Ugg Sizing

5 Min Read

Does anything say cosy winter chic like Ugg boots? These classic boots are a staple of any wardrobe and according to their fans, some of the comfiest boots that money can buy!

If you’re going to invest in a pair, don’t waste your money and get the wrong size! Our size guide will tell you everything you need to know about Uggs sizing, from whether these boots run true to size to whether they stretch over time.

If you fancy grabbing yourself a pair, keep reading for everything you need to know and check out our Ugg sizing charts for reference.

Disclaimer: This guide was created for educational purposes and neither offers nor replaces medical advice.

Table of Contents

Uggs Size Charts

Men’s Sizing Chart

Heel-Toe Measurement (IN) US UK EU Japan (CM)
9.06
5
4
38
23
9.45
6
5
39
24
9.65
6.5
5.5
39.5
24.5
9.84
7
6
40
25
10.04
7.5
6.5
40.5
25.5
10.24
8
7
41
26
10.43
8.5
7.5
41.5
26.5
10.63
9
8
42
27
10.83
9.5
8.5
42.5
27.5
11.02
10
9
43
28
11.22
10.5
9.5
43.5
28.5
11.42
11
10
44
29
11.61
11.5
10.5
44.5
29.5
11.81
12
11
45
30
12.20
13
12
46
31
12.60
14
13
48.5
32

Women’s Sizing Chart

Heel-Toe Measurement (IN) US UK EU Japan (CM)
8.66
5
3
36
22
8.86
5.5
3.5
36.5
22.5
9.06
6
4
37
23
9.25
6.5
4.5
37.5
23.5
9.45
7
5
38
24
9.65
7.5
5.5
38.5
24.5
9.84
8
6
39
25
10.04
8.5
6.5
39.5
25.5
10.24
9
7
40
26
10.43
9.5
7.5
40.5
26.5
10.63
10
8
41
27
10.83
10.5
8.5
41.5
27.5
11.02
11
9
42
28
11.42
12
10
43
29
11.81
13
11
44
30
12.20
14
12
45
31

Kids Sizing Chart

Heel-Toe Measurement (IN) US UK EU Japan (CM)
6.69
10
9
27.5
17
6.89
11
10
28.5
17.5
7.28
12
11
30
18.5
7.68
13
12
31
19.5
7.87
1
13
32.5
20
8.27
2
1
33.5
21
8.66
3
2
35
22
8.86
4
3
36
22.5
9.25
5
4
37
23.5
9.65
6
5
38
24.5

1

Do Ugg Boots Fit True to Size?

Ugg boots do not fit true to size. It is recommended that you go down a size when ordering Uggs. In the UK, Ugg boots run even larger. You will need to go down a size and a half.

The more that you wear your Uggs, the more that the footbed flattens and moulds to your feet. Because Uggs stretch out a lot with wear, they should be snugly fitted to start with. If you try on the shoes to find that they are so tight that they hurt or feel uncomfortable, you’ll need to opt for a bigger size. They should encase the foot but not restrict movement in any way.

To find the correct size for you, always make sure you try on shoes when possible. The best idea is to ask to try two sizes in the store, your normal size and then the size up. From here, you can compare which feels most comfortable.

2

Ugg Boot UK Sizing

If you are looking at the UK Uggs size, things can be a little confusing. Ugg says that this is to make sure that their sizing aligns with international footwear sizing guidelines.

Therefore, the women’s size on the box and inside the boot is shown half a size larger. This is because the US sizing conversion is used.

To make sure that you find the best fitting Ugg boots for you, use our sizing charts above.

Ugg Boots FAQs

Do Ugg boots run in half sizes?

Most of the shoes and boots that Ugg produce run in full sizes only. However, there are some fashion and snow ranges which are offered in half sizes.

What are Ugg boots made of?

Justifying their hefty price tag, the iconic Ugg boots are made from sheepskin, which has a lining of natural wool. This sheepskin goes through a rigorous quality control procedure, with each piece being checked six times before being given clearance to be used. This means that only the finest quality materials are used. Uggs feature their proprietary Treadlite sole for extra cushioning and comfort.

Will Ugg boots be ruined in the rain or snow?

Uggs are a popular footwear choice for those cold winter months. However, it probably comes as no surprise that they are not particularly suited to very bad weather. Most styles of Ugg boots are made using suede and sheepskin, which can easily stain when exposed to rain and snow.

As Ugg boots are a very big investment, you’ll want to keep them looking their best for as long as possible. As such, avoid wearing them in bad weather whenever possible!

Will Ugg boots stretch?

Ugg boots should fit snugly to your feet when they are first bought. The sheepskin upper will stretch out some and, over time, the footbed will flatten. This loosening means that they will feel much roomier as you continue to break them in.

If the lining of your boots has completely flattened, you can always buy replacement fluffy insoles from Uggs. Replacing the insoles helps you to get the most bang for your buck and lengthens the life of your boots.

Good To Know

  • Ugg Boots fit large so you’ll need to buy a size down from your normal size
  • In the UK, Uggs run even larger – go down a size and a half
  • The boots stretch and the footbed flattens with wear

Conclusion

When buying Ugg boots, it is important to remember two things. Firstly, you will need to take into account the fact that Uggs stretch over time. Secondly, these boots run famously large so you’ll need to buy a size down. If you’re in the UK, you should go down a size and a half if possible.

To get the best fit for you, always make sure that you have an up to date measurement of your shoe size. Once you’ve measured your feet, you can use our Uggs size charts to find the perfect fitting pair.

Writer:

Colin Slager

Last Updated:

March 2, 2022

DR. KARIM MAGHRABY

Dr. Maghraby is a medical doctor and published physician scientist. He’s an avid runner and a user of sports compression gear.