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Use Our UGG Size Chart & Find The Right Size For You

Posted by UGG Since 1974 on

Purchasing a pair of UGG boots is an investment in comfort and quality! With the right amount of care and protection, our genuine sheepskin boots will last you between five to twenty years! Let us help you with our tips and tricks on finding the ideal size for you. There's nothing quite like a pair of perfect UGG boots.

When you've made the decision to purchase a pair of UGG boots or slippers, please read the Size & Fit tab on the appropriate product page. Our sizing varies depending on the style. 

Sizing for UGG Boots

Upon first wear, your UGGs should feel quite firm and tight. Your toes should be close to the tip of the boot without curling. Make sure that they do not slip at the heel when you walk. It is common that people will say their UGGs feel 'too small' upon initial try-on, thinking that they should be purchased bigger so that there is room to move around. Don't be fooled! The wool compresses with weight and will begin to mold to the shape of your feet when you wear them in. The suede exterior will also give a little the more you wear them, as a result of the natural sheepskin properties. They should stretch around half a size. This is part of the beauty of UGG boots and why they are so comfortable! They have the ability to mold around around your feet in all the right places.

Sizing for UGG Slippers

Slippers are not really that true to size, due to their open back. This gives our foot a little bit more 'wiggle room'. Without the reinforcement, slippers and slides generally feel slightly bigger than a boot of the same size. We typically advise customers to size down from their regular shoe size when purchasing our sheepskin slippers. 

Using Our UGG Size Chart 

We use unisex sizing for our boots and slippers. We encourage you to check out our men and women's conversion charts below to find your US, EU and UK shoe sizes for reference. 

Your freshly purchased sheepskin boots should be a snug fit. As you continue to wear them, the wool will adjust to the shape of your feet and the A-grade sheepskin will stretch around half a size. 

If you're not sure of your usual shoe size (or just want to make sure you are 100% on your size choice), you can measure your foot from the top of your longest toe to the back of your heel. After you've measured, refer back to our size chart to see which size corresponds best with your foot length. Alternatively, download our At-Home Size Guide to see for yourself!

Tips for Measuring Your Feet

Measure your feet in the late afternoon, as they tend to swell at this time of the day. Many people also have one foot slightly larger than the other! Ensure you measure both your feet and choose the size that fits the larger of the two.

Wearing Your UGGs

Genuine UGG boots are meant to be worn without socks. Wool will naturally wick away moisture and allows air circulation to keep your feet dry. If you prefer to wear socks, select cotton socks or another natural fibre. You can read more about this here  

Women's UGG Size Chart 
Foot Length (mm)
Foot Length (inches)
Our UGG Size
USA
AUS
UK
Europe
Korea
Japan
210
8.26
4
4
4
2
34
210
21
220
8.66
5
5
5
3
35
220
22
230
9.05
6
6
6
4
36
230
23
240
9.44
7
7
7
5
37
240
24
250
9.84
8
8
8
6
38
250
25
260
10.23
9
9
9
7
39
260
26
265
10.43
10
10
10
8
40
265
26.5
270
10.63
11
11
11
9
41
270
27
280
11.02
12
12
12
10
42
280
28


*Sizing for slippers & slides may differ. We recommend checking the size & fit guide linked on the product pages.

Men's UGG Size Chart 

Foot Length (mm)

Foot Length (inches)

Our UGG Size

AU/USA

UK

Europe

Korea

Japan

 

250

9.84

8

6

5

40

250

25

260

10.23

9

7

6

41

260

26

265

10.43

10

8

7

42

265

26.5

270

10.63

11

9

8

43

270

27

280

11.02

12

10

9

44

280

28

290

11.41

13

11

10

45

290

29

300

11.81

14

12

11

46

300

30

 

310

12.20

15

13

12

47

310

31

 

325

12.79

16

14

13

48

-

-

 

335

13.18

17

15

14

49

-

-


*Sizing for slippers & slides may differ. We recommend checking the size & fit guide linked on the product pages.

Kids' UGG Size Chart 

Foot Length (mm)

Our UGG Size

AUS

UK

USA

Europe

Usually Suitable for Children Aged

145

7

6-7

6-7

7-8

24

2

160

9

8-9

8-9

9-10

26.5

4

170

11

10-11

10-11

11-12

28

6

185

13

12-13

12-13

13-1

30

7

195

2

1-2

1-2

2-3

32

8 (9 years+ should choose Adult Size 4)


*For kids sizes, use the -5 rule: Size 7 (-5 =2) suitable for a 2 year old. Size 9 (-5 = 4): suitable for a 4 year old. Size 11 (-5 =6): suitable for a 6 year old. Size 13 (-5 = 8): suitable for an 8 year old. Generally, any child from 9+ years will fit into our adult size 4.
Baby/Toddler UGG Size Chart

Foot Length (mm)

Our UGG Size

Age

105

S

0-6 months

115

M

6-12 months

140

L

12-18 months

For children who are walking, we recommend selecting a Toddler UGG with a rubber sole for extra traction. For newborns, we recommend selecting a Baby UGG in Small or a Baby Bootie.

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