women’s bottoms chart. Where a size falls between two sizes of the other brand, both are shown.
Gymshark → Sweaty Betty
| If you wear Gymshark | Gymshark hips | Choose Sweaty Betty |
|---|---|---|
| XXS | 90 cm · 35.5″ | XS |
| XS | 95 cm · 37.5″ | S |
| S | 100 cm · 39.5″ | M |
| M | 105 cm · 41.5″ | L |
| L | 110 cm · 43.5″ | XL |
| XL | 115 cm · 45.5″ | XL / XXL |
| XXL | 120 cm · 47″ | XXL |
Sweaty Betty → Gymshark
| If you wear Sweaty Betty | Sweaty Betty hips | Choose Gymshark |
|---|---|---|
| XXS | 86 cm · 34″ | — |
| XS | 91 cm · 36″ | XXS |
| S | 96 cm · 38″ | XS |
| M | 101 cm · 40″ | S |
| L | 106 cm · 41.5″ | M |
| XL | 111 cm · 43.5″ | L |
| XXL | 118 cm · 46.5″ | XL / XXL |
Between two sizes? Choose the smaller one for running, gym and compression; choose the larger one for long days, travel or if waistbands tend to dig in.
At a glance
Gymshark
- Size range
- XXS–XXL
- Chart published in
- centimetres
- Source
- Brand chart ↗
- Gymshark says its leggings are designed to fit true to size, to size up when between sizes, and to go by the hip measurement if your waist is smaller.
- Gymshark lists one inseam per length for all sizes: Short 72.5 cm (28.5″), Regular 77.75 cm (30.5″) and Long 82.5 cm (32.5″).
Sweaty Betty
- Size range
- XXS–XXL
- Chart published in
- centimetres
- Source
- Stockist chart ↗
- This chart comes from a stockist and should be confirmed on the brand’s product page before ordering.
Brand size charts in cm and inches
Gymshark
| Size | Waist (cm) | Hips (cm) | Waist (in) | Hips (in) | Other labels |
|---|---|---|---|---|---|
| XXS | 61 | 90 | 24 | 35.5 | UK 4–6 · US 2–4 |
| XS | 66 | 95 | 26 | 37.5 | UK 6–8 · US 4–6 |
| S | 71 | 100 | 28 | 39.5 | UK 8–10 · US 6–8 |
| M | 76 | 105 | 30 | 41.5 | UK 10–12 · US 8–10 |
| L | 81 | 110 | 32 | 43.5 | UK 12–14 · US 10–12 |
| XL | 86 | 115 | 34 | 45.5 | UK 14–16 · US 12–14 |
| XXL | 91 | 120 | 36 | 47 | UK 16–18 · US 14–16 |
Sweaty Betty
| Size | Waist (cm) | Hips (cm) | Waist (in) | Hips (in) | Other labels |
|---|---|---|---|---|---|
| XXS | 59 | 86 | 23 | 34 | UK 6 |
| XS | 64 | 91 | 25 | 36 | UK 8 |
| S | 69 | 96 | 27 | 38 | UK 10 |
| M | 74 | 101 | 29 | 40 | UK 12 |
| L | 79 | 106 | 31 | 41.5 | UK 14 |
| XL | 84 | 111 | 33 | 43.5 | UK 16–18 |
| XXL | 91 | 118 | 36 | 46.5 | UK 18–20 |
How the converter decides
Each size is reduced to the centre of its published hip range (or the single hip value the brand gives). Your hip measurement — or the hip of the size you already wear — is compared with those centres.
If you are within 30% of the gap to the nearest size, you get that size. In the middle of the gap you see both sizes, because the choice then depends on the fit you want, not on the chart.
Waist is shown as a second opinion. In leggings the hip and seat decide whether the fabric stays opaque and stays up; a waist that points one size smaller usually just means a firmer waistband.
Other brand comparisons
LEGGIC is independent and not affiliated with any brand shown. Brand names are used only to identify their published size charts; trademarks belong to their owners.