UGG Shoe Size Chart
UGG's own published size chart, matched to real measured foot length. Measure your foot once and read your UGG size directly from the table below — or use the shoe size calculator to do it for you and compare against 34 other brands.
UGG men's size chart
| Foot length (cm) | US | UK | EU | JP |
|---|---|---|---|---|
| 21 | 3 | 2 | 36 | 21 |
| 22 | 4 | 3 | 37 | 22 |
| 23 | 5 | 4 | 38 | 23 |
| 23.5 | 5.5 | 4.5 | 38.5 | 23.5 |
| 24 | 6 | 5 | 39 | 24 |
| 24.5 | 6.5 | 5.5 | 39.5 | 24.5 |
| 25 | 7 | 6 | 40 | 25 |
| 25.5 | 7.5 | 6.5 | 40.5 | 25.5 |
| 26 | 8 | 7 | 41 | 26 |
| 26.5 | 8.5 | 7.5 | 41.5 | 26.5 |
| 27 | 9 | 8 | 42 | 27 |
| 27.5 | 9.5 | 8.5 | 42.5 | 27.5 |
| 28 | 10 | 9 | 43 | 28 |
| 28.5 | 10.5 | 9.5 | 43.5 | 28.5 |
| 29 | 11 | 10 | 44 | 29 |
| 29.5 | 11.5 | 10.5 | 44.5 | 29.5 |
| 30 | 12 | 11 | 45 | 30 |
| 31 | 13 | 12 | 46 | 31 |
| 32 | 14 | 13 | 48.5 | 32 |
| 33 | 15 | 14 | 49.5 | 33 |
| 34 | 16 | 15 | 50.5 | 34 |
UGG women's size chart
| Foot length (cm) | US | UK | EU | JP |
|---|---|---|---|---|
| 22 | 5 | 3 | 36 | 22 |
| 22.5 | 5.5 | 3.5 | 36.5 | 22.5 |
| 23 | 6 | 4 | 37 | 23 |
| 23.5 | 6.5 | 4.5 | 37.5 | 23.5 |
| 24 | 7 | 5 | 38 | 24 |
| 24.5 | 7.5 | 5.5 | 38.5 | 24.5 |
| 25 | 8 | 6 | 39 | 25 |
| 25.5 | 8.5 | 6.5 | 39.5 | 25.5 |
| 26 | 9 | 7 | 40 | 26 |
| 26.5 | 9.5 | 7.5 | 40.5 | 26.5 |
| 27 | 10 | 8 | 41 | 27 |
| 27.5 | 10.5 | 8.5 | 41.5 | 27.5 |
| 28 | 11 | 9 | 42 | 28 |
| 29 | 12 | 10 | 43 | 29 |
| 30 | 13 | 11 | 44 | 30 |
| 31 | 14 | 12 | 45 | 31 |
UGG kids' sizing
UGG does not publish a children's chart distinct from the standard youth scale, so we show the general children's progression rather than presenting it as UGG-specific. See the international shoe size chart for that scale.
How to measure for UGG
Measure heel-to-toe standing, using the longer foot. UGG's classic sheepskin styles are designed to be worn without socks, so measure barefoot for those.
UGG fit guidance
UGG's sheepskin boots and slippers fit snugly at first and the inner wool compresses and moulds to the foot with wear, so they loosen over time. UGG and most retailers recommend sizing DOWN to the nearest whole size if you fall between sizes -- the opposite of the usual size-up advice. Note UGG uses a men's-to-women's offset of only 1 US size (a women's 9 is a men's 8), narrower than the 1.5-2 sizes most brands use. UGG does make children's footwear, but no UGG-published children's foot-length chart was found — the third-party charts available quote the centimetre printed inside the shoe rather than a measured foot. The children's figures shown here are therefore the standard youth scale. UGG's adult guidance to size DOWN when between sizes, because the sheepskin compresses with wear, applies to their children's boots too.
Where this data comes from
Sizing information reviewed September 2026. Manufacturers revise their charts from time to time — always confirm against the specific model before buying.
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