Chaco Size Chart
Chaco makes outdoor sandals, including adjustable Z/Sandals, plus shoes and flip flops. Checked against Chaco's own pages on 2026-10-24.
Chaco official size charts
| US | UK | EU | JP |
|---|---|---|---|
| 7 | 6 | 40 | 25 |
| 7.5 | 6.5 | 40.5 | 25.5 |
| 8 | 7 | 41 | 26 |
| 8.5 | 7.5 | 41.5 | 26.5 |
| 9 | 8 | 42 | 27 |
| 9.5 | 8.5 | 42.5 | 27.5 |
| 10 | 9 | 43 | 28 |
| 10.5 | 9.5 | 43.5 | 28.5 |
| 11 | 10 | 44 | 29 |
| 11.5 | 10.5 | 44.5 | 29.5 |
| 12 | 11 | 45 | 30 |
| 12.5 | 11.5 | 45.5 | 30.5 |
| 13 | 12 | 46 | 31 |
| 14 | 13 | 47 | 32 |
| 15 | 14 | 48 | 33 |
Brand columns: US Men's Size, UK, EU, JPN. The page does not say what the JPN value measures.
Source: www.chacos.com/US/en/content
| US | UK | EU | JP |
|---|---|---|---|
| 5 | 3 | 36 | 22 |
| 5.5 | 3.5 | 36.5 | 22.5 |
| 6 | 4 | 37 | 23 |
| 6.5 | 4.5 | 37.5 | 23.5 |
| 7 | 5 | 38 | 24 |
| 7.5 | 5.5 | 38.5 | 24.5 |
| 8 | 6 | 39 | 25 |
| 8.5 | 6.5 | 39.5 | 25.5 |
| 9 | 7 | 40 | 26 |
| 9.5 | 7.5 | 40.5 | 26.5 |
| 10 | 8 | 41 | 27 |
| 10.5 | 8.5 | 41.5 | 27.5 |
| 11 | 9 | 42 | 28 |
| 12 | 10 | 43 | 29 |
Brand columns: US Women's Size, UK, EU, JPN.
Source: www.chacos.com/US/en/content
| US | UK | EU | JP |
|---|---|---|---|
| 10 | 9 | 28 | 16 |
| 10.5 | 9.5 | 28.5 | 16.5 |
| 11 | 10 | 29 | 17 |
| 11.5 | 10.5 | 29.5 | 17.5 |
| 12 | 11 | 30 | 18 |
| 12.5 | 11.5 | 30.5 | 18.5 |
| 13 | 12 | 31 | 19 |
| 13.5 | 12.5 | 31.5 | 19.5 |
| 1 | 13 | 32 | 20 |
| 1.5 | 13.5 | 32.5 | 20.5 |
| 2 | 1 | 33 | 21 |
| 2.5 | 1.5 | 33.5 | 21.5 |
| 3 | 2 | 34 | 22 |
| 3.5 | 2.5 | 34.5 | 22.5 |
| 4 | 3 | 35 | 23 |
| 4.5 | 3.5 | 35.5 | 23.5 |
| 5 | 4 | 36 | 24 |
| 5.5 | 4.5 | 36.5 | 24.5 |
| 6 | 5 | 37 | 25 |
Brand columns: US Kid's Size, UK, EU, JPN; runs from US 10 (little kid) through 6 (big kid).
Source: www.chacos.com/US/en/content
Key facts
- Chaco's official men's chart: US 9 = UK 8 · EU 42 · JP 27.
- Chaco's official women's chart: US 8 = UK 6 · EU 39 · JP 25.
- Chaco lists no width options in its size guide.
- Source: Chaco's official size guide, checked on 2026-10-24.
What Chaco says about fit
- Wide widths are offered in some Z-Series sandals and as custom Z-sandals through MyChacos. (source)
Convert your Chaco size to another brand
What we could not verify
- Chaco's chart has a JPN column but no CM column, and it does not say whether JPN means foot length or shoe length.
- Chaco mentions wide widths but does not publish width codes or measurements, so widths are not listed.
Questions
Which length does Chaco's size chart list?
Chaco's charts give these lengths — JP: size in cm. A measured foot length and a size in cm are about 8 mm apart for the same size, so compare your own foot length only with a column on the same scale.
Does the official chart tell me how a Chaco shoe will fit?
Only in part. The chart gives the length each size is meant for; how a particular model fits also depends on its last, width and materials, which the chart does not show. Chaco itself advises: Wide widths are offered in some Z-Series sandals and as custom Z-sandals through MyChacos.
When should I not compare Chaco sizes with another brand?
When the two charts list different lengths. A measured foot length and a size in cm are about 8 mm apart, and the length of a foot is not the inside length of a shoe, so such a match can be half a size or more off. The converter matches only lengths on the same scale and lists the other brands separately. Chaco's chart does not say whether its lengths are foot or shoe lengths, so treat any match with another brand as approximate.
When was Chaco's chart last checked?
On 2026-10-24, against Chaco's official size guide linked under each chart. The date changes only when the chart is checked again against the official page or its numbers change, not when this page's layout or wording changes.
Cite or reuse this data
Suggested citation: Sizelane, “Chaco Size Chart”, https://sizelane.com/chaco-size-chart (checked 2026-10-24).
The data is free to reuse under CC BY 4.0: name Sizelane, link to this page and keep the link to Chaco's official source. Licence and update policy