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Asics to Thursday Boot Co. size conversion

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

Chart match · verify brand charts

(paid link)

Your Asics size (US)

Full converter (model + shoes you own) · Reverse: Thursday Boot Co. → Asics

Asics → Thursday Boot Co. chart

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

Asics US	cm	Thursday Boot Co. US	Thursday Boot Co. 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	7.5	40.5
8.5	25.8	8.5	42.0
9.0	26.1	8.5	42.0
9.5	26.6	9.5	43.0
10.0	27.0	9.5	43.0
10.5	27.4	10.0	44.0
11.0	27.8	10.5	44.5
11.5	28.3	11.5	45.5
12.0	28.7	11.5	45.5
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

Thursday Boot Co.: Captain

Also compare Asics to: Brooks

Check prices: Asics Thursday Boot Co. (paid link)

FAQ

How do I convert Asics shoe size to Thursday Boot Co.?

Match by foot length in centimeters on each brand’s chart. Example: Asics US 10 ≈ Thursday Boot Co. US 9.5 (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 Thursday Boot Co. 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.