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

Match by foot length in centimeters on each brand’s chart. Example: Keen US 10 ≈ Thursday Boot Co. US 9.5 (about 27.0 cm). Model fit can still differ — check model guides.

Is a Keen 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 adjust for the specific model’s fit.

Keen 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

Check current prices · Newport H2 Check current prices · Captain

(paid link)

Your Keen size (US)

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

Keen → Thursday Boot Co. chart

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

Keen 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:

Keen: Newport H2

Thursday Boot Co.: Captain

Also compare Keen to: Merrell

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

FAQ

How do I convert Keen shoe size to Thursday Boot Co.?: Match by foot length in centimeters on each brand’s chart. Example: Keen 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 Keen 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.