UGG Size Chart
UGG size guide for women, men and kids with foot lengths in inches and cm. Sheepskin boots fit snug and stretch with wear, so size down if between sizes.
Last updated June 2026 · compiled from the official UGG size guide · reviewed by the Sizely team
Find your UGG size
Measure your bare foot heel-to-toe, standing, in the afternoon.
Enter your foot length to see your UGG size.
Fit tip: Classic sheepskin UGGs run large and stretch with wear, so size down a half to full size. Slippers run small, so size up.
How to measure
- Chest / bust: around the fullest part, keeping the tape level.
- Waist: around the narrowest part, usually at the belly button.
- Hips: around the widest part of your seat.
- Foot length: stand on paper, mark from heel to longest toe, then measure the line.
Use a soft tape over light clothing, snug but not tight.
UGG size guide at a glance#
Measure your foot heel to toe and match it to the Length columns below. Separate charts cover women, men, kids, toddlers and infants, each with foot lengths in centimeters and inches. Sheepskin styles fit snug at first and stretch with wear, so if you're between sizes, take the smaller one.
Quick conversions: a women's US 7 is a UK 5 and an EU 38, fitting a 24 cm (9.45 in) foot. A men's US 8 is a UK 7 and an EU 41, fitting a 26 cm (10.24 in) foot. UGG women's UK sizes run two below the US number; men's and kids' UK sizes run one below.
Do UGGs run big or small? Most sheepskin-lined styles fit roomy and loosen further as the lining packs down, which is why UGG advises sizing down when between sizes. Sandals and sneakers fit closer to standard, so check the chart for the style you're buying rather than reusing your boot size.
Do UGGs come in half sizes? The adult charts list half sizes, but many classic boot styles are made in whole sizes only. If your half size is not offered, go down rather than up.
If you want a calculator rather than a chart, the shoe size recommender converts the size you already wear in another brand, and the international shoe size conversion chart lines up US, UK and EU systems.
Women's UGG shoe size chart#
UGG women's sizes cover boots, slippers and sandals. Measure your foot heel to toe and match it in the Length columns; the same row gives the UK and EU sizes (a US 7 is a UK 5 and an EU 38). A close match is right for sheepskin styles, since the lining packs down with wear.
| Size (US) | Size (UK) | Size (EU) | Length (cm) | Length (in) |
|---|---|---|---|---|
| 5 | 3 | 36 | 22.0 | 8.66" |
| 5.5 | 3.5 | 36.5 | 22.5 | 8.86" |
| 6 | 4 | 37 | 23.0 | 9.06" |
| 6.5 | 4.5 | 37.5 | 23.5 | 9.25" |
| 7 | 5 | 38 | 24.0 | 9.45" |
| 7.5 | 5.5 | 38.5 | 24.5 | 9.65" |
| 8 | 6 | 39 | 25.0 | 9.84" |
| 8.5 | 6.5 | 39.5 | 25.5 | 10.04" |
| 9 | 7 | 40 | 26.0 | 10.24" |
| 9.5 | 7.5 | 40.5 | 26.5 | 10.43" |
| 10 | 8 | 41 | 27.0 | 10.63" |
| 10.5 | 8.5 | 41.5 | 27.5 | 10.83" |
| 11 | 9 | 42 | 28.0 | 11.02" |
| 11.5 | 9.5 | 42.5 | 28.5 | 11.22" |
| 12 | 10 | 43 | 29.0 | 11.42" |
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Men's UGG shoe size chart#
Men's UGG boots, slippers and casual shoes follow the chart below; a US 8 is a UK 7 and an EU 41. Measure heel to toe in centimeters for the most reliable match instead of reusing your size from a stiffer shoe.
| Size (US) | Size (UK) | Size (EU) | Length (cm) | Length (in) |
|---|---|---|---|---|
| 6 | 5 | 39 | 24.0 | 9.45" |
| 6.5 | 5.5 | 39.5 | 24.5 | 9.65" |
| 7 | 6 | 40 | 25.0 | 9.84" |
| 7.5 | 6.5 | 40.5 | 25.5 | 10.04" |
| 8 | 7 | 41 | 26.0 | 10.24" |
| 8.5 | 7.5 | 41.5 | 26.5 | 10.43" |
| 9 | 8 | 42 | 27.0 | 10.63" |
| 9.5 | 8.5 | 42.5 | 27.5 | 10.83" |
| 10 | 9 | 43 | 28.0 | 11.02" |
| 10.5 | 9.5 | 43.5 | 28.5 | 11.22" |
| 11 | 10 | 44 | 29.0 | 11.42" |
| 11.5 | 10.5 | 44.5 | 29.5 | 11.61" |
| 12 | 11 | 45 | 30.0 | 11.81" |
| 13 | 12 | 46 | 31.0 | 12.20" |
| 14 | 13 | 48.5 | 32.0 | 12.60" |
| 15 | 14 | 49.5 | 33.0 | 12.99" |
| 16 | 15 | 50.5 | 34.0 | 13.39" |
Kids' UGG shoe size chart#
The kids' chart covers roughly ages 5 to 12; UK sizes run one below US (a US 13 is a UK 12 and an EU 31). Measure your child's foot and match the Length columns, leaving about a centimeter of growing room. Once they outgrow this range, switch to the adult charts by foot length.
Kids (5-12 Years)#
| Size (US) | Size (UK) | Size (EU) | Length (cm) | Length (in) |
|---|---|---|---|---|
| 10 | 9 | 27 | 17.0 | 6.69" |
| 11 | 10 | 28 | 18.0 | 7.09" |
| 12 | 11 | 29/30 | 19.0 | 7.48" |
| 13 | 12 | 31 | 19.5 | 7.68" |
| 1 | 13 | 32 | 20.0 | 7.87" |
| 2 | 1 | 33/34 | 21.0 | 8.27" |
| 3 | 2 | 35 | 22.0 | 8.66" |
| 4 | 3 | 36 | 23.0 | 9.06" |
| 5 | 4 | 37 | 23.5 | 9.25" |
| 6 | 5 | 38/39 | 24.5 | 9.65" |
Infant UGG shoe size chart#
Infant sizes (3 to 24 months) and toddler sizes (2 to 5 years) have separate tables below. Crib styles are forgiving on fit: match the foot length and round up rather than down.
Infants (3-24 Months)#
| Size (US) | Size (UK) | Size (EU) | Length (cm) | Length (in) |
|---|---|---|---|---|
| 0/1 | 0.5 | 16 | 9.0 | 3.54" |
| 02/03 | 2 | 18 | 11.0 | 4.33" |
| 04/05 | 4 | 20.5 | 12.5 | 4.92" |
| 06/07 | 6 | 23.5 | 14.5 | 5.71" |
Toddlers (2-5 Years)#
| Size (US) | Size (UK) | Size (EU) | Length (cm) | Length (in) |
|---|---|---|---|---|
| 4 | 3 | 19 | 11.5 | 4.53" |
| 5 | 4 | 20 | 12.0 | 4.72" |
| 6 | 5 | 21 | 13.0 | 5.12" |
| 7 | 6 | 22/23 | 14.0 | 5.51" |
| 8 | 7 | 24/25 | 15.0 | 5.91" |
| 9 | 8 | 26 | 16.0 | 6.30" |
| 10 | 9 | 27 | 17.0 | 6.69" |
| 11 | 10 | 28 | 18.0 | 7.09" |
| 12 | 11 | 29/30 | 19.0 | 7.48" |
Frequently asked questions#
Do UGG boots run true to size?#
Sheepskin-lined boots tend to run slightly large and loosen further as the lining compresses; sandals and sneakers fit closer to standard. Measure your foot and use the Length columns for the style you're buying instead of reusing a size from another brand.
Should I wear socks with my UGG boots?#
UGG boots are designed to be worn without socks, allowing the sheepskin lining to mold to your feet and provide natural insulation.
What if I'm between sizes?#
If you are between sizes, UGG generally recommends sizing down for a snug fit, as their boots tend to stretch slightly with wear.
What is UGG size EU 38 in US?#
In women's UGG sizing, EU 38 is a US 7 and a UK 5, fitting a foot about 24 cm (9.45 inches) long. In men's sizing, the nearest listed size is EU 39, which is a US 6. If you only know your foot length, match the centimeter value in the charts above instead of converting twice.
How do I care for my UGG footwear?#
To maintain the quality of your UGGs, use a suede protector and clean them with a damp cloth. Avoid submerging them in water.
Sizing tips#
A few things worth checking before you order:
- Initial fit: UGG boots should feel snug, not painful, on day one; the sheepskin compresses and molds to your foot within a few wears.
- Socks: classic boots are designed for bare feet. If you plan to wear thick socks, do not size down.
- Between sizes: size down; the lining gives a few millimeters over the first weeks of wear.
- Kids: leave about a centimeter of growing room in the kids' chart, but no more; oversized boots trip kids up.
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