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Crocs Size Guide

Crocs Size Guide

* Should be used as a general rough guide only

Unisex
US Size UK Size EU Size JP Size Korea (mm)
M4 | W6 M3 | W4 36–37 22 230
M5 | W7 M4 | W5 37–38 23 240
M6 | W8 M5 | W6 38–39 24 250
M7 | W9 M6 | W7 39–40 25 260
M8 | W10 M7 | W8 41–42 26 265
M9 | W11 M8 | W9 42–43 27 270
M10 | W12 M9 | W10 43–44 28 280
11 10 45–46 29 290
12 11 46–47 30 N/A
13 12 48–49 31 N/A
14 13 49–50 N/A N/A
15 14 50–51 N/A N/A
16 15 51–52 N/A N/A
17 16 52–53 N/A N/A
Men's
US Men's UK Size EU Size JP Size MM
4 N/A N/A 22 221
5 N/A N/A 23 229
6 N/A N/A 24 238
7 6 39–40 25 246
8 7 41–42 26 255
9 8 42–43 27 263
10 9 43–44 28 272
11 10 45–46 29 280
12 11 46–47 30 288
13 12 48–49 31 297
Women's
US Women's UK Size EU Size JP Size MM
3 N/A N/A N/A 204
4 N/A N/A N/A 212
5 3 34–35 21 221
6 4 36–37 22 229
7 5 37–38 23 238
8 6 38–39 24 246
9 7 39–40 25 255
10 8 41–42 26 263
11 9 42–43 N/A 272
12 10 N/A N/A 280
Kids
US Size UK Size EU Size JP Size MM
C6 Child 6 22–23 14 132
C7 Child 7 23–24 15 140
C8 Child 8 24–25 15.5 149
C9 Child 9 25–26 16.5 157
C10 Child 10 27–28 17.5 166
C11 Child 11 28–29 18 174
C12 Child 12 29–30 18.5 183
C13 Child 13 30–31 19 191
J1 Youth 1 32–33 19.5 200
J2 Youth 2 33–34 20 208
J3 Youth 3 34–35 21 217
J4 4 36–37 22 225
J5 5 37–38 23 233
J6 6 38–39 24 242

Measuring Your Feet

Always measure your feet wearing socks unless the style is made to be worn with bare feet. Use your largest foot to take the measurement, and if unsure, measure both and use the larger measurement.

What you'll need: A ruler or tape measure, a pen and a blank piece of paper (A4 or larger)

Place your foot on paper with heel against the wall
1

Place the short end of the paper against a wall. Place your largest foot on the paper with your heel against the wall, so that your heel is equal with the edge of the paper.

Mark where your longest toe ends
2

Without moving your foot, use the pen to mark where your longest toe ends. Step off the paper.

Measure from the edge of the paper to the line
3

Using your ruler or tape measure, measure from the edge of the paper to the line you have drawn. You can now use this measurement to determine your shoe size.

Crocs Sizing & Fit FAQs

What are Crocs made of?

Crocs are made from Croslite, a proprietary closed-cell resin foam developed by Crocs. It isn't plastic or rubber, and although it is often described as an EVA-style foam, the exact recipe is Crocs' own.

The closed-cell structure is what gives Crocs their character: very light, water-resistant rather than water-absorbing, odour-resistant, and cushioned underfoot. It also softens slightly with body heat, so a pair moulds a little to your foot over time.

What do the M and W sizes on Crocs mean?

Most adult Crocs are unisex and are labelled with both a men's and a women's size, for example M7/W9. They are the same shoe — just two ways of describing the same length.

If you normally wear a women's 9, look for W9. If you wear a men's 7, look for M7. Our NZ shoe size conversion chart can help if you're working from a UK or EU size.

Do Crocs run big or small?

Crocs are designed to be roomy, so they generally feel generous rather than snug. If you are between sizes, most people are happier sizing down.

The Classic Clog is meant to have a little movement in it — your foot shouldn't be locked in place. If you want a more secure fit, turn the heel strap down. Check the size chart on this page for the exact measurements, and get in touch if you're unsure.

Can Crocs get wet?

Yes. Croslite is closed-cell, so it doesn't soak up water. Crocs are fine at the beach, the pool, on the boat or in the garden, and they dry quickly.

How do I clean my Crocs?

Wash them with mild soap and cold water, then let them air dry away from direct heat.

Avoid hot water, the dryer, and leaving them in a hot car or in direct sun for long periods — heat can distort Croslite and change the fit permanently.

Do Crocs stretch over time?

Not in the way leather does. Croslite softens with body heat and will mould slightly to the shape of your foot, but it won't stretch out to fix a size that is too small. Buy the size that fits properly from the start.

What size Crocs should I buy for my child?

Measure your child's foot length and compare it to the kids' chart on this page rather than sizing by age — children's feet grow at very different rates.

Leave about a thumb's width of growing room, and always fit to the larger foot. If you'd like a hand, bring them into the store at Queenwood and we'll measure them properly.

Now you know your size

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