Women’s 11.5 in men’s, men’s 10 in women’s

A women’s US 11.5 is a men’s US 10 by the standard size tables, and a men’s 10 is a women’s 11.5: women’s sizes run 1½ above men’s.

UK 9, EU 42.5–43, for a foot of 26.7 to 27.1 cm.

5 of 18 brands map it differently on their own charts (adidas, HOKA, Salomon and 2 more). For men’s 10, 10 of 23 brands map it differently (adidas, HEYDUDE, HOKA and 7 more). Check the brand you’re buying.

How 18 brands map women’s 11.5

Brand · their women’s sizeOn their men’s chartFoot, this sizeMatched by
adidasUS 11.5US 10.527.6 cmEU 44 2/3
ASICSUS 11.5US 10—printed beside its US 11.5
BrooksUS 11.5US 10—printed beside its US 11.5
ClarksUK 9US 1027.2 cmEU 43
HOKAUS 11.5US 10.527.5 cmEU 44 2/3
JordanUS 11.5US 1027.5 cmprinted beside its US 11.5
MerrellUS 11.5US 10—printed beside its US 11.5
MizunoUS 11.5US 10—EU 43
New BalanceUS 11.5US 1028.5 cmprinted beside its US 11.5
NikeUS 11.5US 1027.5 cmprinted beside its US 11.5
OnUS W11.5 / M10US 10—W11.5 / M10
ReebokM10/W11.5US 1027.2 cmM10/W11.5
SalomonUS 11.5US 10.528.0 cmEU 44 2/3
SauconyUS 11.5US 1027.9 cmprinted beside its US 11.5
TevaM10 / W11.5US 1028.45 cmM10 / W11.5
UGGUS 11.5US 10.528.45 cmUK 9.5
Under ArmourUS 11.5US 1028.0 cmEU 44
VejaEU 42.5US 9.527.0 cm42.5

How 23 brands map men’s 10

Brand · their men’s sizeOn their women’s chartFoot, this sizeMatched by
adidasUS 10US 1127.1 cmEU 44
ASICSUS 10US 11.5—printed beside its US 10
BrooksUS 10US 11.5—printed beside its US 10
ClarksUK 9US 11.527.2 cmEU 43
HEYDUDEUS 10US 1127.0 cmfoot ≤ 27.0 cm
HOKAUS 10US 1127.2 cmEU 44
JordanUS 10US 11.527.1 cmprinted beside its US 10
KEENUS 10US 1127.0 cmfoot ≤ 27.0 cm
MerrellUS 10US 11.5—printed beside its US 10
MizunoUS 10US 11.5—EU 43
New BalanceUS 10US 11.528.0 cmprinted beside its US 10
NikeUS 10US 11.527.1 cmprinted beside its US 10
OnUS W11.5 / M10US 11.5—W11.5 / M10
ReebokM10/W11.5US 11.527.2 cmM10/W11.5
SalomonUS 10US 1127.5 cmEU 44
SauconyUS 10US 11.527.9 cmprinted beside its US 10
SkechersUS 10US 12—UK 9
SORELUS 10US 1127.3 cmUK 9
TevaM10 / W11.5US 11.528.45 cmM10 / W11.5
TimberlandUS 10US 1128.0 cmfoot ≤ 28.0 cm
UGGUS 10US 1127.9 cmUK 9
Under ArmourUS 10US 11.528.0 cmEU 44
ZaraUS 10US 1127.6 cmUK 9

From each brand’s own charts, linked: the other side’s size where the chart prints it beside this one, or both sizes on one row; otherwise the row on the other chart with the same EU (or UK) size; otherwise the nearest foot length, within 3 mm. “Foot” is the brand’s own foot length for the size in the heading, where its chart gives one, not for the size it maps to. Highlighted rows differ from the standard tables. Not affiliated with any brand.

Who wears women’s 11.5 and men’s 10?

The foot each brand’s own chart makes women’s 11.5 for runs from 27.2 cm (Clarks) to 28.5 cm (Dr. Martens) across 12 charts; the standard size tables make it for a foot up to 27.1 cm. Pick the brand whose foot length is at or just above yours.

From the men’s side, the foot each brand’s men’s chart makes men’s 10 for runs from 27.0 cm (KEEN) to 28.45 cm (Teva) across 20 charts.

In the US Army’s 2012 ANSUR II survey of 1,986 women, 2.8% (55) had a foot in this size’s range, 26.7 to 27.1 cm, and 97% had a foot of 27.1 cm or shorter; of the 4,082 men, 13% (513) had a foot in it.

Men’s shoes are cut wider than women’s

At this length, a women’s standard width (B) is 92 mm across the ball, 12 mm narrower than men’s standard D (104 mm); the nearest men’s width is B (100 mm). For men buying women’s shoes the other way round, the nearest women’s width to men’s D is 2E (99 mm). Width letters explained.

Men’s D (standard)104 mm
Women’s B (standard)92 mm
Men’s B (narrow)100 mm
From New Balance’s chart, at its row for a 27.1 cm foot, which it labels men’s 9 and women’s 10 (its own sizes, not the conversion above). Check your width.

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Sizes for

Women’s US 11.5 in every system

SystemSize
Foot length (cm)26.7–27.1
US men’s10
US kids (Y)—
UK9
EU42.5–43
Mondopoint (mm)270–275
Japan (cm)27–27.5

From the standard size tables; where the foot range spans two sizes, both are shown.

Size tables checked 2026-10-23; brand sizes from each brand’s own charts, linked above. An estimate to help you choose: fit varies by brand and model. Not medical advice.