TrueToSize

Convert / Shoes

Altra to Skechers shoe size

The short answer

Altra 11.5 is Skechers 11 or 12 by the two brands' own charts. 1 of 16 Altra sizes land on a different label at Skechers.

At least one of the two brands publishes no foot length, so the rows line up the US size both charts print. Treat it as the label conversion, not a fit.

Every Altra size read across to Skechers. US women's sizes on the left, US women's on the right.
AltraAltra builds it forSkechers, by chartSame labelSkechers builds it forSkechers also prints
4foot length 20.5 cmnot madenot publishednot publishednot published
4.5foot length 21 cmnot madenot publishednot publishednot published
5foot length 21.5 cm5not publishednot publishedUK 2 · EU 35 · CM / JP 22
5.5foot length 22 cm5.5not publishednot publishedUK 2.5 · EU 35.5 · CM / JP 22.5
6foot length 22.5 cm6not publishednot publishedUK 3 · EU 36 · CM / JP 23
6.5foot length 23 cm6.5not publishednot publishedUK 3.5 · EU 36.5 · CM / JP 23.5
7foot length 23.5 cm7not publishednot publishedUK 4 · EU 37 · CM / JP 24
7.5foot length 24 cm7.5not publishednot publishedUK 4.5 · EU 37.5 · CM / JP 24.5
8foot length 24.5 cm8not publishednot publishedUK 5 · EU 38 · CM / JP 25
8.5foot length 25 cm8.5not publishednot publishedUK 5.5 · EU 38.5 · CM / JP 25.5
9foot length 25.5 cm9not publishednot publishedUK 6 · EU 39 · CM / JP 26
9.5foot length 26 cm9.5not publishednot publishedUK 6.5 · EU 39.5 · CM / JP 26.5
10foot length 26.5 cm10not publishednot publishedUK 7 · EU 40 · CM / JP 27
10.5foot length 27 cm10.5not publishednot publishedUK 7.5 · EU 40.5 · CM / JP 27.5
11foot length 27.5 cm11not publishednot publishedUK 8 · EU 41 · CM / JP 28
11.5foot length 28 cm11 or 12not publishednot publishedUK 8 · EU 41 · CM / JP 28
12foot length 28.5 cm12not publishednot publishedUK 9 · EU 42 · CM / JP 29
13foot length 29.5 cm13not publishednot publishedUK 10 · EU 43 · CM / JP 30
Tinted rows change label or sit between two sizes. 2 sizes have no counterpart on the Skechers chart. Read from the two charts only; no formula and no averaging.

What wearers say

Charts describe a garment. People who own both brands describe a fit, and their answer ranks above this table once five of them stand behind it. Pick your size in the converter to see whether there are enough yet.

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Sources

Skechers to Altra