Last updated 20 May 2026 · 6 min read

Quick answer: Ever UGG boots and slippers run true to AU sizing (which matches UK sizing). For women, AU 6 = EU 37 = US 7. For men, AU 9 = EU 42 = US 10. If you’re between sizes, order the smaller size — sheepskin stretches and moulds to your foot within a few wears.

How to measure your foot for UGG boots

1. Trace your foot. Place a sheet of A4 paper on a hard floor against a wall. Stand on the paper with your heel touching the wall. Trace around your foot with a pencil held vertically.
2. Measure heel to longest toe. Using a ruler, measure the distance from the heel line to the tip of your longest toe in centimetres. Repeat for the other foot — most people have one foot slightly larger. Always size by the larger foot.
3. Measure foot width. Measure the widest part of your foot. If this is wider than average for your length, choose one size larger.
4. Match to the AU size chart below. Find your foot length in centimetres in the chart, then read across to find your AU, EU and US size.
5. Order down if between sizes. Sheepskin stretches — a snug initial fit becomes perfect after a few wears.

Women’s UGG size chart

Foot length (cm)	AU / UK	EU	US
22.0	3	34	4
22.7	4	35	5
23.3	5	36	6
24.0	6	37	7
24.7	7	38	8
25.3	8	39	9
26.0	9	40	10
26.7	10	41	11
27.3	11	42	12

Men’s UGG size chart

Foot length (cm)	AU / UK	EU	US
25.3	6	39	7
26.0	7	40	8
26.7	8	41	9
27.3	9	42	10
28.0	10	43	11
28.7	11	44	12
29.3	12	45	13
30.0	13	46	14

Kids’ UGG size chart

Foot length (cm)	AU / UK Kids	EU Kids	US Kids
13.0	4	20	5
14.0	5	21	6
15.0	6	22	7
16.0	7	24	8
17.0	8	25	9
18.0	9	26	10
19.0	10	27	11
20.0	11	28	12
21.0	12	30	13
22.0	13	31	1 Youth

Special cases & tips from our fit team

• Wide feet: size up one full AU size.
• High arches: stick to your AU size; sheepskin moulds around the arch within a few wears.
• Thick socks: sheepskin already provides insulation; if you plan to wear thick socks, size up one half size.
• Half sizes: our AU range is in full sizes only — always round down to the smaller AU size if you’d normally wear a US half size.
• Children: measure foot length, add 1 cm of growth room, then choose the closest larger AU kids’ size.

Need a personal recommendation?

If you’re still unsure, contact our fit team at support@uggoutlet.com.au with your foot length in centimetres, the product handle you’re looking at, and a note on whether you have wide or narrow feet. We reply within 24 hours.

Browse women’s UGG boots, men’s UGG boots and kids’ UGG boots.

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Frequently asked questions

Do UGG boots run true to size?

Yes for standard widths. Sheepskin moulds and stretches slightly with wear, so a snug initial fit becomes perfect after a few wears. If you’re between sizes, order down.

What’s the conversion between AU, EU and US sizes?

AU sizes match UK sizing. For women: AU 6 = EU 37 = US 7. For men: AU 9 = EU 42 = US 10. See the full chart above.

My feet are wide — should I size up?

Yes — if your feet are wider than average, order one size larger than your normal AU size. Sheepskin will mould to your foot shape over time.

What size should I order for kids?

Children’s feet grow quickly, but UGG boots do not stretch lengthwise. Measure your child’s foot length, add 1 cm of growth room, and choose the closest larger AU kids’ size.

What if I receive UGG boots that don’t fit?

We offer 30-day risk-free returns on all unworn product. You can exchange for a different size or receive a full refund.