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UGG to Crocs size conversion

Match sizes by foot length (cm), then check model fit — US labels alone can mislead across brands.

Chart match · verify brand charts
Check current prices · Classic Mini Check current prices · Classic Clog

(paid link)

Full converter (model + shoes you own) · Reverse: Crocs → UGG

UGG → Crocs chart

Static conversion table (crawlable). Interactive tool above uses the same cm matching.

UGG UScmCrocs USCrocs EU
6.023.46.038.5
6.523.96.038.5
7.024.46.539.0
7.524.97.040.0
8.025.27.540.5
8.525.88.041.0
9.026.18.542.0
9.526.69.042.5
10.027.09.543.0
10.527.410.044.0
11.027.810.544.5
11.528.211.045.0
12.028.711.545.5
13.029.612.046.0

Why UGG US 10 becomes Crocs US 9.5 here

UGG US 10 is 27.0 cm on this table; the nearest Crocs label is US 9.5 (EU 43). UGG 10.5 (27.4 cm) maps to Crocs 10 (EU 44). Classic Mini / Short / Ultra Mini and Tasman sit on a sheepskin boot/slipper last; Classic Clog and Echo Clog are molded foam with a different volume and a well-known “size down” habit that this chart is already baking into the centimeter match.

Do not stack habits. If you already size Crocs down a full size from sneakers, and you also follow this table’s half-size drop from UGG, you can overshoot into a clog that dumps the heel. The 27.0 cm row is the whole conversion. Treat it as “same foot length,” then let the clog’s foam volume feel roomy rather than dropping another number.

UGG Classic Mini is often TTS-to-snug in the shaft; Crocs Classic is high-volume and often worn with empty space at the heel. Echo Clog is a different, usually snugger clog last — do not copy Classic Clog’s size-down into Echo. Start at the Crocs US printed next to 27.0 cm, then open each clog/boot guide for shaft vs cavity, not another chart hop.

Model fit matters

Even when charts match, lasts differ. Check these guides:

UGG: Classic Mini · Classic Short II · Tasman Slipper · Classic Ultra Mini

Crocs: Classic Clog · Echo Clog

Check prices: UGG Crocs (paid link)

FAQ

How do I convert UGG shoe size to Crocs?
Match by foot length in centimeters on each brand’s chart. Example: UGG US 10 ≈ Crocs US 9.5 (about 27.0 cm). Then adjust for the specific model’s fit (runs big/small/narrow).
Is a UGG US 10 the same as a Crocs US 10?
Not always. Labels can map to slightly different foot lengths. Use the cm column, then check model guides on both brands.
Which direction should I read first?
Start from the brand you already wear, then open the model fit pages linked below — lasts differ even when charts match.

Clothes sizing uses a separate compare path.