Crocs Shoes Size Chart
By Mohit Patel, Marketing Specialist, Tailor Size Guide
A Crocs men's US 9 is a UK 8 and EU 42 to 43, made for a foot about 27 to 27.8 cm (10.6 to 10.9 in) long. A women's US 8 is a UK 6 and EU 38 to 39, for a foot about 24 to 24.8 cm.
Crocs are unisex and come in whole sizes only, labelled with a men's and a women's number such as M8 W10. Here's the Crocs chart with UK, EU and foot length in centimetres, what to do if you normally wear a half size, and how Crocs compare with other brands.
Shoe size recommender
Nike men's
US 10.5
US 10.5 · UK 9.5 · EU 44.5
Crocs's chart puts a men's US 9 at a 27 to 27.8 cm foot. Nike's chart fits that foot in a men's US 10.5, made for feet up to 27.5 cm.
| Brand | Size | Chart foot length |
|---|---|---|
| Nike | US 10.5 · UK 9.5 · EU 44.5 | 27.5 cm |
| Adidas | US 10.5 · UK 10 · EU 44 2/3 | 27.6 cm |
| New Balance | US 9.5 · UK 9 · EU 43 | 27.5 cm |
| ASICS | US 9.5 · UK 8.5 · EU 43.5 | 27.5 cm |
| Brooks | US 11 · UK 10 · EU 45 | 27.52 cm |
| HOKA | US 10.5 · UK 10 · EU 44 2/3 | 27.7 cm |
| On* | US 10.5 · UK 10 · EU 44.5 | 27.5 cm |
| Reebok | US 10.5 · UK 9.5 · EU 44 | 27.4 cm |
| Under Armour | US 9.5 · UK 8.5 · EU 43 | 27.5 cm |
| Vans | US 9.5 · UK 8.5 · EU 42.5 | 27.5 cm |
| Crocs | US 9 · UK 8 · EU 42 to 43 | 27 to 27.8 cm |
| Birkenstock | US 10 to 10.5 · UK 9 · EU 43 | 27.1 to 28 cm |
| Dr. Martens | US 10 · UK 9 · EU 43 | 28 cm |
Based on each brand's own published size chart. Brands measure differently, so treat this as a starting point and check the fit notes for the model you're buying.
Crocs men's shoe size chart
| Label | US | UK | EU | Foot length (cm) | Foot length (in) |
|---|---|---|---|---|---|
| M2 W4 | 2 | 1 | 33 to 34 | 20 to 20.8 | 7.9 to 8.2 |
| M3 W5 | 3 | 2 | 34 to 35 | 21 to 21.8 | 8.3 to 8.6 |
| M4 W6 | 4 | 3 | 36 to 37 | 22 to 22.8 | 8.7 to 9.0 |
| M5 W7 | 5 | 4 | 37 to 38 | 23 to 23.8 | 9.1 to 9.4 |
| M6 W8 | 6 | 5 | 38 to 39 | 24 to 24.8 | 9.4 to 9.8 |
| M7 W9 | 7 | 6 | 39 to 40 | 25 to 25.8 | 9.8 to 10.2 |
| M8 W10 | 8 | 7 | 41 to 42 | 26 to 26.8 | 10.2 to 10.6 |
| M9 W11 | 9 | 8 | 42 to 43 | 27 to 27.8 | 10.6 to 10.9 |
| M10 W12 | 10 | 9 | 43 to 44 | 28 to 28.8 | 11.0 to 11.3 |
| M11 W13 | 11 | 10 | 45 to 46 | 29 to 29.8 | 11.4 to 11.7 |
| M12 W14 | 12 | 11 | 46 to 47 | 30 to 30.8 | 11.8 to 12.1 |
| M13 W15 | 13 | 12 | 48 to 49 | 31 to 31.8 | 12.2 to 12.5 |
| M14 W16 | 14 | 13 | 49 to 50 | 32 to 32.8 | 12.6 to 12.9 |
| M15 W17 | 15 | 14 | 50 to 51 | 33 to 33.8 | 13.0 to 13.3 |
| M16 W18 | 16 | 15 | 51 to 52 | 34 to 34.8 | 13.4 to 13.7 |
| M17 W19 | 17 | 16 | 52 to 53 | 35 to 35.8 | 13.8 to 14.1 |
Foot length is the length of foot Crocs's chart gives for each size, measured from heel to longest toe. Inches are converted from centimetres.
Crocs women's shoe size chart
| Label | US | UK | EU | Foot length (cm) | Foot length (in) |
|---|---|---|---|---|---|
| M2 W4 | 4 | 2 | 33 to 34 | 20 to 20.8 | 7.9 to 8.2 |
| M3 W5 | 5 | 3 | 34 to 35 | 21 to 21.8 | 8.3 to 8.6 |
| M4 W6 | 6 | 4 | 36 to 37 | 22 to 22.8 | 8.7 to 9.0 |
| M5 W7 | 7 | 5 | 37 to 38 | 23 to 23.8 | 9.1 to 9.4 |
| M6 W8 | 8 | 6 | 38 to 39 | 24 to 24.8 | 9.4 to 9.8 |
| M7 W9 | 9 | 7 | 39 to 40 | 25 to 25.8 | 9.8 to 10.2 |
| M8 W10 | 10 | 8 | 41 to 42 | 26 to 26.8 | 10.2 to 10.6 |
| M9 W11 | 11 | 9 | 42 to 43 | 27 to 27.8 | 10.6 to 10.9 |
| M10 W12 | 12 | 10 | 43 to 44 | 28 to 28.8 | 11.0 to 11.3 |
| M11 W13 | 13 | 11 | 45 to 46 | 29 to 29.8 | 11.4 to 11.7 |
| M12 W14 | 14 | 12 | 46 to 47 | 30 to 30.8 | 11.8 to 12.1 |
| M13 W15 | 15 | 13 | 48 to 49 | 31 to 31.8 | 12.2 to 12.5 |
| M14 W16 | 16 | 14 | 49 to 50 | 32 to 32.8 | 12.6 to 12.9 |
| M15 W17 | 17 | 15 | 50 to 51 | 33 to 33.8 | 13.0 to 13.3 |
| M16 W18 | 18 | 16 | 51 to 52 | 34 to 34.8 | 13.4 to 13.7 |
| M17 W19 | 19 | 17 | 52 to 53 | 35 to 35.8 | 13.8 to 14.1 |
How Crocs sizes its shoes
Each pair of Crocs carries two US sizes, and the women's number is the men's + 2, not the 1.5 most brands use. So M8 W10 is a single size. EU sizes are always a two size range, such as 41 to 42, and the foot length Crocs prints for each size is the bottom of the range that size fits; Crocs's own example puts a 235 mm foot in the 230 mm size.
Because there are no half sizes, Crocs advises that if you normally wear a half size, you order the size below, as the fit is roomy. Crocs doesn't make wide sizes, and fit varies by style, so some models run a little large or small.
Crocs men's and women's sizes
By foot length on Crocs's own charts, a Crocs women's US 8 matches a men's US 6, and a men's US 9 matches a women's US 11. Because the converter works through foot length, it uses Crocs's own charts rather than a general rule, so you can trust it for switching between Crocs's men's and women's shoes.
Does Crocs run small or large?
By its chart, Crocs links each size to a longer foot than most brands: a men's US 9 is for a foot of about 27 to 27.8 cm, against a typical 26.8 cm across the 13 brands we cover. So the same foot often needs a smaller Crocs number. For example, a 27 cm foot is a Crocs men's US 9 and a Nike men's US 10. Fit also depends on the model, so check the product page too.
Your Crocs size in other brands
A Crocs men's US 9 in other brands
Crocs's chart makes a men's US 9 for a foot of about 27 to 27.8 cm. For that foot, the other brands' charts give:
| Brand | Size for the same foot |
|---|---|
| Nike | US 10.5, UK 9.5, EU 44.5 |
| Adidas | US 10.5, UK 10, EU 44 2/3 |
| New Balance | US 9.5, UK 9, EU 43 |
| ASICS | US 9.5, UK 8.5, EU 43.5 |
| Brooks | US 11, UK 10, EU 45 |
| HOKA | US 10.5, UK 10, EU 44 2/3 |
| On (approx.) | US 10.5, UK 10, EU 44.5 |
| Reebok | US 10.5, UK 9.5, EU 44 |
| Under Armour | US 9.5, UK 8.5, EU 43 |
| Vans | US 9.5, UK 8.5, EU 42.5 |
| Birkenstock | US 10 to 10.5, UK 9, EU 43 |
| Dr. Martens | US 10, UK 9, EU 43 |
A Crocs women's US 8 in other brands
Crocs's chart makes a women's US 8 for a foot of about 24 to 24.8 cm. For that foot, the other brands' charts give:
| Brand | Size for the same foot |
|---|---|
| Nike | US 8, UK 5.5, EU 39 |
| Adidas | US 8, UK 6.5, EU 40 |
| New Balance | US 7.5, UK 5.5, EU 38 |
| ASICS | US 7.5, UK 5.5, EU 39 |
| Brooks | US 9, UK 7, EU 40.5 |
| HOKA | US 8, UK 6.5, EU 40 |
| On (approx.) | US 8.5, UK 6.5, EU 40 |
| Reebok | US 8.5, UK 6, EU 39 |
| Under Armour | US 8, UK 6, EU 39 |
| Vans | US 8, UK 5.5, EU 38.5 |
| Birkenstock | US 7 to 7.5, UK 5, EU 38 |
| Dr. Martens | US 8, UK 6, EU 39 |
To convert any other size, use the converter at the top of this page or the full shoe size recommender.
Tips for buying Crocs shoes
- If you normally wear a half size, Crocs suggests ordering the size below.
- Women's Crocs sizes are men's + 2, so a men's 8 is a women's 10.
- Fit varies by style; check the product page for the model you want.
How to measure your foot
Stand on a sheet of paper with your heel against a wall, mark the tip of your longest toe, and measure from the wall to the mark. Do it at the end of the day, in the socks you'll wear, and use your longer foot. Our guide to measuring your shoe size without a Brannock device has step by step photos.
Other brand size charts
See the Nike shoes size chart, Adidas shoes size chart, New Balance shoes size chart, ASICS shoes size chart, Brooks shoes size chart, HOKA shoes size chart, On shoes size chart, Reebok shoes size chart, Under Armour shoes size chart, Vans shoes size chart, Birkenstock shoes size chart, Dr. Martens shoes size chart. To compare any two brands directly, use the shoe size recommender, and for general conversions the shoe size conversion tool.
Frequently asked questions
What size is a Crocs men's 9 in cm?
Crocs's chart makes a men's US 9 for a foot of about 27 to 27.8 cm (10.6 to 10.9 in). That's a UK 8 and EU 42 to 43.
How do Crocs women's sizes convert to men's?
By foot length on Crocs's own charts, a Crocs women's US 8 matches a men's US 6, and a men's US 9 matches a women's US 11.
Do Crocs shoes run small or large?
By its chart, Crocs links each size to a longer foot than most brands: a men's US 9 is for a foot of about 27 to 27.8 cm, against a typical 26.8 cm across the 13 brands we cover. So the same foot often needs a smaller Crocs number. For example, a 27 cm foot is a Crocs men's US 9 and a Nike men's US 10. Fit also depends on the model, so check the product page too.
Do Crocs come in half sizes?
No, Crocs come in whole sizes only. If you usually wear a half size, Crocs suggests ordering a size down, because the fit is roomy.
What does M8 W10 mean on Crocs?
It's one unisex size: a men's US 8 and a women's US 10. Crocs women's sizes are the men's size plus 2.
Sources and standards
- Crocs adult size chart (Crocs Thailand)Official Crocs size chart, copied as published.
- Crocs size chart (Crocs Malaysia)Official Crocs size chart, copied as published.
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