How do I convert Asics shoe size to UGG?

Match by foot length in centimeters on each brand’s chart. Example: Asics US 10 ≈ UGG US 10.0 (about 27.0 cm). Model fit can still differ — check model guides.

Is a Asics US 10 the same as a UGG US 10?

Not always. Labels can map to slightly different foot lengths. Use the cm column, then adjust for the specific model’s fit.

Asics to UGG 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 · Gel-Kayano 31 Check current prices · Classic Mini

(paid link)

Your Asics size (US)

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

Asics → UGG chart

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

Asics US	cm	UGG US	UGG EU
6.0	23.4	6.0	38.5
6.5	23.9	6.5	39.0
7.0	24.4	7.0	40.0
7.5	24.9	7.5	40.5
8.0	25.3	8.0	41.0
8.5	25.8	8.5	42.0
9.0	26.1	9.0	42.5
9.5	26.6	9.5	43.0
10.0	27.0	10.0	44.0
10.5	27.4	10.5	44.5
11.0	27.8	11.0	45.0
11.5	28.3	11.5	45.5
12.0	28.7	12.0	46.0
13.0	29.6	13.0	47.5

Model fit matters

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

Asics: Gel-Kayano 31 · Gel-1130

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

Also compare Asics to: Brooks

Check prices: Asics UGG (paid link)

FAQ

How do I convert Asics shoe size to UGG?: Match by foot length in centimeters on each brand’s chart. Example: Asics US 10 ≈ UGG US 10.0 (about 27.0 cm). Then adjust for the specific model’s fit (runs big/small/narrow).
Is a Asics US 10 the same as a UGG 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.