# EU, UK & US Sandal Sizes: A Simple Conversion Guide

**By Sole Mate** · 2026-06-02

Sandal sizes jump between EU, UK and US systems, which makes online shopping confusing. Here's a simple women's conversion guide — and the one thing that matters more than any chart.

## Women's sandal size conversion (approximate)

EU

UK

US

36

3

5

37

4

6

38

5

7

39

6

8

40

7

9

These are approximate — conversions vary slightly by brand, so always check against your foot length.

## The thing that matters most: your foot length

Charts are a starting point; your measured foot length is the source of truth. Trace your foot, measure heel-to-toe, do both feet, and use the larger one. [See our full fit guide](/blogs/news/how-should-sandals-fit).

## Sole Mate sizing

Sole Mate uses EU sizing: **bases 36–40** and **tops 36–39.5**. Order your top in the same size as your base. Between sizes? We recommend sizing down. [Find your base](/collections/base-mates).

## FAQ

**I'm between two sizes — which do I pick?** Size down for a secure fit, or [ask us](/pages/contact).

**Do tops and bases share sizes?** Order the same size for both.

**Tags:** fit guide, sizing

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> Source: [Sole Mate](solemate.ae/blogs/news/sandal-size-conversion-guide)